California State Senate District 18

State Legislative District Profile (Upper Chamber)

Overview

District ID
ca-sd-018
State
California
Chamber
Upper chamber (state senate)
District Code
018
Land Area
10,475.7 sq mi
Water Area
426.5 sq mi

Boundary

Boundary of California State Senate District 18

Boundary as GeoJSON

Source: U.S. Census Bureau TIGER/Line state legislative district boundaries.

Counties

CountyOverlapShare of district landShare of county land
Imperial County4175.54 sq mi39.9%100.0%
Riverside County2961.98 sq mi28.3%41.1%
San Bernardino County2581.49 sq mi24.6%12.9%
San Diego County756.31 sq mi7.2%18.0%

Showing all 4 counties

Places

PlaceOverlapShare of district landShare of place land
Chula Vista city49.64 sq mi0.5%100.0%
San Diego city38.89 sq mi0.4%11.9%
Indio city33.23 sq mi0.3%100.0%
Needles city30.58 sq mi0.3%100.0%
Desert Center CDP30.42 sq mi0.3%100.0%
Coachella city30.08 sq mi0.3%100.0%
Blythe city26.58 sq mi0.3%100.0%
Campo CDP23.51 sq mi0.2%100.0%
Indio Hills CDP21.86 sq mi0.2%100.0%
Salton City CDP21.44 sq mi0.2%100.0%
Oasis CDP19.63 sq mi0.2%99.9%
Jamul CDP16.83 sq mi0.2%100.0%
Vista Santa Rosa CDP16.07 sq mi0.2%99.9%
El Centro city11.84 sq mi0.1%97.7%
North Shore CDP11.18 sq mi0.1%100.0%
Big River CDP10.83 sq mi0.1%100.0%
Thermal CDP9.38 sq mi0.1%100.0%
Ocotillo CDP8.86 sq mi0.1%100.0%
Calexico city8.62 sq mi0.1%100.0%
Brawley city8.12 sq mi0.1%100.0%
National City city7.29 sq mi0.1%99.3%
Mecca CDP6.96 sq mi0.1%100.0%
Imperial city6.29 sq mi0.1%99.8%
Jacumba CDP6.12 sq mi0.1%100.0%
Bonita CDP5.00 sq mi<0.1%99.7%

Showing top 25 of 44 places

Overlapping Congressional Districts

Congressional districtPopulation in bothShare of this district's populationShare of the congressional district's populationShare of this district's land
CA District 52555,88857.3%73.0%1.1%
CA District 25374,01738.6%48.6%92.8%
CA District 4822,4282.3%3.0%6.1%
CA District 5017,7891.8%2.3%<0.1%
CA District 235<0.1%<0.1%<0.1%

Source: U.S. Census Bureau 2020 blocks and 2025 block equivalency files (119th Congress, 2024 state legislative plans).

Demographics

Total Population
963,833 (± 4,885)
Median Age
36.2
Median Household Income
$79,843 (± $1,493)
High School Graduate or Higher (age 25+)
77.4%
Bachelor's Degree or Higher (age 25+)
23.0%

Population by Age

GroupPeopleShare
Under 18232,41324.1%
18 to 64591,51861.4%
65 and over139,90214.5%

Population by Race and Hispanic Origin

GroupPeopleShare
Hispanic or Latino (any race)667,79469.3%
White, not Hispanic155,38716.1%
Black, not Hispanic37,1823.9%
Asian, not Hispanic69,8227.2%
American Indian / Alaska Native, not Hispanic3,1740.3%
Native Hawaiian / Pacific Islander, not Hispanic1,7150.2%
Some other race, not Hispanic4,5170.5%
Two or more races, not Hispanic24,2422.5%

Source: U.S. Census Bureau, American Community Survey 2020-2024 ACS 5-year estimates (tables B01001, B01002, B01003, B03002, B15003, B19013) for this state legislative district. Estimates are survey-based; ± figures are 90% margins of error.

Citizen Voting Age Population

Total Citizen Population
832,312
Citizen Voting Age Population (CVAP)
605,910

Citizen Population by Race/Ethnicity

GroupCitizensShare
Non-Hispanic281,19933.8%
Hispanic551,11266.2%
White156,71418.8%
Black36,8464.4%
Asian60,5557.3%
American Indian / Alaska Native3,5190.4%
Native Hawaiian / Pacific Islander1,8230.2%
Two or More Races5,1860.6%

Citizen Voting Age Population by Race/Ethnicity

GroupCVAPShare
Non-Hispanic234,77138.7%
Hispanic371,13861.3%
White137,02822.6%
Black33,0575.5%
Asian55,4499.2%
American Indian / Alaska Native5,0540.8%
Native Hawaiian / Pacific Islander1,7220.3%
Two or More Races2,9570.5%

Source: Redistricting Data Hub / U.S. Census Bureau CVAP Special Tabulation (2020-2024 ACS 5-year).