California's 48th congressional district is a

congressional district Congressional districts, also known as electoral districts in other nations, are divisions of a larger administrative region that represent the population of a region in the larger congressional body. Countries with congressional districts includ ...

in the

U.S. state In the United States, a state is a constituent political entity, of which there are 50. Bound together in a political union, each state holds governmental jurisdiction over a separate and defined geographic territory where it shares its so ...

California California () is a U.S. state, state in the Western United States that lies on the West Coast of the United States, Pacific Coast. It borders Oregon to the north, Nevada and Arizona to the east, and shares Mexico–United States border, an ...

that covers East County, San Diego as well as the

Temecula Valley The Temecula Valley (Spanish language, Spanish: ''Valle de Temecula'') is a graben rift valley in western Riverside County, California. The Temecula Valley is one of the graben valleys making up the Elsinore Trough, created by the Elsinore Fau ...

. Major cities in the district include

Temecula Temecula (; , ; Luiseño: ''Temeekunga'') is a city in southwestern Riverside County, California, United States. The city had a population of 110,003 as of the 2020 census and was incorporated on December 1, 1989. The city is a tourist and ...

, Murrieta, and portions of Escondido. It is currently represented by Republican

Darrell Issa Darrell Edward Issa ( ; born November 1, 1953) is an American businessman and politician serving as the U.S. representative for California's 48th congressional district. He represented the 50th congressional district from 2021 to 2023. A memb ...

. From 2013 to 2023, the district included

Costa Mesa Costa may refer to: Biology * Rib (Latin: ''costa''), in vertebrate anatomy * Costa (botany), the central strand of a plant leaf or thallus * Costa (coral), a stony rib, part of the skeleton of a coral * Costa (entomology), the leading edge o ...

Emerald Bay Emerald Bay may refer to: Geography * Emerald Bay, Catalina Island, California * Emerald Bay, Orange County, California * Emerald Bay State Park in El Dorado County, California * Emerald Bay, Lake Arrowhead, California * Emerald Bay, Texas Othe ...

, Fountain Valley,

Huntington Beach Huntington Beach is a seaside city in Orange County, California, United States. The city was originally called Pacific City, but it was changed in 1903 to be named after American businessman Henry E. Huntington. The population was 198,711 as o ...

Laguna Beach Laguna Beach (; ''Laguna'', Spanish for "Lagoon") is a city in Orange County, California, United States. Located in Southern California along the Pacific Ocean, this seaside resort city has a mild year-round climate, scenic coves, and environ ...

Laguna Niguel Laguna Niguel () is a city in Orange County, California, United States. The name Laguna Niguel is derived from the words "Laguna" (Spanish for "lagoon") and "Niguili" (the name of a Native American village once located near Aliso Creek). It al ...

Newport Beach Newport Beach is a coastal city of about 85,000 in southern Orange County, California, United States. Located about southeast of downtown Los Angeles, Newport Beach is known for its sandy beaches. The city's harbor once supported maritime indu ...

, Seal Beach, Sunset Beach and parts of Garden Grove,

Midway City Midway City is an unincorporated community and census-designated place (CDP) that forms part of the county land controlled by Orange County, California. The only area in Orange County that incorporates its chamber of commerce and homeowners as ...

, Aliso Viejo, Santa Ana and

Westminster Westminster is the main settlement of the City of Westminster in Central London, Central London, England. It extends from the River Thames to Oxford Street and has many famous landmarks, including the Palace of Westminster, Buckingham Palace, ...

. 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 Dana Tyrone Rohrabacher ( ; born June 21, 1947) is an American former politician who served in the United States House of Representatives, U.S. House of Representatives from 1989 to 2019. Representing for the last three terms of his House tenure ...

. Rouda was then defeated by Republican

Michelle Steel Michelle Eunjoo Steel ( Park, born June 21, 1955) is an American politician who served as the U.S. representative for California's 45th congressional district from 2023 to 2025, previously representing the 48th congressional district from 20 ...

in the 2020 elections. From 2003 to 2013, the district included the cities of Aliso Viejo, Dana Point, Irvine,

, Laguna Hills,

Laguna Woods Laguna Woods (''Laguna'' being ) is a city in Orange County, California, United States. The population was 17,644 at the 2020 census, up from 16,192 at the 2010 census, with a median age of 74.5 (as of 2021). Laguna Woods became Orange Coun ...

, Lake Forest (formerly known as El Toro), Tustin, parts of Irvine and parts of

and San Juan Capistrano.

Recent election results from statewide races

Composition

Under the 2020 redistricting, California's 48th congressional district is located in

Southern California Southern California (commonly shortened to SoCal) is a geographic and Cultural area, cultural List of regions of California, region that generally comprises the southern portion of the U.S. state of California. Its densely populated coastal reg ...

. The district encompasses some of the East County and all of the Mountain Empire areas of

San Diego County San Diego County (), officially the County of San Diego, is a county in the southwest corner of the U.S. state of California, north to its border with Mexico. As of the 2020 census, the population was 3,298,634; it is the second-most populous ...

; and part of southwestern

Riverside County Riverside County is a county located in the southern portion of the U.S. state of California. As of the 2020 census, its population was 2,418,185, making it the fourth-most populous county in California and the 10th-most populous in the Unit ...

. The area in San Diego County includes the cities of Santee,

Poway Poway () is a city in San Diego County, California, United States. Poway's rural roots influenced its motto "The City in the Country". The city had a population of 48,841 as of the 2020 United States census. Poway is part of San Diego's Eas ...

, and northern Escondido; and the census-designated places Ramona, Rancho San Diego, Winter Gardens, Bostonia, Alpine, Campo, Hidden Meadows, Fallbrook, Valley Center, Bonsall,

Rainbow A rainbow is an optical phenomenon caused by refraction, internal reflection and dispersion of light in water droplets resulting in a continuous spectrum of light appearing in the sky. The rainbow takes the form of a multicoloured circular ...

, Pala,

Borrego Springs Borrego Springs (''borrego'' is Spanish for "sheep") is a census-designated place (CDP) in northeastern San Diego County, California. It is located within the Low Desert area of Southern California. The population was 3,073 at the 2020 census. ...

, Julian,

San Diego Country Estates San Diego Country Estates, commonly referred to as The Estates, is a valley resort populace composed of several neighborhoods associated with the unincorporated community of Ramona, California. The Estates is a census-designated place in North Co ...

, Eucalyptus Hills, Lakside, Granite Hills, Jamul, Casa de Oro-Mount Helix, Crest, Harbison Canyon, Descanso, Pine Valley,

Mount Laguna Mount Laguna is a small census-designated place (CDP) in San Diego County, California. It is approximately above sea level in a forest of Jeffrey pine, east of San Diego in the Laguna Mountains on the eastern edge of the Cleveland National Fores ...

, Portero,

Boulevard A boulevard is a type of broad avenue planted with rows of trees, or in parts of North America, any urban highway or wide road in a commercial district. In Europe, boulevards were originally circumferential roads following the line of former ...

, and Jacumba. The area in Riverside County includes the cities of

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 *

– 111,752 * Santee – 60,037 *

– 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 *

– 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 *

– 3,073 * Campo – 2,955 * Crest – 2,828

List of members representing the district

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

2013-23

Due to

redistricting Redistricting in the United States is the process of drawing electoral district boundaries. For the United States House of Representatives, and state legislatures, redistricting occurs after each ten-year census. The U.S. Constitution in Art ...

after the 2010 United States census, the district has moved south east along the coast of Orange and then included

and

. After the 2020 United States census, the district was moved to the inland portion of

, including Fallbrook, Murrieta,

, Pauma Valley,

Warner Springs Warner Springs is set of springs and a small unincorporated area, unincorporated community in northern San Diego County, California. It is on the Pacific Crest Trail. Geography Warner Springs has a post office; its ZIP Code is 92086. It is loca ...

, Santa Ysabel, Julian, Ramona,

, Santee, Lakeside, Descanso, Jamul, Dulzura, Alpine, Pine Valley, Campo, Jacumba Hot Springs, all of San Diego's Mountain Empire, San Diego's

Indian reservations An American Indian reservation is an area of land land tenure, held and governed by a List of federally recognized tribes in the contiguous United States#Description, U.S. federal government-recognized Native American tribal nation, whose gov ...

and portions of northern Escondido, and eastern La Mesa.See 48th congressional district, Congressional district maps for 2021 redistricting at

References

External links

*GovTrack.us
California's 48th congressional districtCalifornia Voter Foundation map - CD48
{{DEFAULTSORT:California's 48th Congressional District 48 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