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The 2024 United States House of Representatives elections in California were held on November 5, 2024, to elect the 52 U.S. representatives from the State of California, one from all 52 of the state's congressional districts. The elections coincided with the 2024 U.S. presidential election, as well as other elections to the House of Representatives, elections to the United States Senate, and various state and local elections.
House Majority PAC, a super PAC affiliated with the Democratic Party, announced that it would target four California Republicans in 2024: Mike Garcia of the 27th district, Young Kim of the 40th district, Ken Calvert of the 41st district, and Michelle Steel of the 45th district. Garcia, Kim, and Steel all represent districts that Joe Biden won in the 2020 presidential election, while Calvert's district narrowly voted for Donald Trump. There were two other California Republicans who represent Biden-won districts, John Duarte of the 13th district and David Valadao of the 22nd district. The 13th, 22nd and 40th districts flipped to Trump in the 2024 presidential election, with Duarte losing to Adam Gray in a split ticket vote. Several California Republicans received assistance from Protect the House 2024, a joint fundraising committee launched by former U.S. Speaker of the House and California Republican Kevin McCarthy to support vulnerable House Republicans. Among the representatives included in the committee were Duarte, Valadao, Garcia, Calvert, and Steel, as well as Kevin Kiley of the 3rd district.
| United States House of Representatives elections in California, 2024primary election — March 5, 2024 | | | | | |
| Democratic | 4,341,055 | 59.60 | 125 | 54 | 51 |
| Republican | 2,836,256 | 38.94 | 88 | 49 | 48 |
| No party preference | 71,144 | 0.98 | 21 | 1 | 1 |
| Green | 15,741 | 0.22 | 2 | 0 | 0 |
| Peace and Freedom | 14,042 | 0.19 | 3 | 0 | 0 |
| Libertarian | 4,995 | 0.07 | 2 | 0 | 0 |
| 7,283,233 | 100.00 | 241 | 104 | — | |
Results by district: 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52
The incumbent was Republican Doug LaMalfa, who had represented the district since 2013 and was re-elected with 62.1% of the vote in 2022.
Advanced to general
- Doug LaMalfa (Republican), incumbent U.S. representative
- Rose Penelope Yee (Democratic), financial advisor
Eliminated in primary
- Mike Doran (Democratic), Shasta Union High School District board member
| Campaign finance reports as of February 14, 2024 | | | |
| Doug LaMalfa (R) | $549,612 | $305,500 | $610,802 |
| Rose Penelope Yee (D) | $19,281 | $18,465 | $815 |
| Source | Ranking | As of |
| The Cook Political Report | Solid R | February 2, 2023 |
| Inside Elections | March 10, 2023 | |
| Sabato's Crystal Ball | Safe R | February 23, 2023 |
| Elections Daily | February 5, 2024 | |
| CNalysis | Solid R | November 16, 2023 |
Primary results by county: LaMalfa—80–90% LaMalfa—70–80% LaMalfa—60–70% LaMalfa—50–60%
| Primary election | | | |
| Republican | 122,858 | 66.7 |
| Democratic | 41,669 | 22.6 |
| Democratic | 19,734 | 10.7 |
| 184,261 | 100.0 | | |
| Republican | 208,592 | 65.3 |
| Democratic | 110,636 | 34.7 |
| 319,228 | 100.0 | | |
| | | |
| County | Doug LaMalfaRepublican | Rose Penelope YeeDemocratic | Margin | Total votes cast | | | |
| Butte | 50,979 | 54.99% | 41,729 | 45.01% | 9,250 | 9.98% | 92,708 |
| Colusa | 4,528 | 68.37% | 2,095 | 31.63% | 2,433 | 36.74% | 6,623 |
| Glenn | 7,197 | 71.03% | 2,936 | 28.97% | 4,261 | 42.05% | 10,133 |
| Lassen | 9,004 | 80.12% | 2,234 | 19.88% | 6,770 | 60.24% | 11,238 |
| Modoc | 3,009 | 76.56% | 921 | 23.44% | 2,088 | 53.13% | 3,930 |
| Shasta | 61,876 | 70.82% | 25,489 | 29.18% | 36,387 | 41.65% | 87,365 |
| Siskiyou | 13,229 | 62.71% | 7,865 | 37.29% | 5,364 | 25.43% | 21,094 |
| Sutter | 25,826 | 68.10% | 12,095 | 31.90% | 13,731 | 36.21% | 37,921 |
| Tehama | 19,281 | 73.68% | 6,888 | 26.32% | 12,393 | 47.36% | 26,169 |
| Yuba (part) | 13,663 | 61.97% | 8,384 | 38.03% | 5,279 | 23.94% | 22,047 |
The incumbent was Democrat Jared Huffman, who had represented the district since 2013 and was re-elected with 74.4% of the vote in 2022.
Advanced to general
- Chris Coulombe (Republican), cannabis executive and candidate for this district in 2022
- Jared Huffman (Democratic), incumbent U.S. representative
Eliminated in primary
- Jason Brisendine (no party preference), businessman
- Tief Gibbs (Republican), office manager
- Jolian Kangas (no party preference), automotive business owner
| Campaign finance reports as of February 14, 2024 | | | |
| Jared Huffman (D) | $485,944 | $377,881 | $1,036,873 |
| Chris Coulombe (R) | $64,851 | $52,815 | $12,422 |
| Tief Gibbs (R) | $25,938 | $22,080 | $3,858 |
| Source | Ranking | As of |
| The Cook Political Report | Solid D | February 2, 2023 |
| Inside Elections | March 10, 2023 | |
| Sabato's Crystal Ball | Safe D | February 23, 2023 |
| Elections Daily | February 5, 2024 | |
| CNalysis | Solid D | November 16, 2023 |
Primary results by county: Huffman—80–90% Huffman—70–80% Huffman—60–70% Huffman—40–50%
| Primary election | | | |
| Democratic | 170,271 | 73.4 |
| Republican | 38,039 | 16.4 |
| Republican | 18,834 | 8.1 |
| No party preference | 3,276 | 1.4 |
| No party preference | 1,411 | 0.6 |
| 231,831 | 100.0 | | |
| Democratic | 272,883 | 71.9 |
| Republican | 106,734 | 28.1 |
| 379,617 | 100.0 | | |
| | | |
| County | Jared HuffmanDemocratic | Chris CoulombeRepublican | Margin | Total votes cast | | | |
| Del Norte | 4,445 | 43.28% | 5,826 | 56.72% | −1,381 | −13.45% | 10,271 |
| Humboldt | 40,870 | 65.35% | 21,666 | 34.65% | 19,204 | 30.71% | 62,536 |
| Marin | 112,694 | 80.09% | 28,012 | 19.91% | 84,682 | 60.18% | 140,706 |
| Mendocino | 24,262 | 63.73% | 13,808 | 36.27% | 10,454 | 27.46% | 38,070 |
| Sonoma (part) | 88,087 | 71.92% | 34,389 | 28.08% | 53,698 | 43.84% | 122,476 |
| Trinity | 2,525 | 45.43% | 3,033 | 54.57% | −508 | −9.14% | 5,558 |
The incumbent was Republican Kevin Kiley, who was elected with 53.2% of the vote in 2022.
Advanced to general
- Kevin Kiley (Republican), incumbent U.S. representative
- Jessica Morse (Democratic), former deputy secretary of the California Natural Resources Agency and runner-up for the 5th district in 2018
Eliminated in primary
- Robert Smith (no party preference), operational programs director
| Campaign finance reports as of February 14, 2024 | | | |
| Kevin Kiley (R) | $2,450,576 | $484,923 | $2,004,626 |
| Jessica Morse (D) | $805,745 | $349,729 | $660,378 |
| Source | Ranking | As of |
| The Cook Political Report | Likely R | February 2, 2023 |
| Inside Elections | March 10, 2023 | |
| Sabato's Crystal Ball | February 23, 2023 | |
| Elections Daily | March 22, 2024 | |
| CNalysis | Lean R | November 16, 2023 |
Primary results by county: Kiley—70–80% Kiley—60–70% Kiley—50–60% Morse—50–60% Morse—60–70%
| Primary election | | | |
| Republican | 137,397 | 55.9 |
| Democratic | 103,443 | 42.1 |
| No party preference | 5,007 | 2.0 |
| 245,847 | 100.0 | | |
| Republican | 234,246 | 55.5 |
| Democratic | 188,067 | 44.5 |
| 422,313 | 100.0 | | |
| | | |
| County | Kevin KileyRepublican | Jessica MorseDemocratic | Margin | Total votes cast | | | |
| Alpine | 263 | 36.28% | 462 | 63.72% | −199 | −27.45% | 725 |
| El Dorado (part) | 18,052 | 53.73% | 15,548 | 46.27% | 2,504 | 7.45% | 33,600 |
| Inyo | 4,660 | 53.69% | 4,019 | 46.31% | 641 | 7.39% | 8,679 |
| Mono | 2,503 | 42.37% | 3,405 | 57.63% | −902 | −15.27% | 5,908 |
| Nevada | 28,004 | 45.67% | 33,317 | 54.33% | −5,313 | −8.66% | 61,321 |
| Placer | 132,825 | 58.31% | 94,970 | 41.69% | 37,855 | 16.62% | 227,795 |
| Plumas | 6,044 | 60.88% | 3,883 | 39.12% | 2,161 | 21.77% | 9,927 |
| Sacramento (part) | 36,075 | 54.62% | 29,975 | 45.38% | 6,100 | 9.24% | 66,050 |
| Sierra | 1,115 | 64.12% | 624 | 35.88% | 491 | 28.23% | 1,739 |
| Yuba (part) | 4,705 | 71.62% | 1,864 | 28.38% | 2,841 | 43.25% | 6,569 |
The incumbent was Democrat Mike Thompson, who had represented the district since 2013 and was re-elected with 67.8% of the vote in 2022.
Advanced to general
- John Munn (Republican), former Davis Joint Unified School District trustee and perennial candidate
- Mike Thompson (Democratic), incumbent U.S. representative
Eliminated in primary
- Andrew Engdahl (Democratic), tech sales account executive and candidate for this district in 2022
- Niket Patwardhan (no party preference), software engineer
| Campaign finance reports as of February 14, 2024 | | | |
| Andrew Engdahl (D) | $1,587 | $4,028 | $666 |
| Mike Thompson (D) | $1,215,934 | $1,608,631 | $1,235,136 |
| John Munn (R) | $59,561 | $52,560 | $7,000 |
| Niket Patwardhan (NPP) | $9,019 | $7,347 | $1,671 |
| Source | Ranking | As of |
| The Cook Political Report | Solid D | February 2, 2023 |
| Inside Elections | March 10, 2023 | |
| Sabato's Crystal Ball | Safe D | February 23, 2023 |
| Elections Daily | February 5, 2024 | |
| CNalysis | Solid D | November 16, 2023 |
Primary results by county: Thompson—70–80% Thompson—60–70% Thompson—50–60% Munn—40–50%
| Primary election | | | |
| Democratic | 120,736 | 62.5 |
| Republican | 58,787 | 30.5 |
| Democratic | 11,492 | 6.0 |
| No party preference | 2,116 | 1.1 |
| 193,131 | 100.0 | | |
| Democratic | 227,730 | 66.5 |
| Republican | 114,950 | 33.5 |
| 342,680 | 100.0 | | |
| | | |
| County | Mike ThompsonDemocratic | John MunnRepublican | Margin | Total votes cast | | | |
| Lake | 13,970 | 53.18% | 12,299 | 46.82% | 1,671 | 6.36% | 26,269 |
| Napa | 45,317 | 70.14% | 19,294 | 29.86% | 26,023 | 40.28% | 64,611 |
| Solano (part) | 31,404 | 50.01% | 31,394 | 49.99% | 10 | 0.02% | 62,798 |
| Sonoma (part) | 89,324 | 74.36% | 30,793 | 25.64% | 58,531 | 48.73% | 120,117 |
| Yolo (part) | 47,715 | 69.27% | 21,170 | 30.73% | 26,545 | 38.54% | 68,885 |
The incumbent was Republican Tom McClintock, who had represented the district since 2009 and was re-elected with 61.3% of the vote in 2022.
Advanced to general
- Mike Barkley (Democratic), attorney, perennial candidate, and runner-up for this district in 2022
- Tom McClintock (Republican), incumbent U.S. representative
Eliminated in primary
- Steve Wozniak (no party preference), freelance writer and candidate for this district in 2022 (no relation to Apple cofounder Steve Wozniak)
| Campaign finance reports as of February 14, 2024 | | | |
| Tom McClintock (R) | $633,193 | $638,946 | $131,787 |
| Mike Barkley (D) | $31,203 | $27,281 | $4,000 |
| Source | Ranking | As of |
| The Cook Political Report | Solid R | February 2, 2023 |
| Inside Elections | March 10, 2023 | |
| Sabato's Crystal Ball | Safe R | February 23, 2023 |
| Elections Daily | February 5, 2024 | |
| CNalysis | Solid R | November 16, 2023 |
Primary results by county: McClintock—60–70% McClintock—50–60%
| Primary election | | | |
| Republican | 118,958 | 58.5 |
| Democratic | 66,680 | 32.8 |
| No party preference | 17,636 | 8.7 |
| 203,274 | 100.0 | | |
| Republican | 227,643 | 61.8 |
| Democratic | 140,919 | 38.2 |
| 368,562 | 100.0 | | |
| | | |
| County | Tom McClintockRepublican | Mike BarkleyDemocratic | Margin | Total votes cast | | | |
| Amador | 14,607 | 66.57% | 7,336 | 33.43% | 7,271 | 33.14% | 21,943 |
| Calaveras | 17,051 | 66.06% | 8,761 | 33.94% | 8,290 | 32.12% | 25,812 |
| El Dorado (part) | 46,898 | 61.90% | 28,862 | 38.10% | 18,036 | 23.81% | 75,760 |
| Fresno (part) | 34,642 | 59.50% | 23,578 | 40.50% | 11,064 | 19.00% | 58,220 |
| Madera (part) | 13,128 | 67.36% | 6,362 | 32.64% | 6,766 | 34.72% | 19,490 |
| Mariposa | 5,786 | 62.49% | 3,473 | 37.51% | 2,313 | 24.98% | 9,259 |
| Stanislaus (part) | 77,587 | 59.69% | 52,390 | 40.31% | 25,197 | 19.39% | 129,977 |
| Tuolumne | 17,944 | 63.86% | 10,157 | 36.14% | 7,787 | 27.71% | 28,101 |
The incumbent was Democrat Ami Bera, who had represented the district since 2013 and was re-elected with 55.9% of the vote in 2022.
Advanced to general
- Ami Bera (Democratic), incumbent U.S. representative
- Christine Bish (Republican), realtor, runner-up for this district in 2020 and candidate in 2022
Eliminated in primary
- Adam Barajas (Democratic), retail worker
- Craig DeLuz (Republican), Robla school board member
- Chris Richardson (Green), engineer and candidate for this district in 2018, 2020, and 2022
- Ray Riehle (Republican), businessman
Withdrawn
| Campaign finance reports as of February 14, 2024 | | | |
| Ami Bera (D) | $661,944 | $611,725 | $1,785,351 |
| Christine Bish (R) | $83,838 | $81,862 | $2,004 |
| Craig DeLuz (R) | $30,580 | $29,008 | $1,572 |
| Ray Riehle (R) | $47,775 | $41,338 | $6,436 |
| Source | Ranking | As of |
| The Cook Political Report | Solid D | February 2, 2023 |
| Inside Elections | March 10, 2023 | |
| Sabato's Crystal Ball | Safe D | February 23, 2023 |
| Elections Daily | February 5, 2024 | |
| CNalysis | Solid D | November 16, 2023 |
Primary results by precinct: Bera—30–40% Bera—40–50% Bera—50–60% Bera—60–70% Bera—70–80% Bera—>90% Bish—30–40% Bish—80–90% Barajas—>90% Tie—50% No data
| Primary election | | | |
| Democratic | 76,605 | 51.8 |
| Republican | 29,628 | 20.1 |
| Republican | 15,779 | 10.7 |
| Republican | 14,361 | 9.7 |
| Democratic | 8,711 | 5.9 |
| Green | 2,661 | 1.8 |
| 147,745 | 100.0 | | |
| Democratic | 165,408 | 57.6 |
| Republican | 121,664 | 42.4 |
| 287,072 | 100.0 | | |
| | | |
The incumbent was Democrat Doris Matsui, who had represented the district since 2013 and was re-elected with 68.3% of the vote in 2022.
Advanced to general
- Doris Matsui (Democratic), incumbent U.S. representative
- Tom Silva (Republican), former Galt Joint Union Elementary School District trustee
Eliminated in primary
- David Mandel (Democratic), attorney
| Campaign finance reports as of February 14, 2024 | | | |
| David Mandel (D) | $72,240 | $49,283 | $13,517 |
| Doris Matsui (D) | $638,291 | $637,713 | $181,918 |
| Tom Silva (R) | $4,500 | $1,662 | $2,837 |
| Source | Ranking | As of |
| The Cook Political Report | Solid D | February 2, 2023 |
| Inside Elections | March 10, 2023 | |
| Sabato's Crystal Ball | Safe D | February 23, 2023 |
| Elections Daily | February 5, 2024 | |
| CNalysis | Solid D | November 16, 2023 |
| Primary election | | | |
| Democratic | 89,485 | 56.5 |
| Republican | 48,943 | 30.9 |
| Democratic | 20,057 | 12.7 |
| 158,485 | 100.0 | | |
| Democratic | 197,429 | 66.8 |
| Republican | 98,341 | 33.2 |
| 295,770 | 100.0 | | |
| | | |
| County | Doris MatsuiDemocratic | Tom SilvaRepublican | Margin | Total votes cast | | | |
| Sacramento (part) | 183,642 | 67.01% | 90,406 | 32.99% | 93,236 | 34.02% | 274,048 |
| Solano (part) | 28 | 60.87% | 18 | 39.13% | 10 | 21.74% | 46 |
| Yolo (part) | 13,759 | 63.48% | 7,917 | 36.52% | 5,842 | 26.95% | 21,676 |
The incumbent was Democrat John Garamendi, who had represented the district since 2013 and was re-elected with 75.7% of the vote in 2022.
Advanced to general
- John Garamendi (Democratic), incumbent U.S. representative
- Rudy Recile (Republican), consultant and runner-up for this district in 2022
| Campaign finance reports as of February 14, 2024 | | | |
| John Garamendi (D) | $542,502 | $488,936 | $1,175,013 |
| Rudy Recile (R) | $10,852 | $10,496 | $850 |
| Source | Ranking | As of |
| The Cook Political Report | Solid D | February 2, 2023 |
| Inside Elections | March 10, 2023 | |
| Sabato's Crystal Ball | Safe D | February 23, 2023 |
| Elections Daily | February 5, 2024 | |
| CNalysis | Solid D | November 16, 2023 |
| Primary election | | | |
| Democratic | 100,193 | 77.0 |
| Republican | 29,944 | 23.0 |
| 130,137 | 100.0 | | |
| Democratic | 201,962 | 74.0 |
| Republican | 71,068 | 26.0 |
| 273,030 | 100.0 | | |
| | | |
| County | John GaramendiDemocratic | Rudy RecileRepublican | Margin | Total votes cast | | | |
| Contra Costa (part) | 117,827 | 78.03% | 33,182 | 21.97% | 84,645 | 56.05% | 151,009 |
| Solano (part) | 84,135 | 68.95% | 37,886 | 31.05% | 46,249 | 37.90% | 122,021 |
The incumbent was Democrat Josh Harder, who had represented the district since 2019 and was re-elected with 54.9% of the vote in 2022.
Advanced to general
- Josh Harder (Democratic), incumbent U.S. representative
- Kevin Lincoln (Republican), mayor of Stockton (2021–present)
Eliminated in primary
- Khalid Jafri (Republican), retired engineer and Democratic candidate for this district in 2022
- John McBride (Republican), strength and conditioning coach
Withdrawn
- Brett Dood (Republican), pastor (endorsed Lincoln)
| Campaign finance reports as of February 14, 2024 | | | |
| Josh Harder (D) | $2,402,615 | $767,804 | $2,784,412 |
| Kevin Lincoln (R) | $648,712 | $424,366 | $224,346 |
| John McBride (R) | $11,315 | $10,965 | $349 |
| Source | Ranking | As of |
| The Cook Political Report | Likely D | February 2, 2023 |
| Inside Elections | June 20, 2024 | |
| Sabato's Crystal Ball | February 23, 2023 | |
| Elections Daily | Lean D | March 22, 2024 |
| CNalysis | Solid D | November 16, 2023 |
| Poll source | Date(s)administered | Samplesize | Marginof error | JoshHarder (D) | KevinLincoln (R) | Undecided |
| NMB Research (R) | February 18–20, 2024 | 400 (LV) | ± 2.0% | 40% | 44% | 16% |
| Primary election | | | |
| Democratic | 60,978 | 49.7 |
| Republican | 36,744 | 30.0 |
| Republican | 15,707 | 12.8 |
| Republican | 9,150 | 7.5 |
| 122,579 | 100.0 | | |
| Democratic | 130,183 | 51.8 |
| Republican | 121,174 | 48.2 |
| 251,357 | 100.0 | | |
| | | |
| County | Josh HarderDemocratic | Kevin LincolnRepublican | Margin | Total votes cast | | | |
| Contra Costa (part) | 3,809 | 43.26% | 4,995 | 56.74% | −1,186 | −13.47% | 8,804 |
| San Joaquin (part) | 126,146 | 52.20% | 115,515 | 47.80% | 10,631 | 4.40% | 241,661 |
| Stanislaus (part) | 228 | 25.56% | 664 | 74.44% | −436 | −48.88% | 892 |
The incumbent was Democrat Mark DeSaulnier, who had represented the district since 2015 and was re-elected with 78.9% of the vote in 2022.
Advanced to general
- Mark DeSaulnier (Democratic), incumbent U.S. representative
- Katherine Piccinini (Republican), property manager and write-in candidate for this district in 2022
Eliminated in primary
- Nolan Chen (Republican), systems engineer
- Mohamed Elsherbini (no party preference), travel agency owner
- Joe Sweeney (no party preference), businessman
| Campaign finance reports as of February 14, 2024 | | | |
| Mark DeSaulnier (D) | $321,343 | $271,401 | $625,306 |
| Nolan Chen (R) | $5,760 | $3,274 | $2,485 |
| Katherine Piccinini (R) | $11,426 | $9,708 | $1,717 |
| Joe Sweeney (I) | $14,285 | $1,827 | $12,457 |
| Source | Ranking | As of |
| The Cook Political Report | Solid D | February 2, 2023 |
| Inside Elections | March 10, 2023 | |
| Sabato's Crystal Ball | Safe D | February 23, 2023 |
| Elections Daily | February 5, 2024 | |
| CNalysis | Solid D | November 16, 2023 |
| Primary election | | | |
| Democratic | 121,334 | 65.5 |
| Republican | 34,900 | 18.9 |
| Republican | 19,465 | 10.5 |
| No party preference | 7,609 | 4.1 |
| No party preference | 1,825 | 1.0 |
| 185,133 | 100.0 | | |
| Democratic | 242,325 | 66.5 |
| Republican | 122,219 | 33.5 |
| 364,544 | 100.0 | | |
| | | |
| County | Mark DeSaulnierDemocratic | Katherine PiccininiRepublican | Margin | Total votes cast | | | |
| Alameda (part) | 12,354 | 67.37% | 5,983 | 32.63% | 6,371 | 34.74% | 18,337 |
| Contra Costa (part) | 229,971 | 66.43% | 116,236 | 33.57% | 113,735 | 32.85% | 346,207 |
The incumbent was Democrat Nancy Pelosi, who was re-elected with 84.0% of the vote in 2022. Later that year, Pelosi announced she would step down from House leadership. Pelosi announced that she would seek re-election in 2024.
Advanced to general
- Bruce Lou (Republican), business owner
- Nancy Pelosi (Democratic), incumbent U.S. representative and former Speaker of the House
Eliminated in primary
- Jason Boyce (Democratic), software engineer
- Eve Del Castello (Republican), business consultant and candidate for this district in 2022
- Marjorie Mikels (Democratic), attorney
- Larry Nichelson (Republican), retired teacher
- Bianca Von Krieg (Democratic), actress and candidate for this district in 2022
- Jason Zeng (Republican), data engineer
| Campaign finance reports as of February 14, 2024 | | | |
| Marjorie Mikels (D) | $10,000 | $1,200 | $8,000 |
| Nancy Pelosi (D) | $5,027,157 | $5,005,162 | $3,615,723 |
| Bruce Lou (R) | $51,519 | $38,550 | $12,968 |
| Jason Zeng (R) | $39,286 | $5,863 | $33,422 |
| Source | Ranking | As of |
| The Cook Political Report | Solid D | February 2, 2023 |
| Inside Elections | March 10, 2023 | |
| Sabato's Crystal Ball | Safe D | February 23, 2023 |
| Elections Daily | February 5, 2024 | |
| CNalysis | Solid D | November 16, 2023 |
Primary results by precinct: Pelosi—40–50% Pelosi—50–60% Pelosi—60–70% Pelosi—70–80% Pelosi—80–90% No data
| Primary election | | | |
| Democratic | 138,285 | 73.3 |
| Republican | 16,285 | 8.6 |
| Democratic | 9,363 | 5.0 |
| Democratic | 7,634 | 4.0 |
| Republican | 6,607 | 3.5 |
| Democratic | 4,325 | 2.3 |
| Republican | 3,482 | 1.8 |
| Republican | 2,751 | 1.5 |
| 188,732 | 100.0 | | |
| Democratic | 274,796 | 81.0 |
| Republican | 64,315 | 19.0 |
| 339,111 | 100.0 | | |
| | | |
The incumbent was Democrat Barbara Lee, who was re-elected with 90.5% of the vote in 2022. She did not seek re-election, instead choosing to run for the U.S. Senate.
Advanced to general
- Lateefah Simon (Democratic), president of the Bay Area Rapid Transit Board of Directors and California State University trustee
- Jennifer Tran (Democratic), California State University East Bay professor and president of the Oakland Vietnamese Chamber of Commerce
Eliminated in primary
- Tony Daysog (Democratic), vice mayor of Alameda and candidate for the 10th district in 2014
- Glenn Kaplan (Democratic), bar owner and candidate for this district in 2022
- Ned Nuerge (Republican), retired driving instructor, LaRouchite, and candidate for this district in 2022
- Abdur Sikder (Democratic), San Francisco State University professor
- Stephen Slauson (Republican), electrical engineer and runner-up for this district in 2022
- Andre Todd (Democratic), financial executive and former National Football League player
- Eric Wilson (Democratic), nonprofit employee and candidate for this district in 2022
Withdrawn
- Tim Sanchez (Democratic), Boeing executive
Declined
- Nikki Fortunato Bas (Democratic), president of the Oakland City Council
- Mia Bonta (Democratic), state assemblywoman from the 18th district (2021–present) (endorsed Simon)
- Dan Kalb (Democratic), Oakland city councilor from the 1st district (2013–present) (ran for state senate)
- Barbara Lee (Democratic), incumbent U.S. representative (ran for U.S. Senate)
- Libby Schaaf (Democratic), former mayor of Oakland (2015–2023) (endorsed Simon)
- Buffy Wicks (Democratic), state assemblywoman from the 14th district (2019–present) (endorsed Simon)
| Campaign finance reports as of February 14, 2024 | | | |
| Tony Daysog (D) | $18,760 | $18,298 | $461 |
| Abdur Sikder (D) | $21,938 | $18,366 | $3,571 |
| Lateefah Simon (D) | $1,110,109 | $836,790 | $273,318 |
| Jennifer Tran (D) | $148,095 | $97,686 | $50,408 |
| Source | Ranking | As of |
| The Cook Political Report | Solid D | February 2, 2023 |
| Inside Elections | March 10, 2023 | |
| Sabato's Crystal Ball | Safe D | February 23, 2023 |
| Elections Daily | February 5, 2024 | |
| CNalysis | Solid D | November 16, 2023 |
| Poll source | Date(s)administered | Samplesize | Marginof error | LateefahSimon (D) | JenniferTran (D) | Other | Undecided |
| USC/CSU | September 14–21, 2024 | 510 (LV) | ± 4.3% | 41% | 27% | 3% | 32% |
| Primary election | | | |
| Democratic | 86,031 | 55.9 |
| Democratic | 22,999 | 14.9 |
| Democratic | 17,222 | 11.2 |
| Republican | 9,710 | 6.3 |
| Democratic | 6,799 | 4.4 |
| Democratic | 4,252 | 2.8 |
| Democratic | 2,857 | 1.9 |
| Republican | 2,535 | 1.6 |
| Democratic | 1,632 | 1.1 |
| 154,037 | 100.0 | | |
| Democratic | 185,176 | 65.4 |
| Democratic | 97,849 | 34.6 |
| 283,025 | 100.0 | | |
| | | |
The incumbent was Republican John Duarte, who flipped the district and was elected with 50.2% of the vote in 2022. This was a rematch between the candidates from 2022 where Duarte previously defeated Gray by a slim margin. This was the closest House race in 2024 and one of the last to be called due to the close margin, California's state law allowing ballots to arrive a week after the election, and a high quantity of absentee votes which must be cured.
Ceres Courier erroneously declared Duarte the winner on November 13th claiming high confidence that the remaining vote total wouldn't allow Gray to overtake Duarte's lead of roughly 3,000 votes. Most networks declared Gray the winner in early December.
Republican Donald Trump carried the district by 5.4% in the concurrent presidential election.
Advanced to general
- John Duarte (Republican), incumbent U.S. representative
- Adam Gray (Democratic), former state assemblyman from the 21st district (2012–2022) and runner-up for this district in 2022
| Campaign finance reports as of February 14, 2024 | | | |
| John Duarte (R) | $2,205,578 | $743,978 | $1,487,118 |
| Adam Gray (D) | $786,855 | $372,845 | $468,384 |
| Poll source | Date(s)administered | Samplesize | Marginof error | JohnDuarte (R) | PhilArballo (D) | AdamGray (D) | Other/Undecided |
| RMG Research | November 14–19, 2023 | 300 (LV) | ± 5.7% | 21% | 2% | 21% | 55% |
| No. | Date | Host | Moderator | Link | Republican | Democratic |
| Oct. 25, 2024 | Central Valley Journalism CollaborativeKXJZThe Maddy InstituteUniversity of California, Merced | Kristin LamVictor PattonBrianna Vaccari | YouTube | P | P | |
| Oct. 31, 2024 | KTXL | Brian DormanNikki Laurenzo | KTXL | P | P | |
| Source | Ranking | As of |
| The Cook Political Report | Tossup | February 2, 2023 |
| Inside Elections | Tilt D (flip) | October 18, 2024 |
| Sabato's Crystal Ball | Lean D (flip) | November 4, 2024 |
| Elections Daily | Lean D (flip) | November 4, 2024 |
| CNalysis | Tilt D (flip) | November 4, 2024 |
| Poll source | Date(s)administered | Samplesize | Marginof error | JohnDuarte (R) | AdamGray (D) | Undecided |
| USC/CSU | September 14–21, 2024 | 311 (LV) | ± 5.6% | 45% | 46% | 9% |
Primary results by county: Duarte—60–70% Duarte—50–60% Gray—50–60%
| Primary election | | | |
| Republican | 47,219 | 54.9 |
| Democratic | 38,754 | 45.1 |
| 85,973 | 100.0 | | |
| Democratic | 105,554 | 50.04 |
| Republican | 105,367 | 49.96 |
| 210,921 | 100.00 | | |
| Democratic gain from Republican | | |
| County | John DuarteRepublican | Adam GrayDemocratic | Margin | Total votes cast | | | |
| Fresno (part) | 11,440 | 55.96% | 9,004 | 44.04% | −2,436 | −11.92% | 20,444 |
| Madera (part) | 19,187 | 57.11% | 14,410 | 42.89% | −4,777 | −14.22% | 33,597 |
| Merced | 40,253 | 48.55% | 42,652 | 51.45% | 2,399 | 2.89% | 82,905 |
| San Joaquin (part) | 6,995 | 46.45% | 8,064 | 53.55% | 1,069 | 7.10% | 15,059 |
| Stanislaus (part) | 27,492 | 46.66% | 31,424 | 53.34% | 3,932 | 6.67% | 58,916 |
The incumbent was Democrat Eric Swalwell, who had represented the district since 2013 and was re-elected with 69.3% of the vote in 2022.
Advanced to general
- Vin Kruttiventi (Republican), engineer
- Eric Swalwell (Democratic), incumbent U.S. representative
Eliminated in primary
- Alison Hayden (Republican), teacher and runner-up for this district in 2020 and 2022
- Luis Reynoso (Republican), Chabot–Las Positas Community College District trustee
| Campaign finance reports as of February 14, 2024 | | | |
| Eric Swalwell (D) | $2,658,863 | $2,563,768 | $723,694 |
| Vin Kruttiventi (R) | $668,973 | $399,455 | $269,518 |
| Source | Ranking | As of |
| The Cook Political Report | Solid D | February 2, 2023 |
| Inside Elections | March 10, 2023 | |
| Sabato's Crystal Ball | Safe D | February 23, 2023 |
| Elections Daily | February 5, 2024 | |
| CNalysis | Solid D | November 16, 2023 |
| Primary election | | | |
| Democratic | 84,075 | 66.7 |
| Republican | 22,134 | 17.6 |
| Republican | 11,948 | 9.5 |
| Republican | 7,812 | 6.2 |
| 125,969 | 100.0 | | |
| Democratic | 187,263 | 67.8 |
| Republican | 89,125 | 32.2 |
| 276,388 | 100.0 | | |
| | | |
The incumbent was Democrat Kevin Mullin, who had represented the district since 2023. He was elected with 55.5% of the vote in 2022, running against another Democrat.
Advanced to general
- Anna Cheng Kramer (Republican), housing policy advisor
- Kevin Mullin (Democratic), incumbent U.S. representative
| Campaign finance reports as of February 14, 2024 | | | |
| Kevin Mullin (D) | $454,937 | $440,677 | $36,794 |
| Anna Kramer (R) | $39,080 | $12,651 | $26,429 |
| Source | Ranking | As of |
| The Cook Political Report | Solid D | February 2, 2023 |
| Inside Elections | March 10, 2023 | |
| Sabato's Crystal Ball | Safe D | February 23, 2023 |
| Elections Daily | February 5, 2024 | |
| CNalysis | Solid D | November 16, 2023 |
| Primary election | | | |
| Democratic | 109,172 | 75.3 |
| Republican | 35,868 | 24.7 |
| 145,040 | 100.0 | | |
| Democratic | 211,648 | 73.1 |
| Republican | 77,896 | 26.9 |
| 289,544 | 100.0 | | |
| | | |
| County | Kevin MullinDemocratic | Anna Cheng KramerRepublican | Margin | Total votes cast | | | |
| San Francisco (part) | 25,287 | 69.95% | 10,863 | 30.05% | 14,424 | 39.90% | 36,150 |
| San Mateo (part) | 186,361 | 73.55% | 67,033 | 26.45% | 119,328 | 47.09% | 253,394 |
The incumbent was Democrat Anna Eshoo, who was re-elected with 57.8% of the vote in 2022, running against another Democrat. She did not seek re-election. Former San Jose mayor Sam Liccardo advanced to the general election a week after the primary. His challenger was state assemblyman Evan Low.
By April 3, Low and Santa Clara County supervisor Joe Simitian were tied with 30,249 votes each, and were expected to advance to the general election under a stipulation by California elections code regarding a second-place tie in primary elections. However, a recount was requested by two voters shortly thereafter. The recount request was controversial, with Low's campaign accusing Liccardo of being behind it. At the conclusion of the recount on May 1, Low ultimately edged out Simitian by a margin of 5 votes, with Low gaining 12 votes and Simitian 7.
Advanced to general
- Sam Liccardo (Democratic), former mayor of San Jose (2015–2023)
- Evan Low (Democratic), state assemblyman from the 26th district (2014–present)
Initially advanced to general but eliminated after recount
- Joe Simitian (Democratic), Santa Clara County supervisor from the 5th district (1996–2000, 2013–present) and former state senator from the 11th district (2004–2012)
Eliminated in primary
- Joby Bernstein (Democratic), financial advisor and graduate student
- Peter Dixon (Democratic), cybersecurity executive and former U.S. State Department staffer
- Rishi Kumar (Democratic), former Saratoga city councilor and runner-up for this district in 2020 and 2022
- Julie Lythcott-Haims (Democratic), Palo Alto city councilor
- Ahmed Mostafa (Democratic), attorney
- Peter Ohtaki (Republican), former mayor of Menlo Park and candidate for this district in 2022
- Karl Ryan (Republican), businessman
- Greg Tanaka (Democratic), Palo Alto city councilor and candidate for this district in 2022
Declined
- Josh Becker (Democratic), state senator from the 13th district (2020–present)
- Marc Berman (Democratic), state assemblyman from the 23rd district (2016–present)
- Anna Eshoo (Democratic), incumbent U.S. representative (endorsed Simitian)
| Source | Ranking | As of |
| The Cook Political Report | Solid D | February 2, 2023 |
| Inside Elections | March 10, 2023 | |
| Sabato's Crystal Ball | Safe D | February 23, 2023 |
| Elections Daily | February 5, 2024 | |
| CNalysis | Solid D | November 16, 2023 |
| Primary election | | | |
| Democratic | 38,489 | 21.1 |
| Democratic | 30,249 | 16.6 |
| Democratic | 30,249 | 16.6 |
| Republican | 23,275 | 12.8 |
| Democratic | 14,673 | 8.1 |
| Democratic | 12,377 | 6.8 |
| Republican | 11,557 | 6.3 |
| Democratic | 11,383 | 6.2 |
| Democratic | 5,811 | 3.2 |
| Democratic | 2,421 | 1.3 |
| Democratic | 1,651 | 0.9 |
| 182,135 | 100.0 | | |
| Party | Candidate | Votes | % | .mw-parser-output .tooltip-dotted{border-bottom:1px dotted;cursor:help}±% |
| Democratic | 38,492 | 21.1 | −0.005 |
| Democratic | 30,261 | 16.6 | +0.002 |
| Democratic | 30,256 | 16.6 | −0.001 |
| Republican | 23,283 | 12.8 | +0.001 |
| Democratic | 14,677 | 8.1 | −0.000 |
| Democratic | 12,383 | 6.8 | +0.001 |
| Republican | 11,563 | 6.3 | +0.001 |
| Democratic | 11,386 | 6.2 | −0.000 |
| Democratic | 5,814 | 3.2 | +0.001 |
| Democratic | 2,421 | 1.3 | −0.000 |
| Democratic | 1,652 | 0.9 | +0.000 |
| 182,188 | 100.0 | | | |
| Democratic | 179,583 | 58.2 | N/A |
| Democratic | 128,893 | 41.8 | N/A |
| 308,476 | 100.0 | | | |
| | | | |
The incumbent was Democrat Ro Khanna, who was re-elected with 70.9% of the vote in 2022. Khanna had expressed interest in running for U.S. Senate, but instead chose not to run and endorsed Barbara Lee.
Advanced to general
- Anita Chen (Republican), teacher
- Ro Khanna (Democratic), incumbent U.S. representative
Eliminated in primary
- Joe Dehn (Libertarian), chair of the Santa Clara County Libertarian Party, former secretary of the Libertarian National Committee, and candidate for this district in 2020 and 2022
- Mario Ramirez (Democratic), photographer
- Ritesh Tandon (Democratic), software engineer and Republican runner-up for this district in 2020 and 2022
| Campaign finance reports as of February 14, 2024 | | | |
| Ro Khanna (D) | $6,592,854 | $2,367,495 | $9,513,880 |
| Ritesh Tandon (D) | $20,147 | $8,224 | $12,233 |
| Anita Chen (R) | $15,639 | $7,431 | $8,208 |
| Source | Ranking | As of |
| The Cook Political Report | Solid D | February 2, 2023 |
| Inside Elections | March 10, 2023 | |
| Sabato's Crystal Ball | Safe D | February 23, 2023 |
| Elections Daily | February 5, 2024 | |
| CNalysis | Solid D | November 16, 2023 |
| Primary election | | | |
| Democratic | 74,004 | 62.9 |
| Republican | 31,568 | 26.8 |
| Democratic | 5,738 | 4.9 |
| Democratic | 4,498 | 3.8 |
| Libertarian | 1,839 | 1.6 |
| 117,647 | 100.0 | | |
| Democratic | 172,462 | 67.7 |
| Republican | 82,415 | 32.3 |
| 254,877 | 100.0 | | |
| | | |
| County | Ro KhannaDemocratic | Anita ChenRepublican | Margin | Total votes cast | | | |
| Alameda (part) | 26,121 | 65.84% | 13,555 | 34.16% | 12,566 | 31.67% | 39,676 |
| Santa Clara (part) | 146,341 | 68.00% | 68,860 | 32.00% | 77,481 | 36.00% | 215,201 |
The incumbent was Democrat Zoe Lofgren, who was re-elected with 65.8% of the vote in 2022.
Advanced to general
- Peter Hernandez (Republican), former chair of the San Benito County Board of Supervisors and runner-up for this district in 2022
- Zoe Lofgren (Democratic), incumbent U.S. representative
Eliminated in primary
- Luele Kifle (Democratic), IT consultant
- Lawrence Milan (Democratic), bartender
- Charlene Nijmeh (Democratic), chair of the Muwekma Ohlone Tribe
Declined
- Sam Liccardo (Democratic), former mayor of San Jose (running in the 16th district)
| Campaign finance reports as of February 14, 2024 | | | |
| Zoe Lofgren (D) | $1,380,968 | $1,419,890 | $372,448 |
| Charlene Nijmeh (D) | $187,518 | $140,803 | $46,714 |
| Peter Hernandez (R) | $93,247 | $88,484 | $7,062 |
| Source | Ranking | As of |
| The Cook Political Report | Solid D | February 2, 2023 |
| Inside Elections | March 10, 2023 | |
| Sabato's Crystal Ball | Safe D | February 23, 2023 |
| Elections Daily | February 5, 2024 | |
| CNalysis | Solid D | November 16, 2023 |
| Primary election | | | |
| Democratic | 49,370 | 51.2 |
| Republican | 31,665 | 32.8 |
| Democratic | 10,631 | 11.0 |
| Democratic | 2,714 | 2.8 |
| Democratic | 2,034 | 2.1 |
| 96,414 | 100.0 | | |
| Democratic | 147,674 | 64.6 |
| Republican | 80,832 | 35.4 |
| 228,506 | 100.0 | | |
| | | |
| County | Zoe LofgrenDemocratic | Peter HernandezRepublican | Margin | Total votes cast | | | |
| Monterey (part) | 39,856 | 61.85% | 24,585 | 38.15% | 15,271 | 23.70% | 64,441 |
| San Benito | 14,803 | 54.98% | 12,119 | 45.02% | 2,684 | 9.97% | 26,922 |
| Santa Clara (part) | 79,781 | 67.38% | 38,620 | 32.62% | 41,161 | 34.76% | 118,401 |
| Santa Cruz (part) | 13,234 | 70.61% | 5,508 | 29.39% | 7,726 | 41.22% | 18,742 |
The incumbent was Democrat Jimmy Panetta, who had represented the district since 2017 and was re-elected with 68.8% of the vote in 2022.
Advanced to general
- Jason Anderson (Republican), auto repair shop owner
- Jimmy Panetta (Democratic), incumbent U.S. representative
Eliminated in primary
- Sean Dougherty (Green), engineer
| Campaign finance reports as of February 14, 2024 | | | |
| Jimmy Panetta (D) | $1,776,745 | $752,004 | $3,205,151 |
| Jason Anderson (R) | $13,024 | $1,276 | $11,748 |
| Sean Dougherty (G) | $6,506 | $3,716 | $2,789 |
| Source | Ranking | As of |
| The Cook Political Report | Solid D | February 2, 2023 |
| Inside Elections | March 10, 2023 | |
| Sabato's Crystal Ball | Safe D | February 23, 2023 |
| Elections Daily | February 5, 2024 | |
| CNalysis | Solid D | November 16, 2023 |
| Primary election | | | |
| Democratic | 132,711 | 65.0 |
| Republican | 58,285 | 28.6 |
| Green | 13,080 | 6.4 |
| 204,076 | 100.0 | | |
| Democratic | 252,458 | 69.3 |
| Republican | 111,862 | 30.7 |
| 364,320 | 100.0 | | |
| | | |
| County | Jimmy PanettaDemocratic | Jason AndersonRepublican | Margin | Total votes cast | | | |
| Monterey (part) | 58,462 | 73.08% | 21,532 | 26.92% | 36,930 | 46.17% | 79,994 |
| San Luis Obispo (part) | 24,203 | 46.22% | 28,162 | 53.78% | −3,959 | −7.56% | 52,365 |
| Santa Clara (part) | 80,447 | 66.71% | 40,149 | 33.29% | 40,298 | 33.42% | 120,596 |
| Santa Cruz (part) | 89,346 | 80.23% | 22,019 | 19.77% | 67,327 | 60.46% | 111,365 |
The incumbent was Republican Kevin McCarthy, who was re-elected with 67.2% of the vote in 2022. McCarthy resigned on December 31, 2023, after his removal as Speaker of the House. A special election was held in May 2024 to fill McCarthy's vacant seat, which was won by Vince Fong, a state assemblyman who had formerly served as McCarthy's district director.
Advanced to general
- Mike Boudreaux (Republican), Tulare County sheriff and runner-up in the May 2024 special election for this district (withdrew July 2024, endorsed Fong)
- Vince Fong (Republican), incumbent U.S. representative
Eliminated in primary
- James Cardoza (no party preference), realtor (write-in)
- Ben Dewell (no party preference), meteorologist and Democratic candidate for this district in 2022
- Stan Ellis (Republican), farmer
- Kyle Kirkland (Republican), casino owner and chairman of the board for Fresno Chaffee Zoo
- Kelly Kulikoff (Republican), mayor of California City
- Andy Morales (Democratic), security officer
- Matt Stoll (Republican), landscaping business owner and candidate for the 21st district in 2022
- Marisa Wood (Democratic), teacher and runner-up for this district in 2022
Withdrawn
- John Burrows (Democratic), spokesman for Fresno city councilor Nelson Esparza (endorsed Wood)
- TJ Esposito (no party preference), businessman (remained on ballot)
- David Giglio (Republican), businessman and candidate for the 13th district in 2022 (endorsed Boudreaux, remained on ballot)
- Kevin McCarthy, former U.S. Representative and former Speaker of the House (endorsed Fong)
Declined
- Garry Bredefeld (Republican), Fresno city councilor (ran for the Fresno County Board of Supervisors)
- Tal Eslick (Republican), political consultant and former chief of staff for U.S. Representative David Valadao
- Shannon Grove (Republican), state senator for the 12th district (2018–present) and former senate minority leader (2019–2021)
- Devon Mathis (Republican), state assemblyman for the 33rd district (2014–present)
- Jim Patterson (Republican), state assemblyman for the 32nd district (2016–present), former mayor of Fresno (1993–2001), and candidate for this district in 2002 and the 9th district in 2010
- Cole Rajewski (Republican), political consultant and former chief of staff for U.S. Representative David Valadao
- Pete Vander Poel (Republican), Tulare County supervisor (ran for re-election)
| Campaign finance reports as of February 14, 2024 | | | |
| Mike Boudreaux (R) | $280,633 | $155,635 | $124,997 |
| Vince Fong (R) | $768,246 | $613,008 | $155,237 |
| Kyle Kirkland (R) | $289,791 | $274,809 | $14,981 |
| Matt Stoll (R) | $20,100 | $3,457 | $16,642 |
| Andy Morales (D) | $142,062 | $140,139 | $1,923 |
| Marisa Wood (D) | $71,955 | $36,844 | $39,608 |
| Ben Dewell (NPP) | $1,785 | $1,742 | $605 |
| Source | Ranking | As of |
| The Cook Political Report | Solid R | February 2, 2023 |
| Inside Elections | March 10, 2023 | |
| Sabato's Crystal Ball | Safe R | February 23, 2023 |
| Elections Daily | February 5, 2024 | |
| CNalysis | Solid R | November 16, 2023 |
Primary results by county: Fong—50–60% Fong—30–40% Boudreaux—30–40% Boudreaux—50–60%
| Primary election | | | |
| Republican | 66,160 | 41.9 |
| Republican | 37,883 | 24.0 |
| Democratic | 33,509 | 21.2 |
| Republican | 6,429 | 4.1 |
| Democratic | 4,381 | 2.8 |
| Republican | 3,252 | 2.1 |
| Republican | 2,224 | 1.4 |
| No party preference | 1,509 | 1.0 |
| Republican | 1,131 | 0.7 |
| Republican | 724 | 0.5 |
| No party preference | 541 | 0.3 |
| No party preference | 9 | 0.0 |
| 157,752 | 100.0 | | |
| Republican | 187,862 | 65.1 |
| Republican | 100,926 | 34.9 |
| 288,788 | 100.0 | | |
| | | |
| County | Vince FongRepublican | Mike BoudreauxRepublican | Margin | Total votes cast | | | |
| Fresno (part) | 46,702 | 59.83% | 31,350 | 40.17% | 15,352 | 19.67% | 78,052 |
| Kern (part) | 110,314 | 74.16% | 38,440 | 25.84% | 71,874 | 48.32% | 148,754 |
| Kings (part) | 10,402 | 53.74% | 8,954 | 46.26% | 1,448 | 7.48% | 19,356 |
| Tulare (part) | 20,444 | 47.96% | 22,182 | 52.04% | −1,738 | −4.08% | 42,626 |
The incumbent was Democrat Jim Costa, who had represented the district since 2005 and was re-elected with 54.0% of the vote in 2022. Costa won re-election by 5.2 percentage points, a much narrower margin than what was predicted by pundits and outlets.
Advanced to general
- Jim Costa (Democratic), incumbent U.S. representative
- Michael Maher (Republican), aviation business owner and runner-up for this district in 2022
| Campaign finance reports as of February 14, 2024 | | | |
| Jim Costa (D) | $917,344 | $478,139 | $828,283 |
| Michael Maher (R) | $307,141 | $208,992 | $100,372 |
| Source | Ranking | As of |
| The Cook Political Report | Solid D | February 2, 2023 |
| Inside Elections | March 10, 2023 | |
| Sabato's Crystal Ball | Safe D | February 23, 2023 |
| Elections Daily | Likely D | March 22, 2024 |
| CNalysis | Solid D | November 16, 2023 |
| Primary election | | | |
| Democratic | 42,697 | 53.0 |
| Republican | 37,935 | 47.0 |
| 80,632 | 100.0 | | |
| Democratic | 102,798 | 52.6 |
| Republican | 92,733 | 47.4 |
| 195,531 | 100.0 | | |
| | | |
| County | Jim CostaDemocratic | Michael MaherRepublican | Margin | Total votes cast | | | |
| Fresno (part) | 83,515 | 56.12% | 65,297 | 43.88% | 18,218 | 12.24% | 148,812 |
| Tulare (part) | 19,283 | 41.27% | 27,436 | 58.73% | −8,153 | −17.45% | 46,719 |
The incumbent was Republican David Valadao, who was re-elected with 51.6% of the vote in 2022.
Advanced to general
- Rudy Salas (Democratic), former state assemblyman from the 32nd district (2012–2022) and runner-up for this district in 2022
- David Valadao (Republican), incumbent U.S. representative
Eliminated in primary
- Melissa Hurtado (Democratic), state senator from the 16th district (2018–present)
- Chris Mathys (Republican), former Fresno city councilor (1997–2001) and candidate for this district in 2022
| Campaign finance reports as of June 30, 2024 | | | |
| Chris Mathys (R) | $337,867 | $337,142 | $1,225 |
| David Valadao (R) | $3,431,218 | $1,479,413 | $2,000,244 |
| Melissa Hurtado (D) | $84,532 | $84,162 | $369 |
| Rudy Salas (D) | $3,123,937 | $1,396,838 | $1,741,507 |
| Source | Ranking | As of |
| The Cook Political Report | Tossup | November 16, 2023 |
| Inside Elections | October 31, 2024 | |
| Sabato's Crystal Ball | Lean R | November 4, 2024 |
| Elections Daily | November 4, 2024 | |
| CNalysis | Tilt D (flip) | November 4, 2024 |
| Poll source | Date(s)administered | Samplesize | Marginof error | DavidValadao (R) | RudySalas (D) | Undecided |
| Emerson College | October 22–26, 2024 | 525 (LV) | ± 4.2% | 45% | 47% | 8% |
| Emerson College | September 23–26, 2024 | 350 (LV) | ± 5.2% | 45% | 45% | 10% |
| USC/CSU | September 14–21, 2024 | 263 (LV) | ± 6.1% | 44% | 47% | 9% |
| Normington, Petts & Associates (D) | August 25–27, 2024 | 400 (LV) | – | 44% | 46% | 10% |
| Change Research (D) | August 10–17, 2024 | 479 (LV) | ± 2.2% | 44% | 38% | 18% |
Primary results by county: Valadao—30–40% Salas—30–40%
| Primary election | | | |
| Republican | 20,479 | 32.7 |
| Democratic | 19,592 | 31.3 |
| Republican | 13,745 | 22.0 |
| Democratic | 8,733 | 14.0 |
| 62,549 | 100.0 | | |
| Republican | 89,484 | 53.4 |
| Democratic | 78,023 | 46.6 |
| 167,507 | 100.0 | | |
| | | |
| County | David ValadaoRepublican | Rudy SalasDemocratic | Margin | Total votes cast | | | |
| Kern (part) | 54,058 | 50.60% | 52,786 | 49.40% | 1,272 | 1.19% | 106,844 |
| Kings (part) | 10,841 | 56.89% | 8,214 | 43.11% | 2,627 | 13.79% | 19,055 |
| Tulare (part) | 24,585 | 59.09% | 17,023 | 40.91% | 7,562 | 18.17% | 41,608 |
The incumbent was Republican Jay Obernolte, who had represented the district since 2021 and was re-elected with 61.0% of the vote in 2022.
Advanced to general
- Derek Marshall (Democratic), community activist and runner-up for this district in 2022
- Jay Obernolte (Republican), incumbent U.S. representative
| Campaign finance reports as of February 14, 2024 | | | |
| Jay Obernolte (R) | $791,628 | $283,636 | $878,145 |
| Derek Marshall (D) | $336,761 | $266,088 | $84,924 |
| Source | Ranking | As of |
| The Cook Political Report | Solid R | February 2, 2023 |
| Inside Elections | March 10, 2023 | |
| Sabato's Crystal Ball | Safe R | February 23, 2023 |
| Elections Daily | February 5, 2024 | |
| CNalysis | Solid R | November 16, 2023 |
| Primary election | | | |
| Republican | 70,208 | 63.4 |
| Democratic | 40,477 | 36.6 |
| 110,685 | 100.0 | | |
| Republican | 159,286 | 60.1 |
| Democratic | 105,563 | 39.9 |
| 264,849 | 100.0 | | |
| | | |
| County | Jay ObernolteRepublican | Derek MarshallDemocratic | Margin | Total votes cast | | | |
| Kern (part) | 3,127 | 58.42% | 2,226 | 41.58% | 901 | 16.83% | 5,353 |
| Los Angeles (part) | 2,406 | 52.75% | 2,155 | 47.25% | 251 | 5.50% | 4,561 |
| San Bernardino (part) | 153,753 | 60.31% | 101,182 | 39.69% | 52,571 | 20.62% | 254,935 |
The incumbent was Democrat Salud Carbajal, who had represented the district since 2017 and was re-elected with 60.7% of the vote in 2022.
Advanced to general
- Salud Carbajal (Democratic), incumbent U.S. representative
- Thomas Cole (Republican), campaign data analyst
Eliminated in primary
- Helena Pasquarella (Democratic), teacher
| Campaign finance reports as of February 14, 2024 | | | |
| Salud Carbajal (D) | $1,258,354 | $672,803 | $2,689,537 |
| Thomas Cole (R) | $10,370 | $8,920 | $14,500 |
| Source | Ranking | As of |
| The Cook Political Report | Solid D | February 2, 2023 |
| Inside Elections | March 10, 2023 | |
| Sabato's Crystal Ball | Safe D | February 23, 2023 |
| Elections Daily | February 5, 2024 | |
| CNalysis | Solid D | November 16, 2023 |
| Primary election | | | |
| Democratic | 102,516 | 53.7 |
| Republican | 71,089 | 37.2 |
| Democratic | 17,293 | 9.1 |
| 190,898 | 100.0 | | |
| Democratic | 214,724 | 62.7 |
| Republican | 127,755 | 37.3 |
| 342,479 | 100.0 | | |
| | | |
| County | Salud CarbajalDemocratic | Thomas ColeRepublican | Margin | Total votes cast | | | |
| San Luis Obispo (part) | 57,345 | 60.98% | 36,690 | 39.02% | 20,655 | 21.97% | 94,035 |
| Santa Barbara | 114,298 | 63.53% | 65,628 | 36.47% | 48,670 | 27.05% | 179,926 |
| Ventura (part) | 43,081 | 62.88% | 25,437 | 37.12% | 17,644 | 25.75% | 68,518 |
The incumbent was Democrat Raul Ruiz, who had represented the district since 2013 and was re-elected with 57.4% of the vote in 2022.
Advanced to general
- Raul Ruiz (Democratic), incumbent U.S. representative
- Ian Weeks (Republican), financial planner
Eliminated in primary
- Ryan Dean Burkett (no party preference), retail worker
- Miguel Chapa (Republican), mortgage broker
- Oscar Ortiz (Democratic), Indio city councilor
- Ceci Truman (Republican), businesswoman and candidate for this district in 2022
| Campaign finance reports as of February 14, 2024 | | | |
| Oscar Ortiz (D) | $32,022 | $22,101 | $10,140 |
| Raul Ruiz (D) | $1,293,842 | $887,745 | $1,992,893 |
| Miguel Chapa (R) | $9,370 | $3,095 | $1,909 |
| Ceci Truman (R) | $112,573 | $84,004 | $28,569 |
| Ian Weeks (R) | $75,140 | $59,370 | $15,770 |
| Source | Ranking | As of |
| The Cook Political Report | Solid D | February 2, 2023 |
| Inside Elections | March 10, 2023 | |
| Sabato's Crystal Ball | Safe D | February 23, 2023 |
| Elections Daily | February 5, 2024 | |
| CNalysis | Solid D | November 16, 2023 |
| Primary election | | | |
| Democratic | 45,882 | 45.1 |
| Republican | 20,992 | 20.6 |
| Republican | 17,815 | 17.5 |
| Democratic | 10,171 | 10.0 |
| Republican | 5,856 | 5.7 |
| No party preference | 1,129 | 1.1 |
| 101,845 | 100.0 | | |
| Democratic | 137,837 | 56.3 |
| Republican | 107,194 | 43.7 |
| 245,031 | 100.0 | | |
| | | |
| County | Raul RuizDemocratic | Ian WeeksRepublican | Margin | Total votes cast | | | |
| Imperial | 29,554 | 56.12% | 23,105 | 43.88% | 6,449 | 12.25% | 52,659 |
| Riverside (part) | 107,574 | 56.45% | 82,998 | 43.55% | 24,576 | 12.90% | 190,572 |
| San Bernardino (part) | 709 | 39.39% | 1,091 | 60.61% | −382 | −21.22% | 1,800 |
The incumbent was Democrat Julia Brownley, who had represented the district since 2013 and was re-elected with 54.5% of the vote in 2022.
Advanced to general
- Julia Brownley (Democratic), incumbent U.S. representative
- Michael Koslow (Republican), healthcare investigator and retired Department of Defense special agent
Eliminated in primary
- Chris Anstead (Democratic), Agoura Hills city councilor
- Bruce Boyer (Republican), businessman, dancer, and perennial candidate
| Campaign finance reports as of February 14, 2024 | | | |
| Chris Anstead (D) | $41,697 | $17,704 | $23,993 |
| Julia Brownley (D) | $879,078 | $465,567 | $762,703 |
| Michael Koslow (R) | $39,066 | $34,563 | $4,503 |
| Source | Ranking | As of |
| The Cook Political Report | Solid D | February 2, 2023 |
| Inside Elections | March 10, 2023 | |
| Sabato's Crystal Ball | Safe D | February 23, 2023 |
| Elections Daily | February 5, 2024 | |
| CNalysis | Solid D | November 16, 2023 |
| Primary election | | | |
| Democratic | 84,997 | 51.4 |
| Republican | 55,908 | 33.8 |
| Republican | 17,707 | 10.7 |
| Democratic | 6,841 | 4.1 |
| 165,453 | 100.0 | | |
| Democratic | 187,393 | 56.1 |
| Republican | 146,913 | 43.9 |
| 334,306 | 100.0 | | |
| | | |
| County | Julia BrownleyDemocratic | Michael KoslowRepublican | Margin | Total votes cast | | | |
| Los Angeles (part) | 15,629 | 56.64% | 11,966 | 43.36% | 3,663 | 13.27% | 27,595 |
| Ventura (part) | 171,764 | 56.00% | 134,947 | 44.00% | 36,817 | 12.00% | 306,711 |
The incumbent was Republican Mike Garcia, who was re-elected with 53.2% of the vote in 2022.
Advanced to general
- Mike Garcia (Republican), incumbent U.S. representative
- George Whitesides (Democratic), former NASA chief of staff and former CEO of Virgin Galactic
Eliminated in primary
- Steve Hill (Democratic), appraiser and perennial candidate
Withdrawn
- Franky Carrillo (Democratic), member of the Los Angeles County Probation Oversight Commission (ran for state assembly, endorsed Whitesides)
| Campaign finance reports as of February 14, 2024 | | | |
| Mike Garcia (R) | $3,180,332 | $1,736,253 | $1,560,751 |
| George Whitesides (D) | $3,578,060 | $1,069,537 | $2,508,523 |
| Source | Ranking | As of |
| The Cook Political Report | Tossup | April 18, 2023 |
| Inside Elections | March 10, 2023 | |
| Sabato's Crystal Ball | Lean D (flip) | November 4, 2024 |
| Elections Daily | Lean R | November 4, 2024 |
| CNalysis | Tilt D (flip) | November 4, 2024 |
| Poll source | Date(s)administered | Samplesize | Marginof error | MikeGarcia (R) | GeorgeWhitesides (D) | Undecided |
| USC/CSU | September 14–21, 2024 | 522 (LV) | ± 4.3% | 46% | 48% | 6% |
| Impact Research (D) | April 12–18, 2024 | 650 (V) | – | 44% | 47% | 9% |
| Primary election | | | |
| Republican | 74,245 | 54.9 |
| Democratic | 44,391 | 32.8 |
| Democratic | 16,525 | 12.2 |
| 135,161 | 100.0 | | |
| Democratic | 154,040 | 51.3 |
| Republican | 146,050 | 48.7 |
| 300,090 | 100.0 | | |
| Democratic gain from Republican | | |
The incumbent was Democrat Judy Chu, who had represented the district since 2013 and was re-elected with 66.2% of the vote in 2022.
Advanced to general
- Judy Chu (Democratic), incumbent U.S. representative
- April Verlato (Republican), mayor of Arcadia
Eliminated in primary
- Jose Castaneda (Libertarian), customer service representative
- William Patterson (Peace and Freedom), consultant
| Campaign finance reports as of February 14, 2024 | | | |
| Judy Chu (D) | $954,243 | $769,610 | $3,531,026 |
| April Verlato (R) | $198,176 | $37,739 | $160,437 |
| Source | Ranking | As of |
| The Cook Political Report | Solid D | February 2, 2023 |
| Inside Elections | March 10, 2023 | |
| Sabato's Crystal Ball | Safe D | February 23, 2023 |
| Elections Daily | February 5, 2024 | |
| CNalysis | Solid D | November 16, 2023 |
| Primary election | | | |
| Democratic | 99,261 | 62.7 |
| Republican | 52,369 | 33.1 |
| Peace and Freedom | 3,503 | 2.2 |
| Libertarian | 3,156 | 2.0 |
| 158,289 | 100.0 | | |
| Democratic | 204,489 | 64.9 |
| Republican | 110,455 | 35.1 |
| 314,944 | 100.0 | | |
| | | |
| County | Judy ChuDemocratic | April VerlatoRepublican | Margin | Total votes cast | | | |
| Los Angeles (part) | 187,612 | 68.36% | 86,833 | 31.64% | 100,779 | 36.72% | 274,445 |
| San Bernardino (part) | 16,877 | 41.67% | 23,622 | 58.33% | −6,745 | −16.65% | 40,499 |
The incumbent was Democrat Tony Cárdenas, who had represented the district since 2013 and was re-elected with 58.5% of the vote in 2022, running against another Democrat. On November 20, 2023, he announced that he would not seek re-election in 2024.
Advanced to general
- Benito Bernal (Republican), youth advocate, perennial candidate, and runner-up for this district in 2018
- Luz Rivas (Democratic), state assemblywoman from the 43rd district (2018–present)
Eliminated in primary
- Angelica Dueñas (Democratic), former president of the Sun Valley neighborhood council and runner-up for this district in 2020 and 2022
Declined
- Tony Cárdenas (Democratic), incumbent U.S. representative (endorsed Rivas)
| Campaign finance reports as of February 14, 2024 | | | |
| Angelica Dueñas (D) | $83,650 | $76,853 | $12,631 |
| Luz Rivas (D) | $344,596 | $191,449 | $136,748 |
| Benito Bernal (R) | $27,326 | $10,352 | $1,542 |
| Source | Ranking | As of |
| The Cook Political Report | Solid D | February 2, 2023 |
| Inside Elections | March 10, 2023 | |
| Sabato's Crystal Ball | Safe D | February 23, 2023 |
| Elections Daily | February 5, 2024 | |
| CNalysis | Solid D | November 16, 2023 |
| Primary election | | | |
| Democratic | 40,096 | 49.3 |
| Republican | 21,446 | 26.4 |
| Democratic | 19,844 | 24.4 |
| 81,386 | 100.0 | | |
| Democratic | 146,312 | 69.8 |
| Republican | 63,374 | 30.2 |
| 209,686 | 100.0 | | |
| | | |
| County | Luz RivasDemocratic | Benito BernalRepublican | Margin | Total votes cast | | | |
| Los Angeles (part) | 146,312 | 69.78% | 63,374 | 30.22% | 82,938 | 39.55% | 209,686 |
The incumbent was Democrat Adam Schiff, who was re-elected with 71.1% of the vote in 2022, running against another Democrat. He did not seek re-election, instead choosing to run for the U.S. Senate.
Advanced to general
- Alex Balekian (Republican), physician
- Laura Friedman (Democratic), state assemblywoman from the 43rd district
Eliminated in primary
- Francisco Arreaga (Democratic), former policy advisor to U.S. Representative Dan Goldman
- Joshua Bocanegra (no party preference), software developer
- Steve Dunwoody (Democratic), government affairs executive and former special assistant to the U.S. Deputy Secretary of Energy
- Mike Feuer (Democratic), former Los Angeles City Attorney
- Sal Genovese, community services director and perennial candidate
- Maebe A. Girl (Democratic), Silver Lake neighborhood council board member and runner-up for this district in 2022
- Emilio Martinez (Republican), television producer
- Nick Melvoin (Democratic), member of the Los Angeles Board of Education
- Courtney Najera (Democratic), beautician
- Anthony Portantino (Democratic), state senator from the 25th district
- Jirair Ratevosian (Democratic), former senior advisor at the U.S. Department of State and former legislative director for U.S. Representative Barbara Lee
- Ben Savage (Democratic), actor known for Boy Meets World
- Sepi Shyne (Democratic), mayor of West Hollywood
| Source | Ranking | As of |
| The Cook Political Report | Solid D | February 2, 2023 |
| Inside Elections | March 10, 2023 | |
| Sabato's Crystal Ball | Safe D | February 23, 2023 |
| Elections Daily | February 5, 2024 | |
| CNalysis | Solid D | November 16, 2023 |
| Primary election | | | |
| Democratic | 46,329 | 30.1 |
| Republican | 26,826 | 17.4 |
| Democratic | 20,459 | 13.3 |
| Democratic | 18,878 | 12.3 |
| Democratic | 15,791 | 10.3 |
| Republican | 6,775 | 4.4 |
| Democratic | 6,147 | 4.0 |
| Democratic | 4,134 | 2.7 |
| Democratic | 2,889 | 1.9 |
| Democratic | 2,126 | 1.4 |
| Democratic | 1,167 | 0.8 |
| No party preference | 780 | 0.5 |
| Democratic | 727 | 0.5 |
| Democratic | 532 | 0.3 |
| Democratic | 442 | 0.3 |
| 154,002 | 100.0 | | |
| Democratic | 213,100 | 68.4 |
| Republican | 98,559 | 31.6 |
| 311,659 | 100.0 | | |
| | | |
The incumbent was Democrat Grace Napolitano, who was re-elected with 59.5% of the vote in 2022. Napolitano decided to retire rather than seek re-election.
Advanced to general
- Gil Cisneros (Democratic), former U.S. Under Secretary of Defense for Personnel and Readiness (2021–2023) and former U.S. Representative from the 39th district (2019–2021)
- Daniel Martinez (Republican), attorney and runner-up for this district in 2022
Eliminated in primary
- Bob Archuleta (Democratic), state senator from the 30th district (2018–present)
- Pedro Casas (Republican), clinical psychologist
- Greg Hafif (Democratic), attorney
- Kurt Jose (Democratic), businessman
- Erskine Levi (American Solidarity Party), teacher
- Mary Ann Lutz (Democratic), president of the Citrus College Board of Trustees, former mayor of Monrovia, and former policy advisor to incumbent Grace Napolitano
- Marie Manvel (no party preference), former member of the Santa Monica Social Services Commission and runner-up for State Board of Equalization District 3 in 2022
- Susan Rubio (Democratic), state senator from the 22nd district (2018–present)
Declined
- Grace Napolitano (Democratic), incumbent U.S. representative (endorsed Archuleta)
| Campaign finance reports as of February 14, 2024 | | | |
| Bob Archuleta (D) | $513,580 | $494,266 | $19,314 |
| Gil Cisneros (D) | $4,641,856 | $4,534,715 | $107,140 |
| Greg Hafif (D) | $826,060 | $555,576 | $270,483 |
| Mary Ann Lutz (D) | $625,215 | $373,697 | $251,517 |
| Susan Rubio (D) | $554,685 | $396,341 | $158,343 |
| Source | Ranking | As of |
| Cook Political Report | Solid D | February 2, 2023 |
| Inside Elections | March 10, 2023 | |
| Sabato's Crystal Ball | Safe D | February 23, 2023 |
| Elections Daily | February 5, 2024 | |
| CNalysis | Solid D | November 16, 2023 |
| Primary election | | | |
| Democratic | 23,888 | 23.6 |
| Republican | 19,464 | 19.2 |
| Republican | 17,077 | 16.9 |
| Democratic | 16,006 | 15.8 |
| Democratic | 10,151 | 10.0 |
| Democratic | 6,629 | 6.5 |
| Democratic | 4,914 | 4.9 |
| Democratic | 1,415 | 1.4 |
| No party preference | 1,166 | 1.2 |
| No party preference | 534 | 0.5 |
| 101,244 | 100.0 | | |
| Democratic | 148,095 | 59.7 |
| Republican | 99,856 | 40.3 |
| 247,951 | 100.0 | | |
| | | |
The incumbent was Democrat Brad Sherman, who had represented the district since 2013 and was re-elected with 69.2% of the vote in 2022.
Advanced to general
- Brad Sherman (Democratic), incumbent U.S. representative
- Larry Thompson (Republican), attorney and candidate for the 37th district in 2020
Eliminated in primary
- Dave Abbitt (Democratic), digital media producer
- Christopher Ahuja (Democratic), talent agent
- James Shuster (Republican), retired businessman
- Douglas Smith (Democratic), stage manager
Withdrawn
- Trevor Witt (Democratic), driver
| Campaign finance reports as of February 14, 2024 | | | |
| Dave Abbitt (D) | $2,240 | $0 | $2,240 |
| Brad Sherman (D) | $984,660 | $533,849 | $3,419,583 |
| James Shuster (R) | $5,421 | $6,911 | $0 |
| Larry Thompson (R) | $71,981 | $59,149 | $12,831 |
| Source | Ranking | As of |
| The Cook Political Report | Solid D | February 2, 2023 |
| Inside Elections | March 10, 2023 | |
| Sabato's Crystal Ball | Safe D | February 23, 2023 |
| Elections Daily | February 5, 2024 | |
| CNalysis | Solid D | November 16, 2023 |
| Primary election | | | |
| Democratic | 91,952 | 58.6 |
| Republican | 29,939 | 19.1 |
| Republican | 16,601 | 10.6 |
| Democratic | 12,637 | 8.1 |
| Democratic | 2,504 | 1.6 |
| Democratic | 1,665 | 1.1 |
| Democratic | 1,635 | 1.0 |
| 156,933 | 100.0 | | |
| Democratic | 212,934 | 66.2 |
| Republican | 108,711 | 33.8 |
| 321,645 | 100.0 | | |
| | | |
| County | Brad ShermanDemocratic | Larry ThompsonRepublican | Margin | Total votes cast | | | |
| Los Angeles (part) | 212,328 | 66.25% | 108,165 | 33.75% | 104,163 | 32.50% | 320,493 |
| Ventura (part) | 606 | 52.60% | 546 | 47.40% | 60 | 5.21% | 1,152 |
The incumbent was Democrat Pete Aguilar, who had represented the district since 2015 and was re-elected with 61.3% of the vote in 2022.
Advanced to general
- Pete Aguilar (Democratic), incumbent U.S. representative
- Tom Herman (Republican), property manager
Write-in candidates
- John Mark Porter (Republican), disaster response coordinator and runner-up for this district in 2022
- Ernest Richter (Republican), retired businessman and candidate for this district in 2022
Withdrawn
- Sarah Sun Liew (Republican), businesswoman, candidate for this district in 2020, and candidate for U.S. Senate in 2022 (ran for U.S. Senate)
| Campaign finance reports as of February 14, 2024 | | | |
| Pete Aguilar (D) | $3,427,439 | $1,993,237 | $3,013,958 |
| Tom Herman (R) | $4,692 | $2,710 | $1,982 |
| Source | Ranking | As of |
| The Cook Political Report | Solid D | February 2, 2023 |
| Inside Elections | March 10, 2023 | |
| Sabato's Crystal Ball | Safe D | February 23, 2023 |
| Elections Daily | February 5, 2024 | |
| CNalysis | Solid D | November 16, 2023 |
| Primary election | | | |
| Democratic | 45,065 | 57.1 |
| Republican | 33,815 | 42.8 |
| Republican | 104 | 0.1 |
| Republican | 3 | 0.0 |
| 78,987 | 100.0 | | |
| Democratic | 137,197 | 58.8 |
| Republican | 96,078 | 41.2 |
| 233,275 | 100.0 | | |
| | | |
The incumbent was Democrat Jimmy Gomez, who had represented the district since 2017 and was re-elected with 51.3% of the vote in 2022.
Advanced to general
- Jimmy Gomez (Democratic), incumbent U.S. representative
- David Kim (Democratic), former MacArthur Park neighborhood council board member and runner-up for this district in 2020 and 2022
Eliminated in primary
- David Ferrell (Democratic), attorney
- Calvin Lee (Republican), businessman
- Aaron Reveles (Peace and Freedom), teacher
| Campaign finance reports as of February 14, 2024 | | | |
| David Ferrell (D) | $9,072 | $5,930 | $3,141 |
| Jimmy Gomez (D) | $1,088,878 | $733,445 | $910,936 |
| David Kim (D) | $100,011 | $95,640 | $4,371 |
| Source | Ranking | As of |
| The Cook Political Report | Solid D | February 2, 2023 |
| Inside Elections | March 10, 2023 | |
| Sabato's Crystal Ball | Safe D | February 23, 2023 |
| Elections Daily | February 5, 2024 | |
| CNalysis | Solid D | November 16, 2023 |
| Primary election | | | |
| Democratic | 41,611 | 51.2 |
| Democratic | 22,703 | 27.9 |
| Republican | 11,495 | 14.1 |
| Peace and Freedom | 3,223 | 4.0 |
| Democratic | 2,312 | 2.8 |
| 81,344 | 100.0 | | |
| Democratic | 105,394 | 55.6 |
| Democratic | 84,020 | 44.4 |
| 189,414 | 100.0 | | |
| | | |
The incumbent was Democrat Norma Torres, who had represented the district since 2015 and was re-elected with 57.4% of the vote in 2022.
Advanced to general
- Mike Cargile (Republican), independent filmmaker and runner-up for this district in 2020 and 2022
- Norma Torres (Democratic), incumbent U.S. representative
Eliminated in primary
- Melissa May (Democratic), former Mountain View School District trustee
- Vijal Suthar (Republican), hotel manager
| Campaign finance reports as of February 14, 2024 | | | |
| Norma Torres (D) | $453,582 | $529,935 | $271,829 |
| Mike Cargile (R) | $51,310 | $47,539 | $5,143 |
| Melissa May (D) | $13,394 | $12,041 | $1,352 |
| Source | Ranking | As of |
| The Cook Political Report | Solid D | February 2, 2023 |
| Inside Elections | March 10, 2023 | |
| Sabato's Crystal Ball | Safe D | February 23, 2023 |
| Elections Daily | February 5, 2024 | |
| CNalysis | Solid D | November 16, 2023 |
| Primary election | | | |
| Democratic | 39,051 | 48.2 |
| Republican | 32,082 | 39.6 |
| Democratic | 6,432 | 7.9 |
| Republican | 3,491 | 4.3 |
| 81,056 | 100.0 | | |
| Democratic | 136,413 | 58.4 |
| Republican | 97,142 | 41.6 |
| 233,555 | 100.0 | | |
| | | |
| County | Norma TorresDemocratic | Mike CargileRepublican | Margin | Total votes cast | | | |
| Los Angeles (part) | 26,567 | 66.75% | 13,234 | 33.25% | 13,333 | 33.50% | 39,801 |
| Riverside (part) | 9,066 | 49.27% | 9,336 | 50.73% | −270 | −1.47% | 18,402 |
| San Bernardino (part) | 100,780 | 57.47% | 74,572 | 42.53% | 26,208 | 14.95% | 175,352 |
The incumbent was Democrat Ted Lieu, who had represented the district since 2015 and was re-elected with 69.8% of the vote in 2022.
Advanced to general
- Ted Lieu (Democratic), incumbent U.S. representative
- Melissa Toomim (Republican), journalist and candidate for the 32nd district in 2022
Eliminated in primary
- Claire Anderson (no party preference), businesswoman
- Ariana Hakami (Republican), financial advisor and candidate for this district in 2022
| Campaign finance reports as of February 14, 2024 | | | |
| Ted Lieu (D) | $1,284,495 | $1,459,830 | $619,055 |
| Ariana Hakami (R) | $2,840 | $2,802 | $243 |
| Melissa Toomim (R) | $13,331 | $12,458 | $1,020 |
| Claire Anderson (NPP) | $25,521 | $23,762 | $1,759 |
| Source | Ranking | As of |
| The Cook Political Report | Solid D | February 2, 2023 |
| Inside Elections | March 10, 2023 | |
| Sabato's Crystal Ball | Safe D | February 23, 2023 |
| Elections Daily | February 5, 2024 | |
| CNalysis | Solid D | November 16, 2023 |
| Primary election | | | |
| Democratic | 125,858 | 68.5 |
| Republican | 27,440 | 14.9 |
| Republican | 25,823 | 14.1 |
| No party preference | 4,509 | 2.5 |
| 183,630 | 100.0 | | |
| Democratic | 246,002 | 68.7 |
| Republican | 111,985 | 31.3 |
| 357,987 | 100.0 | | |
| | | |
The incumbent was Democrat Sydney Kamlager-Dove, who had represented the district since 2023. She was elected with 64.0% of the vote in 2022, running against another Democrat.
Advanced to general
- Sydney Kamlager-Dove (Democratic), incumbent U.S. representative
- Juan Rey (no party preference), train mechanic
Eliminated in primary
- Adam Carmichael (Democratic), software engineer
- Baltazar Fedalizo (Republican), businessman and candidate for this district in 2022 (write-in)
- John Parker (Peace and Freedom), political organizer and activist
| Campaign finance reports as of February 14, 2024 | | | |
| Sydney Kamlager-Dove (D) | $643,384 | $569,532 | $175,730 |
| Source | Ranking | As of |
| The Cook Political Report | Solid D | February 2, 2023 |
| Inside Elections | March 10, 2023 | |
| Sabato's Crystal Ball | Safe D | February 23, 2023 |
| Elections Daily | February 5, 2024 | |
| CNalysis | Solid D | November 16, 2023 |
| Primary election | | | |
| Democratic | 62,413 | 71.8 |
| No party preference | 8,917 | 10.3 |
| Democratic | 7,520 | 8.7 |
| Peace and Freedom | 7,316 | 8.4 |
| Republican | 752 | 0.9 |
| 86,918 | 100.0 | | |
| Democratic | 160,364 | 78.3 |
| No party preference | 44,450 | 21.7 |
| 204,814 | 100.0 | | |
| | | |
The incumbent was Democrat Linda Sánchez, who had represented the district since 2013 and was re-elected with 58.1% of the vote in 2022.
Advanced to general
- Eric Ching (Republican), Walnut city councilor and runner-up for this district in 2022
- Linda Sánchez (Democratic), incumbent U.S. representative
Eliminated in primary
- Robert Ochoa (Republican), entrepreneur
- John Sarega (Republican), businessman and candidate for this district in 2022
| Campaign finance reports as of February 14, 2024 | | | |
| Linda Sánchez (D) | $911,863 | $757,636 | $597,371 |
| Eric Ching (R) | $16,307 | $4,687 | $16,483 |
| Source | Ranking | As of |
| The Cook Political Report | Solid D | February 2, 2023 |
| Inside Elections | March 10, 2023 | |
| Sabato's Crystal Ball | Safe D | February 23, 2023 |
| Elections Daily | February 5, 2024 | |
| CNalysis | Solid D | November 16, 2023 |
| Primary election | | | |
| Democratic | 62,325 | 56.2 |
| Republican | 26,744 | 24.1 |
| Republican | 13,841 | 12.5 |
| Republican | 8,034 | 7.2 |
| 110,944 | 100.0 | | |
| Democratic | 165,110 | 59.8 |
| Republican | 110,818 | 40.2 |
| 275,928 | 100.0 | | |
| | | |
| County | Linda SánchezDemocratic | Eric ChingRepublican | Margin | Total votes cast | | | |
| Los Angeles (part) | 152,498 | 60.39% | 100,019 | 39.61% | 52,479 | 20.78% | 252,517 |
| Orange (part) | 12,612 | 53.87% | 10,799 | 46.13% | 1,813 | 7.74% | 23,411 |
The incumbent was Democrat Mark Takano, who had represented the district since 2013 and was re-elected with 57.7% of the vote in 2022.
Advanced to general
- David Serpa (Republican), businessman
- Mark Takano (Democratic), incumbent U.S. representative
| Campaign finance reports as of June 30, 2024 | | | |
| Mark Takano (D) | $907,118 | $1,113,661 | $284,662 |
| David Serpa (R) | $26,133 | $18,307 | $7,826 |
| Source | Ranking | As of |
| The Cook Political Report | Solid D | February 2, 2023 |
| Inside Elections | March 10, 2023 | |
| Sabato's Crystal Ball | Safe D | February 23, 2023 |
| Elections Daily | February 5, 2024 | |
| CNalysis | Solid D | November 16, 2023 |
| Primary election | | | |
| Democratic | 48,351 | 55.5 |
| Republican | 38,750 | 44.5 |
| 87,101 | 100.0 | | |
| Democratic | 130,191 | 56.7 |
| Republican | 99,469 | 43.3 |
| 229,660 | 100.0 | | |
| | | |
The incumbent was Republican Young Kim, who was re-elected with 56.8% of the vote in 2022.
Advanced to general
- Joe Kerr (Democratic), retired Orange County fire captain, candidate for Orange County Board of Supervisors District 4 in 2018, and candidate for SD-38 in 2022
- Young Kim (Republican), incumbent U.S. representative
Eliminated in primary
- Allyson Muñiz Damikolas (Democratic), Tustin Unified School District trustee
| Campaign finance reports as of February 14, 2024 | | | |
| Young Kim (R) | $4,097,491 | $1,987,963 | $2,509,006 |
| Allyson Muñiz Damikolas (D) | $549,563 | $494,776 | $54,786 |
| Joe Kerr (D) | $1,082,947 | $1,002,971 | $79,976 |
| Source | Ranking | As of |
| The Cook Political Report | Likely R | February 2, 2023 |
| Inside Elections | March 10, 2023 | |
| Sabato's Crystal Ball | November 4, 2024 | |
| Elections Daily | November 4, 2024 | |
| CNalysis | Lean R | November 4, 2024 |
| Primary election | | | |
| Republican | 109,963 | 56.4 |
| Democratic | 49,965 | 25.6 |
| Democratic | 35,153 | 18.0 |
| 195,081 | 100.0 | | |
| Republican | 211,998 | 55.3 |
| Democratic | 171,637 | 44.7 |
| 383,635 | 100.0 | | |
| | | |
| County | Young KimRepublican | Joe KerrDemocratic | Margin | Total votes cast | | | |
| Orange (part) | 194,398 | 55.05% | 158,714 | 44.95% | 35,684 | 10.11% | 353,112 |
| Riverside (part) | 2,685 | 57.24% | 2,006 | 42.76% | 679 | 14.47% | 4,691 |
| San Bernardino (part) | 14,915 | 57.74% | 10,917 | 42.26% | 3,998 | 15.48% | 25,832 |
The incumbent was Republican Ken Calvert, who was re-elected with 52.3% of the vote in 2022.
Advanced to general
- Ken Calvert (Republican), incumbent U.S. representative
- Will Rollins (Democratic), counterterrorism attorney and runner-up for this district in 2022
Eliminated in primary
- Anna Nevenic (Democratic), nurse and perennial candidate
| Campaign finance reports as of March 31, 2024 | | | |
| Ken Calvert (R) | $4,395,180 | $1,825,606 | $2,639,377 |
| Anna Nevenic (D) | $11,180 | $5,780 | $5,400 |
| Will Rollins (D) | $4,775,382 | $1,658,288 | $3,162,026 |
| Poll source | Date(s)administered | Samplesize | Marginof error | KenCalvert (R) | WillRollins (D) | Other/Undecided |
| Global Strategy Group (D) | October 3–6, 2024 | 500 (LV) | ± 4.4% | 45% | 45% | 10% |
| USC/CSU | September 14–21, 2024 | 539 (LV) | ± 4.2% | 48% | 47% | 5% |
| RMG Research | September 5–12, 2024 | 461 (LV) | ± 4.6% | 35% | 41% | 24% |
| David Binder Research (D) | May 1–6, 2024 | 600 (LV) | ± 4.0% | 44% | 45% | 11% |
| Source | Ranking | As of |
| The Cook Political Report | Tossup | February 2, 2023 |
| Inside Elections | Tilt R | May 9, 2024 |
| Sabato's Crystal Ball | Lean R | November 4, 2024 |
| Elections Daily | November 4, 2024 | |
| CNalysis | Tilt R | November 4, 2024 |
| Primary election | | | |
| Republican | 85,959 | 53.0 |
| Democratic | 62,245 | 38.4 |
| Democratic | 13,862 | 8.6 |
| 162,066 | 100.0 | | |
| Republican | 183,216 | 51.7 |
| Democratic | 171,229 | 48.3 |
| 354,445 | 100.0 | | |
| | | |
The incumbent was Democrat Robert Garcia, who had represented the district since 2023, and was elected with 68.4% of the vote in 2022.
Advanced to general
- John Briscoe (Republican), Ocean View School District trustee, perennial candidate, and runner-up for this district in 2022
- Robert Garcia (Democratic), incumbent U.S. representative
Eliminated in primary
- Joaquin Beltran (Democratic), engineer and candidate for this district in 2022
- Nicole López (Democratic), communications consultant and candidate for this district in 2022
| Campaign finance reports as of February 14, 2024 | | | |
| Joaquin Beltran (D) | $17,195 | $14,722 | $2,472 |
| Robert Garcia (D) | $721,147 | $553,777 | $497,931 |
| Nicole López (D) | $3,339 | $2,544 | $1,095 |
| John Briscoe (R) | $250,000 | $4,308 | $245,691 |
| Source | Ranking | As of |
| The Cook Political Report | Solid D | February 2, 2023 |
| Inside Elections | March 10, 2023 | |
| Sabato's Crystal Ball | Safe D | February 23, 2023 |
| Elections Daily | February 5, 2024 | |
| CNalysis | Solid D | November 16, 2023 |
| Primary election | | | |
| Democratic | 49,891 | 52.1 |
| Republican | 30,599 | 31.9 |
| Democratic | 8,758 | 9.1 |
| Democratic | 6,532 | 6.8 |
| 95,780 | 100.0 | | |
| Democratic | 159,153 | 68.1 |
| Republican | 74,410 | 31.9 |
| 233,563 | 100.0 | | |
| | | |
The incumbent was Democrat Maxine Waters, who had represented the district since 1991 and was re-elected with 77.3% of the vote in 2022.
Advanced to general
- Maxine Waters (Democratic), incumbent U.S. representative
- Steve Williams (Republican), real estate broker
Eliminated in primary
- Gregory Cheadle (Democratic), attorney and perennial candidate
- David Knight (Republican), education business owner
- Chris Wiggins (Democratic), human resources recruiter and runner-up for the 37th district in 2016
| Campaign finance reports as of February 14, 2024 | | | |
| Maxine Waters (D) | $429,143 | $508,279 | $156,496 |
| Chris Wiggins (D) | $650 | $0 | $1,225 |
| David Knight (R) | $4,475 | $3,728 | $747 |
| Source | Ranking | As of |
| The Cook Political Report | Solid D | February 2, 2023 |
| Inside Elections | March 10, 2023 | |
| Sabato's Crystal Ball | Safe D | February 23, 2023 |
| Elections Daily | February 5, 2024 | |
| CNalysis | Solid D | November 16, 2023 |
| Primary election | | | |
| Democratic | 54,673 | 69.8 |
| Republican | 10,896 | 13.9 |
| Republican | 5,647 | 7.2 |
| Democratic | 4,999 | 6.4 |
| Democratic | 2,075 | 2.7 |
| 78,290 | 100.0 | | |
| Democratic | 160,080 | 75.1 |
| Republican | 53,152 | 24.9 |
| 213,232 | 100.0 | | |
| | | |
The incumbent was Democrat Nanette Barragán, who had represented the district since 2017 and was re-elected with 72.2% of the vote in 2022.
Advanced to general
- Nanette Barragán (Democratic), incumbent U.S. representative
- Roger Groh (Republican), investment manager
| Campaign finance reports as of February 14, 2024 | | | |
| Nanette Barragán (D) | $645,140 | $730,488 | $1,418,423 |
| Source | Ranking | As of |
| The Cook Political Report | Solid D | February 2, 2023 |
| Inside Elections | March 10, 2023 | |
| Sabato's Crystal Ball | Safe D | February 23, 2023 |
| Elections Daily | February 5, 2024 | |
| CNalysis | Solid D | November 16, 2023 |
| Primary election | | | |
| Democratic | 63,622 | 70.8 |
| Republican | 26,188 | 29.2 |
| 89,810 | 100.0 | | |
| Democratic | 164,765 | 71.4 |
| Republican | 66,087 | 28.6 |
| 230,852 | 100.0 | | |
| | | |
The incumbent was Republican Michelle Steel, who was re-elected with 52.4% of the vote in 2022.
Advanced to general
- Michelle Steel (Republican), incumbent U.S. representative
- Derek Tran (Democratic), Consumer Attorneys of California board member
Eliminated in primary
- Cheyenne Hunt (Democratic), attorney and TikTok influencer
- Kim Nguyen-Penaloza (Democratic), Garden Grove city councilor and runner-up for Orange County Board of Supervisors District 2 in 2022
- Aditya Pai (Democratic), attorney
| Source | Ranking | As of |
| The Cook Political Report | Tossup | September 6, 2024 |
| Inside Elections | October 18, 2024 | |
| Sabato's Crystal Ball | Lean R | November 4, 2024 |
| Elections Daily | November 4, 2024 | |
| CNalysis | Tilt D (flip) | November 4, 2024 |
| Primary election | | | |
| Republican | 78,022 | 54.9 |
| Democratic | 22,546 | 15.9 |
| Democratic | 22,179 | 15.6 |
| Democratic | 11,973 | 8.4 |
| Democratic | 7,399 | 5.2 |
| 142,119 | 100.0 | | |
| Democratic | 158,264 | 50.1 |
| Republican | 157,611 | 49.9 |
| 315,875 | 100.0 | | |
| Democratic gain from Republican | | |
The incumbent was Democrat Lou Correa, who had represented the district since 2017 and was re-elected with 61.8% of the vote in 2022.
Advanced to general
- Lou Correa (Democratic), incumbent U.S. representative
- David Pan (Republican), University of California, Irvine professor
| Campaign finance reports as of February 14, 2024 | | | |
| Lou Correa (D) | $670,662 | $438,796 | $1,754,509 |
| David Pan (R) | $48,303 | $26,416 | $21,886 |
| Source | Ranking | As of |
| The Cook Political Report | Solid D | February 2, 2023 |
| Inside Elections | March 10, 2023 | |
| Sabato's Crystal Ball | Safe D | February 23, 2023 |
| Elections Daily | February 5, 2024 | |
| CNalysis | Solid D | November 16, 2023 |
| Primary election | | | |
| Democratic | 46,184 | 60.6 |
| Republican | 30,032 | 39.4 |
| 76,216 | 100.0 | | |
| Democratic | 134,013 | 63.4 |
| Republican | 77,279 | 36.6 |
| 211,292 | 100.0 | | |
| | | |
The incumbent was Democrat Katie Porter, who was re-elected with 51.7% of the vote in 2022. She opted against seeking re-election, instead choosing to run for the U.S. Senate, ultimately losing her bid.
Advanced to general
- Scott Baugh (Republican), former minority leader of the California state assembly, former chair of the Orange County Republican Party, and runner-up for this district in 2022
- Dave Min (Democratic), state senator and candidate for this district in 2018
Eliminated in primary
- Terry Crandall (no party preference), Santa Ana College economics professor
- Tom McGrath (no party preference), chemical engineer
- Long Pham (Republican), former member of the Orange County Department of Education Board of Directors and perennial candidate
- Boyd Roberts (Democratic), realtor and perennial candidate
- Bill Smith (no party preference), retired attorney
- Max Ukropina (Republican), businessman and former aide to U.S. Representatives John Campbell and David Valadao
- Joanna Weiss (Democratic), attorney and law professor
- Shariq Zaidi (Democratic), security guard
| Source | Ranking | As of |
| The Cook Political Report | Lean D | February 2, 2023 |
| Inside Elections | Tossup | October 18, 2024 |
| Sabato's Crystal Ball | Lean D | November 4, 2024 |
| Elections Daily | Lean R (flip) | November 4, 2024 |
| CNalysis | Lean D | November 4, 2024 |
| Primary election | | | |
| Republican | 57,517 | 32.1 |
| Democratic | 46,393 | 25.9 |
| Democratic | 34,802 | 19.4 |
| Republican | 26,585 | 14.8 |
| Republican | 4,862 | 2.7 |
| No party preference | 2,878 | 1.6 |
| Democratic | 2,570 | 1.4 |
| No party preference | 1,611 | 0.9 |
| No party preference | 1,062 | 0.6 |
| Democratic | 788 | 0.4 |
| 179,068 | 100.0 | | |
| Democratic | 181,721 | 51.4 |
| Republican | 171,554 | 48.6 |
| 353,275 | 100.0 | | |
| | | |
The incumbent was Republican Darrell Issa, who had represented the district since 2021 and was re-elected with 60.4% of the vote in 2022.
Advanced to general
- Stephen Houlahan (Democratic), former Santee city councilor and runner-up for this district in 2022
- Darrell Issa (Republican), incumbent U.S. representative
Eliminated in primary
- Lucinda Jahn (no party preference), technician and candidate for this district in 2022
- Mathew Rascon (Democratic), security guard and candidate for this district in 2022
- Whitney Shanahan (Democratic), activist
- Mike Simon (Democratic), engineer
| Campaign finance reports as of February 14, 2024 | | | |
| Darrell Issa (R) | $919,404 | $440,906 | $1,096,087 |
| Stephen Houlahan (D) | $17,046 | $20,314 | $7,966 |
| Whitney Shanahan (D) | $16,056 | $14,561 | $1,495 |
| Mike Simon (D) | $123,417 | $113,117 | $10,300 |
| Source | Ranking | As of |
| The Cook Political Report | Solid R | February 2, 2023 |
| Inside Elections | March 10, 2023 | |
| Sabato's Crystal Ball | Safe R | February 23, 2023 |
| Elections Daily | February 5, 2024 | |
| CNalysis | Solid R | November 16, 2023 |
| Poll source | Date(s)administered | Samplesize | Marginof error | DarrellIssa (R) | StephenHoulahan (D) | Undecided |
| SurveyUSA | June 14–20, 2024 | 625 (LV) | ± 4.8% | 56% | 34% | 10% |
| Primary election | | | |
| Republican | 111,510 | 62.4 |
| Democratic | 26,601 | 14.9 |
| Democratic | 21,819 | 12.2 |
| Democratic | 12,950 | 7.2 |
| Democratic | 3,988 | 2.2 |
| No party preference | 1,959 | 1.1 |
| 178,827 | 100.0 | | |
| Republican | 213,625 | 59.3 |
| Democratic | 146,665 | 40.7 |
| 360,290 | 100.0 | | |
| | | |
| County | Darrell IssaRepublican | Stephen HoulahanDemocratic | Margin | Total votes cast | | | |
| Riverside (part) | 71,149 | 59.70% | 48,028 | 40.30% | 23,121 | 19.40% | 119,177 |
| San Diego (part) | 142,476 | 59.09% | 98,637 | 40.91% | 43,839 | 18.18% | 241,113 |
The incumbent was Democrat Mike Levin, who was re-elected with 52.6% of the vote in 2022.
Advanced to general
- Matt Gunderson (Republican), auto dealer and runner-up for SD-38 in 2022
- Mike Levin (Democratic), incumbent U.S. representative
Eliminated in primary
- Sheryl Adams (Republican), automotive marketer
- Kate Monroe (Republican), veteran aid nonprofit CEO
- Margarita Wilkinson (Republican), Entravision senior vice president
| Campaign finance reports as of February 14, 2024 | | | |
| Mike Levin (D) | $2,429,689 | $1,342,976 | $1,222,164 |
| Sheryl Adams (R) | $241,435 | $133,602 | $107,832 |
| Matt Gunderson (R) | $1,201,102 | $1,000,024 | $201,078 |
| Kate Monroe (R) | $376,573 | $204,994 | $171,578 |
| Margarita Wilkinson (R) | $1,799,386 | $1,313,920 | $487,466 |
| Source | Ranking | As of |
| The Cook Political Report | Lean D | October 15, 2024 |
| Inside Elections | October 31, 2024 | |
| Sabato's Crystal Ball | Likely D | September 30, 2024 |
| Elections Daily | Lean D | October 10, 2024 |
| CNalysis | Solid D | October 16, 2024 |
| Poll source | Date(s)administered | Samplesize | Marginof error | MikeLevin (D) | MattGunderson (R) | Other | Undecided |
| SurveyUSA | October 25–31, 2024 | 574 (LV) | ± 5.0% | 51% | 38% | 3% | 8% |
| 1892 Polling (R) | October 5–8, 2024 | 400 (LV) | ± 4.9% | 46% | 45% | – | 9% |
| SurveyUSA | October 2–6, 2024 | 617 (LV) | ± 4.8% | 53% | 41% | 1% | 5% |
| SurveyUSA | June 5–10, 2024 | 559 (LV) | ± 4.8% | 50% | 40% | – | 10% |
| 1892 Polling (R) | April 9–11, 2024 | 400 (LV) | ± 4.9% | 44% | 42% | – | 14% |
| SurveyUSA | January 9–15, 2024 | 650 (LV) | ± 4.4% | 47% | 34% | – | 20% |
| 43% | 12% | 17% | 28% | | | | |
| Primary election | | | |
| Democratic | 97,275 | 51.0 |
| Republican | 49,001 | 25.7 |
| Republican | 20,900 | 11.0 |
| Republican | 19,026 | 10.0 |
| Republican | 4,617 | 2.4 |
| 190,819 | 100.0 | | |
| Democratic | 197,397 | 52.2 |
| Republican | 180,950 | 47.8 |
| 378,347 | 100.0 | | |
| | | |
| County | Mike LevinDemocratic | Matt GundersonRepublican | Margin | Total votes cast | | | |
| Orange (part) | 59,928 | 44.58% | 74,512 | 55.42% | −14,584 | −10.85% | 134,440 |
| San Diego (part) | 137,469 | 56.36% | 106,438 | 43.64% | 31,031 | 12.72% | 243,907 |
The incumbent was Democrat Scott Peters, who had represented the district since 2013 and was re-elected with 62.8% of the vote in 2022.
Advanced to general
- Peter Bono (Republican), retired U.S. Navy technician
- Scott Peters (Democratic), incumbent U.S. representative
Eliminated in primary
- Timothy Bilash (Democratic), obstetrician-gynecologist
- Solomon Moss (Republican), home tiling contractor
| Campaign finance reports as of February 14, 2024 | | | |
| Timothy Bilash (D) | $27,181 | $26,506 | $961 |
| Scott Peters (D) | $1,288,282 | $896,445 | $2,125,794 |
| Source | Ranking | As of |
| The Cook Political Report | Solid D | February 2, 2023 |
| Inside Elections | March 10, 2023 | |
| Sabato's Crystal Ball | Safe D | February 23, 2023 |
| Elections Daily | February 5, 2024 | |
| CNalysis | Solid D | November 16, 2023 |
| Poll source | Date(s)administered | Samplesize | Marginof error | ScottPeters (D) | PeterBono (R) | Undecided |
| SurveyUSA | June 24–30, 2024 | 601 (LV) | ± 5.0% | 51% | 33% | 17% |
| Primary election | | | |
| Democratic | 97,601 | 57.0 |
| Republican | 40,284 | 23.5 |
| Republican | 20,252 | 11.8 |
| Democratic | 13,106 | 7.7 |
| 171,243 | 100.0 | | |
| Democratic | 231,836 | 64.3 |
| Republican | 128,859 | 35.7 |
| 360,695 | 100.0 | | |
| | | |
The incumbent was Democrat Sara Jacobs, who had represented the district since 2021 and was re-elected with 61.9% of the vote in 2022.
Advanced to general
- Sara Jacobs (Democratic), incumbent U.S. representative
- Bill Wells (Republican), mayor of El Cajon
Eliminated in primary
- Stan Caplan (no party preference), businessman and Republican runner-up for this district in 2022
- Hilaire Fuji Shioura (no party preference), former Placentia library trustee and perennial candidate
| Campaign finance reports as of February 14, 2024 | | | |
| Sara Jacobs (D) | $985,133 | $864,795 | $210,365 |
| Bill Wells (R) | $563,914 | $392,408 | $178,685 |
| Stan Caplan (NPP) | $41,726 | $34,162 | $7,564 |
| Poll source | Date(s)administered | Samplesize | Marginof error | StanCaplan (NPP) | SaraJacobs (D) | HilaireShioura (NPP) | BillWells (R) | Undecided |
| SurveyUSA | January 26–31, 2024 | 562 (LV) | ± 4.9% | 4% | 48% | 3% | 29% | 16% |
| Source | Ranking | As of |
| The Cook Political Report | Solid D | February 2, 2023 |
| Inside Elections | March 10, 2023 | |
| Sabato's Crystal Ball | Safe D | February 23, 2023 |
| Elections Daily | February 5, 2024 | |
| CNalysis | Solid D | November 16, 2023 |
| Poll source | Date(s)administered | Samplesize | Marginof error | SaraJacobs (D) | BillWells (R) | Undecided |
| SurveyUSA | October 23–27, 2024 | 521 (LV) | ± 5.2% | 61% | 25% | 13% |
| SurveyUSA | June 10–14, 2024 | 537 (LV) | ± 4.8% | 54% | 32% | 14% |
| SurveyUSA | January 26–31, 2024 | 562 (LV) | ± 4.9% | 55% | 34% | 11% |
| Primary election | | | |
| Democratic | 90,901 | 57.4 |
| Republican | 61,923 | 39.1 |
| No party preference | 3,164 | 2.0 |
| No party preference | 2,496 | 1.6 |
| 158,484 | 100.0 | | |
| Democratic | 198,835 | 60.7 |
| Republican | 128,749 | 39.3 |
| 327,584 | 100.0 | | |
| | | |
The incumbent was Democrat Juan Vargas, who had represented the district since 2013 and was re-elected with 66.7% of the vote in 2022.
Advanced to general
- Justin Lee (Republican), realtor
- Juan Vargas (Democratic), incumbent U.S. representative
| Campaign finance reports as of February 14, 2024 | | | |
| Juan Vargas (D) | $458,547 | $495,704 | $182,387 |
| Source | Ranking | As of |
| The Cook Political Report | Solid D | February 2, 2023 |
| Inside Elections | March 10, 2023 | |
| Sabato's Crystal Ball | Safe D | February 23, 2023 |
| Elections Daily | February 5, 2024 | |
| CNalysis | Solid D | November 16, 2023 |
| Poll source | Date(s)administered | Samplesize | Marginof error | JuanVargas (D) | JustinLee (R) | Undecided |
| SurveyUSA | June 20–25, 2024 | 507 (LV) | ± 5.5% | 57% | 25% | 19% |
| Primary election | | | |
| Democratic | 62,511 | 65.0 |
| Republican | 33,611 | 35.0 |
| 96,122 | 100.0 | | |
| Democratic | 172,217 | 66.3 |
| Republican | 87,501 | 33.7 |
| 259,718 | 100.0 | | |
| | | |
Partisan clients