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California's 31st congressional district

U.S. House district for California

U.S. House district for California

FieldValue
stateCalifornia
district number31
image name{{switcher
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image captionInteractive map of district boundaries
representative
party
residence
population724,696
population year2024
median income$90,291
percent white15.0
percent hispanic60.6
percent black2.3
percent asian19.6
percent more than one race1.8
percent other race0.7
cpviD+10

| |From 2023 to 2027, starting with the 2022 elections | |From 2027, starting with the 2026 elections | percent more than one race = 1.8

California's 31st congressional district is a congressional district in Los Angeles County, in the U.S. state of California. The district is located in the San Gabriel Valley and contains most of the Hispanic-majority areas in that region.

From January 3, 2023, following the 2020 redistricting cycle, the district is currently represented by Democrat Gil Cisneros.

Recent election results from statewide races

2023–2027 boundaries

YearOfficeResults
2008PresidentObama 63% - 36%
2010GovernorBrown 57% - 37%
Lt. GovernorNewsom 51% - 36%
Secretary of StateBowen 56% - 35%
Attorney GeneralHarris 47% - 45%
TreasurerLockyer 60% - 32%
ControllerChiang 56% - 34%
2012PresidentObama 66% - 34%
2014GovernorBrown 59% - 41%
2016PresidentClinton 66% - 29%
2018GovernorNewsom 64% - 36%
Attorney GeneralBecerra 67% - 33%
2020PresidentBiden 64% - 33%
2022Senate (Reg.)Padilla 61% - 39%
GovernorNewsom 58% - 42%
Lt. GovernorKounalakis 59% - 41%
Secretary of StateWeber 59% - 41%
Attorney GeneralBonta 58% - 42%
TreasurerMa 58% - 42%
ControllerCohen 56% - 44%
2024PresidentHarris 57% - 40%
Senate (Reg.)Schiff 57% - 43%

Composition

FIPS County CodeCountySeatPopulation
37Los AngelesLos Angeles9,663,345

Under the 2020 redistricting, California's 31st congressional district is located in Southern California, taking up part of eastern Los Angeles County. It includes the cities of El Monte, West Covina, Baldwin Park, Azusa, San Dimas, La Verne, Duarte, South El Monte, Industry, La Puente, Bradbury, Irwindale, and Covina; the south sides of the cities of Glendora and Monrovia; and the census-designated places Avocado Heights, North El Monte, South San Jose Hills, West Puente Valley, Valinda, Mayflower Village, South Monrovia Island, Vincent, Citrus, and Charter Oak.

Los Angeles County is split between this district, the 28th district, the 34th district, and the 38th district. The 31st and the 28th are partitioned by Rio Hondo River, Garvey Ave, Highway 19, Highway 10, Eaton Wash, Temple City Blvd, Valley Blvd, Ellis Ln, Lower Azusa Rd, Grande Ave, Santa Anita Ave, Lynrose St, Flood Control Basin, Peck Rd, Randolph St, Cogswell Rd, Clark St, Durfree Ave, Santa Anita Wash, S 10th Ave, Jeffries Ave, Mayflower/Fairgreen Ave, Alta Vista/Fairgreen Ave, El Norte Ave, S 5th Ave, Valencia Way/N 5th Ave, Hillcrest Blvd, E Hillcrest Blvd, Grand Ave, E Greystone Ave, N Bradoaks Ave, Angeles National Forest, W Fork Rd, Highway 39, Cedar Creek, Iron Fork, Glendora Mountain Rd, Morris Reservoir, W Sierra Madre Ave, N Lorraine Ave, E Foothill Blvd, E Carroll Ave, Steffen St, S Lorraine Ave, AT and SF Railway, E Route 66, N Cataract Ave, San Dimas Canyon Rd, Clayton Ct, Live Oak Canyon, Rotary Dr, Highway 30, Williams Ave, Highway 210, Garey Ave, and Summer Ave.

The 31st, 35th, and 38th are partitioned by Whittier Narrows Recreation Area, N Lexington-Gallatin Rd, N Durfree Ave, E Thienes Ave, E Rush St, N Burkett Rd, Cunningham Dr, Eaglemont Dr, Oakman Dr, Arciero Dr, Grossmont Dr, Workman Mill Rd, Bunbury Dr, Fontenoy Ave, Ankerton, Whittier Woods Circle, Union Pacific Railroad, San Gabriel Freeway, N Peck Rd, Mission Mill Rd, Rose Hills Rd, Wildwood Dr, Clark Ave, San Jose Creek, Turnbull Canyon Rd, E Gale Ave, Pomona Freeway, Colima Rd, E Walnut Dr N, Nogales St, E Walnut Dr S, Fairway Dr, E Valley Blvd, Calle Baja, La Puente Rd, S Sentous Ave, N Nogales St, Amar Rd, Walnut City Parkland, San Bernardino Freeway, Fairplex Dr, Via Verde, Puddingstone Reservoir, McKinley Ave, N Whittle Ave, Arrow Highway, Fulton Rd, and Foothill Blvd.

Cities and CDPs with 10,000 or more people

  • West Covina – 109,501
  • El Monte – 109,450
  • Baldwin Park – 72,176
  • Glendora – 52,558
  • Covina – 51,268
  • Azusa – 50,000
  • La Puente – 38,062
  • Monrovia – 37,931
  • San Dimas – 34,064
  • La Verne – 31,334
  • West Puente Valley – 22,959
  • Valinda – 22,437
  • Duarte – 21,727
  • South San Jose Hills – 19,855
  • South El Monte – 19,567
  • Vincent – 15,714
  • Avocado Heights – 13,317
  • Citrus – 10,243

2,500 to 10,000 people

  • Charter Oak – 9,739
  • South Monrovia Island – 6,515
  • Mayflower Village – 5,402
  • North El Monte – 3,730

List of members representing the district

MemberPartyDatesCong
ress(es)Electoral historyCounties
District created January 3, 1963
[[File:1971 p23 Charles H Wilson.jpg100px]]
Charles H. Wilson
(Hawthorne)DemocraticJanuary 3, 1963 –
January 3, 1981Elected in 1962.
Re-elected in 1964.
Re-elected in 1966.
Re-elected in 1968.
Re-elected in 1970.
Re-elected in 1972.
Re-elected in 1974.
Re-elected in 1976.
Re-elected in 1978.
Lost re-nomination.1963–1969
Los Angeles
1969–1973
Los Angeles
1973–1975
Los Angeles
1975–1983
Los Angeles
[[File:Mervyn M. Dymally.jpg100px]]
Mervyn M. Dymally
(Compton)DemocraticJanuary 3, 1981 –
January 3, 1993Elected in 1980.
Re-elected in 1982.
Re-elected in 1984.
Re-elected in 1986.
Re-elected in 1988.
Re-elected in 1990.
Retired.
1983–1993
Los Angeles (Carson, Compton)
[[File:Matthew G Martinez.jpg100px]]
Matthew G. Martínez
(Monterey Park)DemocraticnowrapJanuary 3, 1993 –
July 27, 2000Redistricted from the and re-elected in 1992.
Re-elected in 1994.
Re-elected in 1996.
Re-elected in 1998.
Lost re-nomination.1993–2003
Los Angeles (Baldwin Park, East L.A.)
RepublicannowrapJuly 27, 2000 –
January 3, 2001Switched to Republican Party after losing re-nomination.
[[File:Hilda Solis official DOL portrait.jpg100px]]
Hilda Solis
(El Monte)DemocraticnowrapJanuary 3, 2001 –
January 3, 2003Elected in 2000.
Redistricted to the .
[[File:Xavierbecerra.jpeg100px]]
Xavier Becerra
(Los Angeles)DemocraticnowrapJanuary 3, 2003 –
January 3, 2013Redistricted from the and re-elected in 2002.
Re-elected in 2004.
Re-elected in 2006.
Re-elected in 2008.
Re-elected in 2010.
Redistricted to the .2003–2013
[[File:CA-31st.png300px]]
Los Angeles (Hollywood, Northeast L.A.)
[[File:GaryMiller.jpg100px]]
Gary Miller
(Rancho Cucamonga)RepublicannowrapJanuary 3, 2013 –
January 3, 2015Redistricted from the and re-elected in 2012.
Retired.2013–2023
[[File:California US Congressional District 31 (since 2013).tif300px]]
Inland Empire including San Bernardino and Rancho Cucamonga
[[File:Pete Aguilar Official Portrait, 115th Congress.jpg100px]]
Pete Aguilar
(Redlands)DemocraticnowrapJanuary 3, 2015 –
January 3, 2023Elected in 2014.
Re-elected in 2016.
Re-elected in 2018.
Re-elected in 2020.
Redistricted to the .
[[File:Rep-Napolitano.jpg100px]]
Grace Napolitano
(Norwalk)DemocraticnowrapJanuary 3, 2023 –
January 3, 2025Redistricted from the and re-elected in 2022.
Retired.2023–present
[[File:California's 31st congressional district (since 2023) (new version).svg300px]]
Arcadia, El Monte, Baldwin Park, Duarte, West Covina, Covina, Azusa, southern Glendora, and most of Ramona in eastern Los Angeles County
[[File:Cisneros Gil 119th Congress 2.jpg100px ]]
Gil Cisneros
(Covina)DemocraticJanuary 3, 2025
presentElected in 2024.

Election results

1962

1964

1966

1968

1970

1972

1974

1976

1978

1980

1982

1984

1986

1988

1990

1992

1994

1996

1998

2000

2002

2004

2006

2008

2010

2012

2014

2016

2018

2020

2022

Historical district boundaries

Formerly, from 2003 to 2013, the district was the only congressional district entirely based within the City of Los Angeles, and included Hollywood and some predominantly Hispanic/Latino sections of central and northeast Los Angeles.

References

References

  1. [https://www.census.gov/mycd/?st=06&cd=31 US Census]
  2. "2025 Cook PVI℠: District Map and List (119th Congress)".
  3. "CA 2022 Congressional".
  4. (8 November 2022). "Supplement to Statement of Vote".
  5. (5 November 2024). "Supplement to Statement of Vote".
  6. "California FIPS Codes". National Weather Service.
  7. [http://clerk.house.gov/member_info/electionInfo/1962election.pdf 1962 election results]
  8. [http://clerk.house.gov/member_info/electionInfo/1964election.pdf 1964 election results]
  9. [http://clerk.house.gov/member_info/electionInfo/1966election.pdf 1966 election results]
  10. [http://clerk.house.gov/member_info/electionInfo/1968election.pdf 1968 election results]
  11. [http://clerk.house.gov/member_info/electionInfo/1970election.pdf 1970 election results]
  12. [http://clerk.house.gov/member_info/electionInfo/1972election.pdf 1972 election results]
  13. [http://clerk.house.gov/member_info/electionInfo/1974election.pdf 1974 election results]
  14. [http://clerk.house.gov/member_info/electionInfo/1976election.pdf 1976 election results]
  15. [http://clerk.house.gov/member_info/electionInfo/1978election.pdf 1978 election results]
  16. [http://clerk.house.gov/member_info/electionInfo/1980election.pdf 1980 election results]
  17. [http://clerk.house.gov/member_info/electionInfo/1982election.pdf 1982 election results]
  18. [http://clerk.house.gov/member_info/electionInfo/1984election.pdf 1984 election results]
  19. [http://clerk.house.gov/member_info/electionInfo/1986election.pdf 1986 election results]
  20. [http://clerk.house.gov/member_info/electionInfo/1988election.pdf 1988 election results]
  21. [http://clerk.house.gov/member_info/electionInfo/1990election.pdf 1990 election results]
  22. [http://clerk.house.gov/member_info/electionInfo/1992election.pdf 1992 election results]
  23. [http://clerk.house.gov/member_info/electionInfo/1994election.pdf 1994 election results]
  24. [http://clerk.house.gov/member_info/electionInfo/1996election.pdf 1996 election results]
  25. [http://clerk.house.gov/member_info/electionInfo/1998election.pdf 1998 election results]
  26. [http://clerk.house.gov/member_info/electionInfo/2000election.pdf 2000 election results]
  27. [https://elections.cdn.sos.ca.gov/sov/2002-general/congress.pdf 2002 election results]
  28. [https://elections.cdn.sos.ca.gov/sov/2004-general/us-reps-all-formatted.pdf 2004 election results]
  29. [https://elections.cdn.sos.ca.gov/sov/2006-general/congress.pdf 2006 election results]
  30. [https://elections.cdn.sos.ca.gov/sov/2008-general/23_34_us_reps.pdf 2008 election results]
  31. [https://elections.cdn.sos.ca.gov/sov/2010-general/58-united-states-representative.pdf 2010 election results]
  32. [https://elections.cdn.sos.ca.gov/sov/2012-general/12-us-reps.pdf 2012 election results]
  33. [https://elections.cdn.sos.ca.gov/sov/2014-general/pdf/43-congress.pdf 2014 election results]
  34. [https://elections.cdn.sos.ca.gov/sov/2016-general/sov/26-us-reps-formatted.pdf 2016 election results]
  35. [https://elections.cdn.sos.ca.gov/sov/2018-general/sov/48-congress.pdf 2018 election results]
Info: Wikipedia Source

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