California's 40th congressional district
From 2023 to 2027, starting with the2022 elections From 2027, starting with the2026 elections Interactive map of district boundaries
Representative	Young Kim R–Anaheim Hills
Population (2024)	744,076
Median household income	$134,956
Ethnicity	48.5%White 25.2%Hispanic 19.0%Asian 4.8%Two or more races 1.6%Black 0.5% other
Cook PVI	R+1[1]

California's 40th congressional district is acongressional district in theU.S. state ofCalifornia, encompassingOrange,San Bernardino, andRiverside counties. The district is currently represented byRepublican Young Kim. It was one of 18 districts that would have voted forJoe Biden in the2020 presidential election had they existed in their current configuration while being won or held by a Republican in2022.

The district includesYorba 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 ofNorth Tustin andCoto de Caza, and parts ofBrea andCorona.

Under the 2020 redistricting, California's 40th congressional district is located inSouthern California, taking up the majority of northern and easternOrange County, and parts of southwesternSan Bernardino and westernRiverside Counties. The area in Orange County includes the cities ofTustin,Yorba Linda,Lake Forest,Laguna Woods,Laguna Hills,Mission Viejo,Rancho Santa Margarita,Brea,Villa Park,Aliso Viejo, easternOrange, and easternAnaheim; and the census-designated placesNorth Tustin,Silverado,Williams Canyon,Modjeska,Trabuco Canyon andCoto de Caza. The area in San Bernardino County includes most of the city ofChino Hills.

Orange County is split between this district, the38th district, the45th district, the46th district, the47th district, and the49th 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 the35th 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.

• Anaheim – 346,824
• 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

• Villa Park – 5,843

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 the37th district andre-elected in 1972. Redistricted to the41st 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 the39th district andre-elected in 1974. Lost renomination.	1975–1983 SouthernOrange, NorthwesternSan 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 CentralOrange
Christopher Cox (Newport Beach)	Republican	January 3, 1989 – January 3, 1993	101st 102nd	Elected in 1988. Re-elected in 1990. Redistricted to the47th district.
Jerry Lewis (Redlands)	Republican	January 3, 1993 – January 3, 2003	103rd 104th 105th 106th 107th	Redistricted from the35th district andre-elected in 1992. Re-elected in 1994. Re-elected in 1996. Re-elected in 1998. Re-elected in 2000. Redistricted to the41st district.	1993–2003 Inyo,San Bernardino
Ed Royce (Fullerton)	Republican	January 3, 2003 – January 3, 2013	108th 109th 110th 111th 112th	Redistricted from the39th district andre-elected in 2002. Re-elected in 2004. Re-elected in 2006. Re-elected in 2008. Re-elected in 2010. Redistricted to the39th district.	2003–2013 NorthernOrange
Lucille Roybal-Allard (Downey)	Democratic	January 3, 2013 – January 3, 2023	113th 114th 115th 116th 117th	Redistricted from the34th district andre-elected in 2012. Re-elected in 2014. Re-elected in 2016. Re-elected in 2018. Re-elected in 2020. Redistricted to the42nd district and retired.	2013–2023 Los Angeles (Downey andEast Los Angeles)
Young Kim (Anaheim Hills)	Republican	January 3, 2023 – present	118th 119th	Redistricted from the39th district andre-elected in 2022. Re-elected in 2024.	2023–present: Parts ofOrange,Riverside andSan 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 ofNorth Tustin andCoto de Caza, and parts ofBrea andCorona.)

The seat was originally one of fivereapportioned toCalifornia after the1970 U.S. census, but its boundaries have shifted radically through successiveredistricting efforts. At various times it has included parts of Orange andSan Diego counties, and from 1993 to 2003 it covered easternSan Bernardino andInyo counties. From 2003 to 2013 the district was based inOrange County. The district covered the cities in the northern part of the county, includingFullerton,Orange,Cypress,Stanton, andBuena Park.

• List of United States congressional districts
• California's congressional districts

• GovTrack.us:California's 40th congressional district
• RAND California Election Returns: District Definitions
• California Voter Foundation map – CD40

33°53′41″N117°55′23″W / 33.894642°N 117.922955°W /33.894642; -117.922955

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