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California's 48th congressional district
Interactive map of district boundaries since 2023 (Used in the 2022 elections)
Representative	Darrell Issa R–San Diego
Population (2023)	740,583
Median household income	$111,073
Ethnicity	53.3% White 29.4% Hispanic 6.9% Asian 5.4% Two or more races 3.1% Black 1.0% Native American 0.9% other
Cook PVI	R+9
Created	1993

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

Composition

As of 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.

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. The 48th district takes in the cities of Santee, Poway, and northern Escondido, as well as 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.

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. The 48th district takes in the cities of Temecula and Murrieta and the census-designated places Aguanga and Lake Riverside.

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

Member	Party	Dates	Cong ress	Electoral history	Counties
District created January 3, 1993
Ron Packard (Oceanside)	Republican	January 3, 1993 – January 3, 2001	103rd 104th 105th 106th	Redistricted from the 43rd district 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
Darrell Issa (Vista)	Republican	January 3, 2001 – January 3, 2003	107th	Elected in 2000. Redistricted to the 49th district.
Christopher Cox (Newport Beach)	Republican	January 3, 2003 – August 2, 2005	108th 109th	Redistricted from the 47th district and re-elected in 2002. Re-elected in 2004. Resigned to become Chairman of the U.S. Securities and Exchange Commission.	2003–2013 South-central Orange County
Vacant		August 2, 2005 – December 7, 2005	109th
John Campbell (Irvine)	Republican	December 7, 2005 – January 3, 2013	109th 110th 111th 112th	Elected to finish Cox's term. Re-elected in 2006. Re-elected in 2008. Re-elected in 2010. Redistricted to the 45th district.
Dana Rohrabacher (Costa Mesa)	Republican	January 3, 2013 – January 3, 2019	113th 114th 115th	Redistricted from the 46th district and re-elected in 2012. Re-elected in 2014. Re-elected in 2016. Lost re-election.	2013–2023 Coastal Orange County (Huntington Beach)
Harley Rouda (Newport Beach)	Democratic	January 3, 2019 – January 3, 2021	116th	Elected in 2018. Lost re-election.
Michelle Steel (Surfside)	Republican	January 3, 2021 – January 3, 2023	117th	Elected in 2020. Redistricted to the 45th district.
Darrell Issa (San Diego)	Republican	January 3, 2023 – present	118th 119th	Redistricted from the 50th district and re-elected in 2022. Re-elected in 2024.	2023–present: 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

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.

See also

• List of United States congressional districts
• California's congressional districts
• California 48th congressional district special election, 2005

References

1. Center for New Media & Promotion (CNMP), US Census Bureau. "My Congressional District". www.census.gov. Retrieved September 21, 2024.
2. "2022 Cook PVI: District Map and List". Cook Political Report. July 12, 2022. Retrieved January 10, 2023.
3. "California's 48th Congressional District - CA-48 Representatives & District Map - GovTrack.us". GovTrack.us.
4. Andrew Gumbel (November 10, 2018). "Republican dubbed 'Russia's favorite congressman' loses seat after 30 years". The Guardian. Retrieved November 10, 2018.
5. https://davesredistricting.org/maps#viewmap::e164e6f9-b758-4c9e-b6bb-332a1386c0cd
6. "Complete Supplement to the Statement of Vote" (PDF). November 8, 2022. Archived (PDF) from the original on January 8, 2025. Retrieved January 21, 2025.
7. California 2022-11-08 results by district (@elium2) (Report).
8. https://docs.google.com/spreadsheets/d/12fqRe8rBbIWwwOjZNlx7oPvU8kEg1Oh8/edit?gid=17269705#gid=17269705
9. ^ "Biographical Directory of the United States Congress 1774–2005" (PDF). govinfo.gov. Retrieved February 19, 2024.
10. "Ex-Congressman John Campbell asks $6.7 million for Irvine house with 'Bat-cave' garage". July 8, 2016.
11. Nominations clerk.house.gov
12. Nominations clerk.house.gov
13. Nominations clerk.house.gov
14. Washington, U. S. Capitol Room H154; p:225-7000, DC 20515-6601. "Darrell Issa (California (CA)), 118th Congress Profile". Office of the Clerk, U.S. House of Representatives. Retrieved January 18, 2024.{{cite web}}: CS1 maint: numeric names: authors list (link)
15. 1992 election results
16. 1994 election results
17. 1996 election results
18. 1998 election results
19. 2000 election results
20. 2002 election results
21. 2004 election results
22. "2005 Special Election Results" (PDF). Secretary of State of California. December 16, 2005. Retrieved September 15, 2019.
23. 2006 election results
24. 2008 election results
25. 2010 election results
26. 2012 election results
27. 2014 election results
28. 2016 election results
29. 2018 election results
30. 2020 election results
31. 2022 election results
32. See 48th congressional district, Congressional district maps for 2021 redistricting at "The Redistricting Database for the State of California".

External links

• GovTrack.us: California's 48th congressional district
• RAND California Election Returns: District Definitions
• California Voter Foundation map - CD48

33°37′06″N 117°52′19″W / 33.618408°N 117.871971°W / 33.618408; -117.871971

• Congressional districts of California
• Government of Orange County, California
• Aliso Viejo, California
• Costa Mesa, California
• Fountain Valley, California
• Garden Grove, California
• Huntington Beach, California
• Laguna Beach, California
• Laguna Niguel, California
• Newport Beach, California
• Santa Ana, California
• Seal Beach, California
• Westminster, California
• Constituencies established in 1993
• 1993 establishments in California