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California's 48th congressional district

U.S. House district for California

California's 48th congressional district

U.S. House district for California

FieldValue
stateCalifornia
district number48
image name{{switcher
{{maplinkframeyesplain=yesfrom=California's 48th congressional district (2023–).mapframe-height=300frame-width=400frame-latitude=33.1frame-longitude=-116.7zoom=8overlay-horizontal-alignment=rightoverlay-vertical-alignment=bottomoverlay=[[File:California's 48th congressional district (since 2023).svg100px]]}}
{{maplinkframeyesplain=yesfrom=California's 48th congressional district (2027–).mapframe-height=300frame-width=400frame-latitude=33.25frame-longitude=-116.7zoom=8overlay-horizontal-alignment=rightoverlay-vertical-alignment=bottomoverlay=[[File:California's 48th congressional district (since 2027).svg100px]]}}
image captionInteractive map of district boundaries
representativeDarrell Issa
partyRepublican
residenceBonsall
population768,439
population year2024
median income$114,972
percent white53.3
percent hispanic29.4
percent black3.1
percent asian6.9
percent native american1.0
percent more than one race5.4
percent other race0.9
cpviR+7

| |From 2023 to 2027, starting with the 2022 elections | |From 2027, starting with the 2026 elections |percent more than one race = 5.4

California's 48th congressional district is a congressional district in the U.S. state of California that covers East County, San Diego as well as the Temecula Valley. Major cities in the district include Temecula, Murrieta, and portions of Escondido. It is currently represented by Republican Darrell Issa.

From 2013 to 2023, the district included Costa Mesa, Emerald Bay, Fountain Valley, Huntington Beach, Laguna Beach, Laguna Niguel, Newport Beach, Seal Beach, Sunset Beach and parts of Garden Grove, Midway City, Aliso Viejo, Santa Ana and Westminster. It was very competitive and had recently been won by each of the two main parties. In the 2018 House elections, Democrat Harley Rouda became the district's representative, defeating incumbent Republican Dana Rohrabacher. Rouda was then defeated by Republican Michelle Steel in the 2020 elections.

From 2003 to 2013, the district included the cities of Aliso Viejo, Dana Point, Irvine, Laguna Beach, Laguna Hills, Laguna Niguel, Laguna Woods, Lake Forest (formerly known as El Toro), Tustin, parts of Irvine and parts of Newport Beach and San Juan Capistrano.

Recent election results from statewide races

2023–2027 boundaries

YearOfficeResults
2008PresidentMcCain 61% - 39%
2010GovernorWhitman 63% - 31%
Lt. GovernorMaldonado 58% - 29%
Secretary of StateDunn 61% - 31%
Attorney GeneralCooley 66% - 25%
TreasurerWalters 58% - 35%
ControllerStrickland 57% - 35%
2012PresidentRomney 63% - 37%
2014GovernorKashkari 65% - 35%
2016PresidentTrump 57% - 37%
2018GovernorCox 62% - 38%
Attorney GeneralBailey 60% - 40%
2020PresidentTrump 55% - 43%
2022Senate (Reg.)Meuser 60% - 40%
GovernorDahle 62% - 38%
Lt. GovernorUnderwood Jacobs 61% - 39%
Secretary of StateBernosky 61% - 39%
Attorney GeneralHochman 61% - 39%
TreasurerGuerrero 62% - 38%
ControllerChen 63% - 37%
2024PresidentTrump 56% - 41%
Senate (Reg.)Garvey 60% - 40%

2027–2033 boundaries

YearOfficeResults
2008PresidentObama 57% - 43%
2010GovernorBrown 55% - 37%
Lt. GovernorNewsom 54% - 32%
Secretary of StateBowen 53% - 37%
Attorney GeneralHarris 58% - 30%
TreasurerLockyer 51% - 40%
ControllerChiang 47% - 41%
2012PresidentObama 59% - 41%
2014GovernorBrown 58% - 42%
2016PresidentClinton 57% - 36%
2018GovernorNewsom 63% - 37%
Attorney GeneralBecerra 61% - 39%
2020PresidentBiden 58% - 39%
2022Senate (Reg.)Padilla 64% - 36%
GovernorNewsom 67% - 33%
Lt. GovernorKounalakis 65% - 35%
Secretary of StateWeber 64% - 36%
Attorney GeneralRob Bonta 65% - 35%
TreasurerMa 65% - 35%
ControllerCohen 66% - 34%
2024PresidentHarris 61% - 36%
Senate (Reg.)Schiff 64% - 36%

Composition

FIPS County CodeCountySeatPopulation
65RiversideRiverside2,492,442
73San DiegoSan Diego3,269,973

Under the 2020 redistricting, California's 48th congressional district is located in Southern California. The district encompasses some of the East County and all of the Mountain Empire areas of San Diego County; and part of southwestern Riverside County. The area in San Diego County includes the cities of Santee, Poway, and northern Escondido; and the census-designated places Ramona, Rancho San Diego, Winter Gardens, Bostonia, Alpine, Campo, Hidden Meadows, Fallbrook, Valley Center, Bonsall, Rainbow, Pala, Borrego Springs, Julian, San Diego Country Estates, Eucalyptus Hills, Lakside, Granite Hills, Jamul, Casa de Oro-Mount Helix, Crest, Harbison Canyon, Descanso, Pine Valley, Mount Laguna, Portero, Boulevard, and Jacumba. The area in Riverside County includes the cities of Temecula and Murrieta; and the census-designated places Aguanga and Lake Riverside.

San Diego County is split between this district, the 49th district, the 50th district, the 51st district, and the 52nd district. The 48th and 49th are partitioned by Gavilan Mountain Rd, Sandia Creek Dr, De Luz Rd, Marine Corps Base Pendleton, Sleeping Indian Rd, Tumbleweed Ln, Del Valle Dr, Highland Oak St, Olive Hill Rd, Via Puerta del Sol, N River Rd, Highway 76, Old River Rd, and Little Gopher Canyon Rd.

The 48th and 50th are partitioned by Gopher Canyon Rd, Escondido Freeway, Mountain Meadow Rd, Hidden Meadows, Reidy Cyn, N Broadway, Cougar Pass Rd, Adagio Way, Calle Ricardo, Tatas Place, Rue Montreux, Jesmond Dene Rd, Ivy Dell Ln, N Centre City Parkway, Highway 15, Richland Rd, Vista Canal, Woodland Parkway, W El Norte Parkway, Bennett Ave, Elser Ln, Nordahl Rd, Calavo Dr, Deodar Rd, Highway 78, Barham Dr, 2315-2339 Meyers Ave, Hill Valley Dr, County Club Dr, Auto Park Way, Highway 56, N Centre City Parkway, W Valley Parkway, N Juniper St, Highway 78, N Hickory St, E Mission Ave, Martin Dr, E Lincoln Ave, N Ash St, E Grand Ave, Bear Valley Parkway, Old Guerjito Rd, San Pasqual Battlefield State Historic Park, San Pasqual Trails Openspace, San Dieguito River Park, Bandy Canyon Rd, Santa Maria Creek, Highland Valley Rd, West Ridge Trail, Palmer Dr/Summerfield Ln, Pomerado Rd, and Carmel Mountain Ranch Openspace.

The 48th and 51st are partitioned by Sabre Springs Openspace, Scripps Miramar Openspace, Beeler Canyon Rd, Sycamore Canyon Openspace, Weston Rd, Boulder Vis, Mast Blvd, West Hills Parkway, San Diego River, Highway 52, Simeon Dr, Mission Trails Openspace, Fanita Dr, Farmington Dr, Lund St, Nielsen St, Paseo de Los Castillos, Gillespie Air Field, Kenney St, San Vicente Freeway, Airport Dr, Wing Ave, W Bradley Ave, Vernon Way, Hart Dr, Greenfield Dr, E Bradley Ave, 830 Adele St-1789 N Mollison Ave, Peppervilla Dr/N Mollison Ave, Pepper Dr, Greta St/Cajon Greens Dr, N Mollison Ave/Buckey Dr, Denver Ln, Broadway Channel, N 2nd St, Flamingo Ave/Greenfield Dr, Dawnridge Ave/Cresthill Rd, Groveland Ter/Camillo Way, Sterling Dr, Kumeyaay Highway, E Madison Ave, Granite Hills Dr, E Lexington Ave, Dehesa Rd, Vista del Valle Blvd, Merritt Ter, E Washington Ave, Merritt Dr, Dewitt Ct, Emerald Heights Rd, Foote Path Way, Highway 8, Lemon Ave, Lake Helix Dr, La Cruz Dr, Carmichael Dr, Bancroft Dr, Campo Rd, and Sweetwater River.

The 48th and 52nd are partitioned by San Miguel Rd, Proctor Valley Rd, Camino Mojave/Jonel Way, Highway 125, Upper Otay Reservoir, Otay Lakes Rd, Otay Valley Regional Park, Alta Rd, and Otay Mountain Truck Trail.

Riverside County is split between this district and the 41st district. They are partitioned by Ortega Highway, Tenaja Truck Trail, NF-7506, Tenaja, San Mateo Creek, Los Alamos Rd, Und 233, S Main Dv, Wildomar, Grand Ave, Rancho Mirlo Dr, Copper Canyon Park, 42174 Kimberly Way-35817 Darcy Pl, Escondido Expressway, Scott Rd, 33477 Little Reb Pl-33516 Pittman Ln, Keller Rd, Menifee Rd, Clinton Keith Rd, Max Gilliss Blvd, Highway 79, Borel Rd, Lake Skinner, Warren Rd, Summitville St, Indian Knoll Rd, E Benton Rd, Rancho California Rd, Overhill Rd, Green Meadow Rd, Crossover Rd, Exa-Ely Rd, Denise Rd, Wiley Rd, Powerline Rd, Wilson Valley Rd, Wilson Creek, Reed Valley Rd, Centennial St, Beaver Ave, and Lake Vista Dr.

Cities and CDPs with 10,000 or more people

  • Escondido – 151,038
  • Murrieta – 113,783
  • Temecula – 111,752
  • Santee – 60,037
  • Poway – 48,841
  • Fallbrook – 32,267
  • Winter Gardens – 22,380
  • Rancho San Diego – 21,858
  • Ramona – 21,468
  • Lakeside – 21,152
  • Casa de Oro-Mount Helix – 19,576
  • Bostonia – 16,882
  • Alpine – 14,696
  • San Diego Country Estates – 10,395
  • Valley Center – 10,087

2,500 – 10,000 people

  • Jamul – 6,179
  • Eucalyptus Hills – 5,517
  • Bonsall – 4,546
  • Hidden Meadows – 4,484
  • Harbison Canyon – 4,048
  • Granite Hills – 3,267
  • Borrego Springs – 3,073
  • Campo – 2,955
  • Crest – 2,828

List of members representing the district

MemberPartyDatesCong
ressElectoral historyCounties
District created January 3, 1993
[[File:Ron Packard.jpg100px]]
Ron Packard
(Oceanside)RepublicannowrapJanuary 3, 1993 –
January 3, 2001Redistricted from the and re-elected in 1992.
Re-elected in 1994.
Re-elected in 1996.
Re-elected in 1998.
Retired.1993–2003
Southern Orange, Riverside (Temecula), Northwestern San Diego
[[File:Darell Issa.gif100px]]
Darrell Issa
(Vista)RepublicannowrapJanuary 3, 2001 –
January 3, 2003Elected in 2000.
Redistricted to the .
[[File:ChrisCox.jpg100px]]
Christopher Cox
(Newport Beach)RepublicannowrapJanuary 3, 2003 –
August 2, 2005Redistricted from the and re-elected in 2002.
Re-elected in 2004.
Resigned to become Chairman of the U.S. Securities and Exchange Commission.2003–2013
[[File:Ca48 109.png300px]]
South-central Orange County
VacantnowrapAugust 2, 2005 –
December 7, 2005
[[File:John Campbell (congressman), official photo portrait, color.jpg100px]]
John Campbell
(Irvine)RepublicannowrapDecember 7, 2005 –
January 3, 2013Elected to finish Cox's term.
Re-elected in 2006.
Re-elected in 2008.
Re-elected in 2010.
Redistricted to the .
[[File:Dana Rohrabacher, Official Portrait, 114th Congress (cropped).jpg100px]]
Dana Rohrabacher
(Costa Mesa)RepublicannowrapJanuary 3, 2013 –
January 3, 2019Redistricted from the and re-elected in 2012.
Re-elected in 2014.
Re-elected in 2016.
Lost re-election.2013–2023
[[File:California US Congressional District 48 (since 2013).tif300px]]
Coastal Orange County (Huntington Beach)
[[File:Harley Rouda, official portrait, 116th Congress.jpg100px]]
Harley Rouda
(Newport Beach)DemocraticnowrapJanuary 3, 2019 –
January 3, 2021Elected in 2018.
Lost re-election.
[[File:MichelleSteel.jpg100px]]
Michelle Steel
(Seal Beach)RepublicannowrapJanuary 3, 2021 –
January 3, 2023Elected in 2020.
Redistricted to the .
[[File:Darrell Issa 117th Congress.jpg100px]]
Darrell Issa
(Bonsall)RepublicannowrapJanuary 3, 2023 –
presentRedistricted from the and re-elected in 2022.
Re-elected in 2024.2023–present:
[[File:California's 48th congressional district (since 2023) (new version).svg300px]]
Central and eastern portions of San Diego county

Election results

District created January 3, 1993.

1992

1994

1996

1998

2000

2002

2004

2005

2006

2008

2010

2012

2014

2016

2018

2020

2022

2024

Historical district boundaries

2003-13

From 2003 through 2013, the district consisted of many of Orange's south-central suburbs, including Irvine, and Newport Beach.

2013-23

Due to redistricting after the 2010 United States census, the district has moved south east along the coast of Orange and then included Laguna Beach and Huntington Beach.

After the 2020 United States census, the district was moved to the inland portion of San Diego County, including Fallbrook, Murrieta, Temecula, Pauma Valley, Warner Springs, Borrego Springs, Santa Ysabel, Julian, Ramona, Poway, Santee, Lakeside, Descanso, Jamul, Dulzura, Alpine, Pine Valley, Campo, Jacumba Hot Springs, all of San Diego's Mountain Empire, San Diego's Indian reservations and portions of northern Escondido, and eastern La Mesa.

References

References

  1. Center for New Media & Promotion (CNMP), US Census Bureau. "My Congressional District".
  2. "2025 Cook PVI℠: District Map and List (119th Congress)".
  3. "California's 48th Congressional District - CA-48 Representatives & District Map - GovTrack.us".
  4. Andrew Gumbel. (2018-11-10). "Republican dubbed 'Russia's favorite congressman' loses seat after 30 years". [[The Guardian]].
  5. https://davesredistricting.org/maps#viewmap::e164e6f9-b758-4c9e-b6bb-332a1386c0cd
  6. (8 November 2022). "Supplement to Statement of Vote".
  7. (5 November 2024). "Supplement to Statement of Vote".
  8. "CA 2026 Congressional".
  9. "California FIPS Codes". National Weather Service.
  10. "Biographical Directory of the United States Congress 1774–2005".
  11. (July 8, 2016). "Ex-Congressman John Campbell asks $6.7 million for Irvine house with 'Bat-cave' garage".
  12. [https://clerk.house.gov/member_info/electionInfo/2016/115-nominations.pdf Nominations] clerk.house.gov
  13. [https://clerk.house.gov/member_info/electionInfo/2018/116-nominations.pdf Nominations] clerk.house.gov
  14. (2024-12-18). "Rep. Michelle Steel gives farewell address from the House floor". Orange County Register.
  15. Service • •, City News. (2025-10-31). "Reps. Darrell Issa, Ronny Jackson file lawsuit opposing Prop 50".
  16. [https://elections.cdn.sos.ca.gov/sov/1992-general/us-representative.pdf 1992 election results]
  17. [https://elections.cdn.sos.ca.gov/sov/1994-general/us-representative.pdf 1994 election results]
  18. [https://elections.cdn.sos.ca.gov/sov/1996-general/us-representative.pdf 1996 election results]
  19. [https://elections.cdn.sos.ca.gov//sov/1998-general/sov28-34.pdf 1998 election results]
  20. [https://elections.cdn.sos.ca.gov/sov/2000-general/us-rep.pdf 2000 election results]
  21. [https://elections.cdn.sos.ca.gov/sov/2002-general/congress.pdf 2002 election results]
  22. [https://elections.cdn.sos.ca.gov/sov/2004-general/us-reps-all-formatted.pdf 2004 election results]
  23. (2005-12-16). "2005 Special Election Results". [[Secretary of State of California]].
  24. [https://elections.cdn.sos.ca.gov/sov/2006-general/congress.pdf 2006 election results]
  25. [https://elections.cdn.sos.ca.gov/sov/2008-general/23_34_us_reps.pdf 2008 election results]
  26. [https://elections.cdn.sos.ca.gov/sov/2010-general/58-united-states-representative.pdf 2010 election results]
  27. [https://elections.cdn.sos.ca.gov/sov/2012-general/12-us-reps.pdf 2012 election results]
  28. [https://elections.cdn.sos.ca.gov/sov/2014-general/pdf/43-congress.pdf 2014 election results]
  29. [https://elections.cdn.sos.ca.gov/sov/2016-general/sov/26-us-reps-formatted.pdf 2016 election results]
  30. [https://elections.cdn.sos.ca.gov/sov/2018-general/sov/48-congress.pdf 2018 election results]
  31. [https://elections.cdn.sos.ca.gov/sov/2020-general/sov/24-us-reps.pdf 2020 election results]
  32. [https://elections.cdn.sos.ca.gov/sov/2022-general/sov/48-congress.pdf 2022 election results]
  33. [https://elections.cdn.sos.ca.gov/sov/2024-general/sov/25-us-rep-congress.pdf 2024 election results]
  34. "The Redistricting Database for the State of California".
Info: Wikipedia Source

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