# California's 40th congressional district

California's 40th congressional district is a congressional district in the U.S. state of California, encompassing Orange, San Bernardino, and Riverside counties. The district is currently represented by Republican Young Kim. It was one of 18 districts that would have voted for Joe Biden in the 2020 presidential election had they existed in their current configuration while being won or held by a Republican in 2022.
The district includes Yorba Linda, Anaheim Hills, Orange, Chino Hills, Tustin, Mission Viejo, Aliso Viejo, Rancho Santa Margarita, Laguna Hills, Laguna Woods, Villa Park, Lake Forest, the unincorporated communities of North Tustin and Coto de Caza, and parts of Brea and Corona.

## Recent election results from statewide races

| Year | Office | Results |
| 2008 | President | McCain 56% - 44% |
| 2010 | Governor | Whitman 63% - 32% |
| 2010 | Lt. Governor | Maldonado 53% - 33% |
| 2010 | Secretary of State | Dunn 61% - 32% |
| 2010 | Attorney General | Cooley 66% - 26% |
| 2010 | Treasurer | Walters 58% - 35% |
| 2010 | Controller | Strickland 60% - 32% |
| 2012 | President | Romney 58% - 39% |
| 2014 | Governor | Kashkari 62% - 38% |
| 2016 | President | Trump 49% - 45% |
| 2018 | Governor | Cox 56% - 44% |
| 2018 | Attorney General | Bailey 54% - 46% |
| 2020 | President | Biden 50% - 48% |
| 2022 | Senate (Reg.) | Meuser 54% - 46% |
| 2022 | Governor | Dahle 55% - 45% |
| 2022 | Lt. Governor | Underwood Jacobs 55% - 45% |
| 2022 | Secretary of State | Bernosky 55% - 45% |
| 2022 | Attorney General | Hochman 56% - 44% |
| 2022 | Treasurer | Guerrero 56% - 44% |
| 2022 | Controller | Chen 59% - 41% |
| 2024 | President | Trump 49% - 47% |
| 2024 | Senate (Reg.) | Garvey 54% - 46% |

## Composition

| FIPS County Code | County | Seat | Population |
| 59 | Orange | Santa Ana | 3,135,755 |
| 65 | Riverside | Riverside | 2,492,442 |
| 71 | San Bernardino | San Bernardino | 2,195,611 |
Under the 2020 redistricting, California's 40th congressional district is located in Southern California, taking up the majority of northern and eastern Orange County, and parts of southwestern San Bernardino and western Riverside Counties. The area in Orange County includes the cities of Tustin, Yorba Linda, Lake Forest, Laguna Woods, Laguna Hills, Mission Viejo, Rancho Santa Margarita, Brea, Villa Park, Aliso Viejo, eastern Orange, and eastern Anaheim; and the census-designated places North Tustin, Silverado, Williams Canyon, Modjeska, Trabuco Canyon and Coto de Caza. The area in San Bernardino County includes most of the city of Chino Hills.
Orange County is split between this district, the 38th district, the 45th district, the 46th district, the 47th district, and the 49th district. The 40th and 45th are partitioned by Orange Freeway, E Lambert Rd, Sunrise Rd, Foothill Ln, Wandering Ln, N Associated Rd, E Birch St, S Valencia Ave, La Plaza Dr, La Floresta Dr, La Crescenta Dr, Highway 90, 1053 E Imperial Highway-343 Tolbert St, Vesuvius Dr, Rose Dr, Wabash Ave, 6th St, Golden Ave, Carbon Canyon Creek, E Yorba Linda Blvd, Jefferson St, 1401 Zion Ave-N Van Buren St, Buena Vista Ave, 17225 Orange Blossom Ln-1480 E Howard Pl, 17511 Pine Cir-Orchard Dr, Mariposa Ave, Lakeview Ave, E Miraloma Ave, Fee-Ana St, Sierra Madre Cir, E Orangethorpe Ave, Burlington Northern Santa Fe Railroad, Kensington Ave, N Kraemer Blvd, Carbon Creek, and E La Jolla St.
The 40th and 46th are partitioned by E La Palma Ave, E Jackson Ave, E Frontera St, Santa Ana River, Riverside Freeway, Costa Mesa Freeway, N Tustin St, E Meats Ave, N Orange Olive Rd, Garden Grove Freeway, 16909 Donwest-16791 E Main St, E Chestnut Ave, 16282 E Main St-717 S Lyon St, E McFadden Ave, and Warner Ave.
The 40th, 47th, and 49th are partitioned by Barranca Parkway, Jamboree Rd, Warner Ave, Harvard Ave, Myford Rd, Highway 5, Loma Ridge Nature Preserve, Bee Canyon Access Rd, Portola Parkway, Highway 133, Highway 241, Bake Parkway, San Diego Freeway, Ridge Route Dr, Moulton Parkway, Santa Maria Ave, Via Vista, Alta Vis, Santa Vittoria Dr, Avenida del Sol, Punta Alta, Galle Azul, Bahia Blanca W, Laguna Coast Wilderness Park, Highway S18, Aliso & Wood Canyons, Alicia Parkway, Pacific Park Dr, San Joaquin Hills Trans Corridor, Cabot Rd, San Diego Freeway, Via Escolar, Arroyo Trabuco Creek, Oso Parkway, Thomas F Riley Wilderness Park, and Ronald W Casper's Wilderness Park.
San Bernardino County is split between this district and the 35th district. They are partitioned by Chino Valley Freeway, Eucalyptus Ave, Peyton Dr, Highway 142, Tupelo Ave, Hazelwood Dr, Pipeline Ave, Los Serranos Blvd, Country Club Dr, Soquel Canyon Parkway, Elinvar Dr, Sapphire Rd, Onyx Rd, Copper Rd, Slate Dr, Butterfield Ranch Rd, and Pine Ave.

### Cities and CDPs with 10,000 or more people

* Anaheim – 346,824
* Corona – 157,136
* Orange – 139,911
* Mission Viejo – 93,653
* Lake Forest – 85,858
* Tustin – 80,276
* Chino Hills – 78,411
* Yorba Linda – 68,336
* Aliso Viejo – 52,176
* Rancho Santa Margarita – 47,949
* Brea – 47,325
* Laguna Hills – 31,374
* North Tustin – 25,718
* Laguna Woods – 17,192
* Coto de Caza – 14,710

### 2,500 – 10,000 people

* Villa Park – 5,843

## List of members representing the district

| Member | Party | Dates | Cong ress(es) | Electoral history | Counties |
| District created January 3, 1973 ||||||
| Bob Wilson (San Diego) | Republican | January 3, 1973 – January 3, 1975 | 93rd | Redistricted from the 37th district and re-elected in 1972. Redistricted to the 41st district. | 1973–1975 San Diego (San Diego City Northern half) |
| Andrew J. Hinshaw (Newport Beach) | Republican | January 3, 1975 – January 3, 1977 | 94th | Redistricted from the 39th district and re-elected in 1974. Lost renomination. | 1975–1983 Southern Orange, Northwestern San Diego |
| Robert Badham (Newport Beach) | Republican | January 3, 1977 – January 3, 1989 | 95th 96th 97th 98th 99th 100th | Elected in 1976. Re-elected in 1978. Re-elected in 1980. Re-elected in 1982. Re-elected in 1984. Re-elected in 1986. Retired. | 1975–1983 Southern Orange, Northwestern San Diego |
| Robert Badham (Newport Beach) | Republican | January 3, 1977 – January 3, 1989 | 95th 96th 97th 98th 99th 100th | Elected in 1976. Re-elected in 1978. Re-elected in 1980. Re-elected in 1982. Re-elected in 1984. Re-elected in 1986. Retired. | 1983–1993 Central Orange |
| Christopher Cox (Newport Beach) | Republican | January 3, 1989 – January 3, 1993 | 101st 102nd | Elected in 1988. Re-elected in 1990. Redistricted to the 47th district. | 1983–1993 Central Orange |
| Jerry Lewis (Redlands) | Republican | January 3, 1993 – January 3, 2003 | 103rd 104th 105th 106th 107th | Redistricted from the 35th district and re-elected in 1992. Re-elected in 1994. Re-elected in 1996. Re-elected in 1998. Re-elected in 2000. Redistricted to the 41st district. | 1993–2003 Inyo, San Bernardino |
| Ed Royce (Fullerton) | Republican | January 3, 2003 – January 3, 2013 | 108th 109th 110th 111th 112th | Redistricted from the 39th district and re-elected in 2002. Re-elected in 2004. Re-elected in 2006. Re-elected in 2008. Re-elected in 2010. Redistricted to the 39th district. | 2003–2013 Northern Orange |
| Lucille Roybal-Allard (Downey) | Democratic | January 3, 2013 – January 3, 2023 | 113th 114th 115th 116th 117th | Redistricted from the 34th district and re-elected in 2012. Re-elected in 2014. Re-elected in 2016. Re-elected in 2018. Re-elected in 2020. Redistricted to the 42nd district and retired. | 2013–2023 Los Angeles (Downey and East Los Angeles) |
| Young Kim (Anaheim Hills) | Republican | January 3, 2023 – present | 118th 119th | Redistricted from the 39th district and re-elected in 2022. Re-elected in 2024. | 2023–present: Parts of Orange, Riverside and San Bernardino counties (Yorba Linda, Anaheim Hills, Orange, Chino Hills, Tustin, Mission Viejo, Aliso Viejo, Rancho Santa Margarita, Laguna Hills, Laguna Woods, Villa Park, Lake Forest, the unincorporated communities of North Tustin and Coto de Caza, and parts of Brea and Corona.) |

## Election results
### 1972

1972 United States House of Representatives elections in California :
| Party | Party | Candidate | Votes | % |
| | Republican | Bob Wilson (Incumbent) | 153,648 | 67.8 |
| | Democratic | Frank Caprio | 68,771 | 30.3 |
| | American Independent | Fritjof Thygeson | 4,294 | 1.9 |
| Total votes | Total votes | Total votes | 226,713 | 100.0 |
| | Republican hold | Republican hold | Republican hold | Republican hold |

### 1974

1974 United States House of Representatives elections in California :
| Party | Party | Candidate | Votes | % |
| | Republican | Andrew J. Hinshaw (Incumbent) | 114,895 | 63.4 |
| | Democratic | Roderick J. "Rod" Wilson | 56,195 | 30.9 |
| | American Independent | Grayson L. Watkins | 10,381 | 5.7 |
| Total votes | Total votes | Total votes | 181,471 | 100.0 |
| | Republican hold | Republican hold | Republican hold | Republican hold |

### 1976

1976 United States House of Representatives elections in California :
| Party | Party | Candidate | Votes | % |
| | Republican | Robert Badham | 148,512 | 59.3 |
| | Democratic | Vivian Hall | 102,132 | 40.7 |
| Total votes | Total votes | Total votes | 250,644 | 100.0 |
| | Republican hold | Republican hold | Republican hold | Republican hold |

### 1978

1978 United States House of Representatives elections in California :
| Party | Party | Candidate | Votes | % |
| | Republican | Robert Badham (Incumbent) | 147,882 | 65.9 |
| | Democratic | Jim McGuy | 76,358 | 34.1 |
| Total votes | Total votes | Total votes | 224,240 | 100.0 |
| | Republican hold | Republican hold | Republican hold | Republican hold |

### 1980

1980 United States House of Representatives elections in California :
| Party | Party | Candidate | Votes | % |
| | Republican | Robert Badham (Incumbent) | 213,999 | 70.2 |
| | Democratic | Michael F. Dow | 66,512 | 21.8 |
| | Libertarian | Dan Mahaffey | 24,486 | 8.0 |
| Total votes | Total votes | Total votes | 304,997 | 100.0 |
| | Republican hold | Republican hold | Republican hold | Republican hold |

### 1982

1982 United States House of Representatives elections in California :
| Party | Party | Candidate | Votes | % |
| | Republican | Robert Badham (Incumbent) | 144,228 | 71.5 |
| | Democratic | Paul Hasenman | 52,546 | 26.1 |
| | Peace and Freedom | Maxine Bell Quirk | 4,826 | 2.4 |
| Total votes | Total votes | Total votes | 201,600 | 100.0 |
| | Republican hold | Republican hold | Republican hold | Republican hold |

### 1984

1984 United States House of Representatives elections in California :
| Party | Party | Candidate | Votes | % |
| | Republican | Robert Badham (Incumbent) | 164,257 | 64.4 |
| | Democratic | Carol Ann Bradford | 86,748 | 34.0 |
| | Peace and Freedom | Maxine Bell Quirk | 3,969 | 1.6 |
| Total votes | Total votes | Total votes | 254,974 | 100.0 |
| | Republican hold | Republican hold | Republican hold | Republican hold |

### 1986

1986 United States House of Representatives elections in California :
| Party | Party | Candidate | Votes | % |
| | Republican | Robert Badham (Incumbent) | 119,829 | 59.8 |
| | Democratic | Bruce W. Sumner | 75,664 | 37.7 |
| | Peace and Freedom | Steve Sears | 5,025 | 2.5 |
| Total votes | Total votes | Total votes | 200,518 | 100.0 |
| | Republican hold | Republican hold | Republican hold | Republican hold |

### 1988

1988 United States House of Representatives elections in California :
| Party | Party | Candidate | Votes | % |
| | Republican | Chris Cox | 181,269 | 67.1 |
| | Democratic | Lida Lenney | 80,782 | 29.9 |
| | Libertarian | Roger Bloxham | 4,539 | 1.7 |
| | Peace and Freedom | Gretchen J. Farsai | 3,699 | 1.4 |
| | Independent | Write-ins | 87 | 0.0 |
| Total votes | Total votes | Total votes | 270,376 | 100.0 |
| | Republican hold | Republican hold | Republican hold | Republican hold |

### 1990

1990 United States House of Representatives elections in California :
| Party | Party | Candidate | Votes | % |
| | Republican | Chris Cox (Incumbent) | 142,299 | 67.6 |
| | Democratic | Eugene Gratz | 68,087 | 32.4 |
| Total votes | Total votes | Total votes | 210,376 | 100.0 |
| | Republican hold | Republican hold | Republican hold | Republican hold |

### 1992

1992 United States House of Representatives elections in California :
| Party | Party | Candidate | Votes | % |
| | Republican | Jerry Lewis (Incumbent) | 129,563 | 63.1 |
| | Democratic | Donald M. "Don" Rusk | 63,881 | 31.1 |
| | Peace and Freedom | Margie Akin | 11,839 | 5.8 |
| Total votes | Total votes | Total votes | 205,283 | 100.0 |
| | Republican hold | Republican hold | Republican hold | Republican hold |

### 1994

1994 United States House of Representatives elections in California :
| Party | Party | Candidate | Votes | % |
| | Republican | Jerry Lewis (Incumbent) | 115,728 | 70.7 |
| | Democratic | Donald M. "Don" Rusk | 48,003 | 29.3 |
| Total votes | Total votes | Total votes | 163,731 | 100.0 |
| | Republican hold | Republican hold | Republican hold | Republican hold |

### 1996

1996 United States House of Representatives elections in California :
| Party | Party | Candidate | Votes | % |
| | Republican | Jerry Lewis (Incumbent) | 98,821 | 65.0 |
| | Democratic | Robert Conaway | 44,102 | 29.0 |
| | American Independent | Hale McGee | 4,963 | 3.2 |
| | Libertarian | Joseph Kelly | 4,375 | 2.8 |
| Total votes | Total votes | Total votes | 132,261 | 100.0 |
| | Republican hold | Republican hold | Republican hold | Republican hold |

### 1998

1998 United States House of Representatives elections in California :
| Party | Party | Candidate | Votes | % |
| | Republican | Jerry Lewis (Incumbent) | 97,406 | 64.9 |
| | Democratic | Robert "Bob" Conaway | 47,897 | 31.9 |
| | Libertarian | Maurice Mayben | 4,822 | 3.2 |
| Total votes | Total votes | Total votes | 150,125 | 100.0 |
| | Republican hold | Republican hold | Republican hold | Republican hold |

### 2000

2000 United States House of Representatives elections in California :
| Party | Party | Candidate | Votes | % |
| | Republican | Jerry Lewis (Incumbent) | 151,069 | 80.0 |
| | Natural Law | Frank N. Schmidt | 19,029 | 10.0 |
| | Libertarian | Jay Lindberg | 18,924 | 10.0 |
| Total votes | Total votes | Total votes | 189,022 | 100.0 |
| | Republican hold | Republican hold | Republican hold | Republican hold |

### 2002

2002 United States House of Representatives elections in California :
| Party | Party | Candidate | Votes | % |
| | Republican | Ed Royce (Incumbent) | 92,422 | 67.7 |
| | Democratic | Christina Avalos | 40,265 | 29.5 |
| | Libertarian | Charles R. "Chuck" McGlawn | 3,955 | 2.8 |
| Total votes | Total votes | Total votes | 136,642 | 100.0 |
| | Republican hold | Republican hold | Republican hold | Republican hold |

### 2004

2004 United States House of Representatives elections in California :
| Party | Party | Candidate | Votes | % |
| | Republican | Ed Royce (Incumbent) | 189,336 | 68.0 |
| | Democratic | Tilman Williams | 69,684 | 32.0 |
| Total votes | Total votes | Total votes | 259,020 | 100.0 |
| | Republican hold | Republican hold | Republican hold | Republican hold |

### 2006

2006 United States House of Representatives elections in California :
| Party | Party | Candidate | Votes | % |
| | Republican | Ed Royce (Incumbent) | 100,995 | 66.8 |
| | Democratic | Florice Orea Hoffman | 46,418 | 30.7 |
| | Libertarian | Philip H. Inman | 3,876 | 2.5 |
| Total votes | Total votes | Total votes | 151,289 | 100.0 |
| | Republican hold | Republican hold | Republican hold | Republican hold |

### 2008

2008 United States House of Representatives elections in California :
| Party | Party | Candidate | Votes | % |
| | Republican | Ed Royce (Incumbent) | 144,923 | 62.6 |
| | Democratic | Christina Avalos | 86,772 | 37.4 |
| Total votes | Total votes | Total votes | 231,695 | 100.0 |
| | Republican hold | Republican hold | Republican hold | Republican hold |

### 2010

2010 United States House of Representatives elections in California :
| Party | Party | Candidate | Votes | % |
| | Republican | Ed Royce (Incumbent) | 119,455 | 66.8 |
| | Democratic | Christina Avalos | 59,400 | 33.2 |
| Total votes | Total votes | Total votes | 178,855 | 100.0 |
| | Republican hold | Republican hold | Republican hold | Republican hold |

### 2012

2012 United States House of Representatives elections in California :
| Party | Party | Candidate | Votes | % |
| | Democratic | Lucille Roybal-Allard (Incumbent) | 73,940 | 58.9 |
| | Democratic | David Sanchez | 51,613 | 41.1 |
| Total votes | Total votes | Total votes | 125,553 | 100.0 |
| | Democratic hold | Democratic hold | Democratic hold | Democratic hold |

### 2014

2014 United States House of Representatives elections in California :
| Party | Party | Candidate | Votes | % |
| | Democratic | Lucille Roybal-Allard (Incumbent) | 30,208 | 61.2 |
| | Democratic | David Sanchez | 19,171 | 38.8 |
| Total votes | Total votes | Total votes | 49,379 | 100.0 |
| | Democratic hold | Democratic hold | Democratic hold | Democratic hold |

### 2016

2016 United States House of Representatives elections in California :
| Party | Party | Candidate | Votes | % |
| | Democratic | Lucille Roybal-Allard (Incumbent) | 106,554 | 81.2 |
| | Independent | Roman Gonzalez | 24,743 | 18.8 |
| Total votes | Total votes | Total votes | 131,297 | 100.0 |
| | Democratic hold | Democratic hold | Democratic hold | Democratic hold |

### 2018

2018 United States House of Representatives elections in California :
| Party | Party | Candidate | Votes | % |
| | Democratic | Lucille Roybal-Allard (Incumbent) | 93,938 | 77.3 |
| | Green | Rodolfo Cortes Barragan | 27,511 | 22.7 |
| Total votes | Total votes | Total votes | 121,449 | 100.0 |
| | Democratic hold | Democratic hold | Democratic hold | Democratic hold |

### 2020

2020 United States House of Representatives elections in California :
| Party | Party | Candidate | Votes | % |
| | Democratic | Lucille Roybal-Allard (incumbent) | 135,572 | 72.7 |
| | Republican | C. Antonio Delgado | 50,809 | 27.3 |
| Total votes | Total votes | Total votes | 186,381 | 100.0 |
| | Democratic hold | Democratic hold | Democratic hold | Democratic hold |

### 2022

2022 United States House of Representatives elections in California :
| Party | Party | Candidate | Votes | % |
| | Republican | Young Kim (incumbent) | 161,589 | 56.8 |
| | Democratic | Asif Mahmood | 122,722 | 43.2 |
| Total votes | Total votes | Total votes | 284,311 | 100.0 |
| | Republican hold | Republican hold | Republican hold | Republican hold |

### 2024

2024 United States House of Representatives elections in California :
| Party | Party | Candidate | Votes | % |
| | Republican | Young Kim (incumbent) | 211,998 | 55.3 |
| | Democratic | Joe Kerr | 171,637 | 44.7 |
| Total votes | Total votes | Total votes | 383,635 | 100.0 |
| | Republican hold | Republican hold | Republican hold | Republican hold |

## Historical district boundaries

The seat was originally one of five reapportioned to California after the 1970 U.S. census, but its boundaries have shifted radically through successive redistricting efforts. At various times it has included parts of Orange and San Diego counties, and from 1993 to 2003 it covered eastern San Bernardino and Inyo counties. From 2003 to 2013 the district was based in Orange County. The district covered the cities in the northern part of the county, including Fullerton, Orange, Cypress, Stanton, and Buena Park.