California Assembly District 15

State Legislative District Profile (Lower Chamber)

Overview

District ID
ca-hd-015
State
California
Chamber
Lower chamber
District Code
015
Land Area
323.4 sq mi
Water Area
23.4 sq mi

Boundary

Boundary of California Assembly District 15

Boundary as GeoJSON

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

Counties

CountyOverlapShare of district landShare of county land
Contra Costa County323.40 sq mi100.0%45.1%

Showing all 1 county

Places

PlaceOverlapShare of district landShare of place land
Concord city30.55 sq mi9.4%99.9%
Antioch city29.17 sq mi9.0%100.0%
Pittsburg city17.68 sq mi5.5%100.0%
Brentwood city14.87 sq mi4.6%100.0%
Martinez city12.63 sq mi3.9%99.9%
Pleasant Hill city7.08 sq mi2.2%100.0%
Bay Point CDP6.43 sq mi2.0%100.0%
Clayton city3.84 sq mi1.2%100.0%
Reliez Valley CDP2.36 sq mi0.7%100.0%
Alhambra Valley CDP1.61 sq mi0.5%100.0%
Vine Hill CDP1.50 sq mi0.5%100.0%
Crockett CDP1.06 sq mi0.3%100.0%
Pacheco CDP0.75 sq mi0.2%100.0%
Mountain View city0.29 sq mi0.1%2.4%
Port Costa CDP0.16 sq mi<0.1%100.0%
Clyde CDP0.14 sq mi<0.1%99.8%
Walnut Creek city0.04 sq mi<0.1%0.2%

Showing all 17 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 10337,69066.1%44.4%71.1%
CA District 8172,96233.8%22.8%27.0%
CA District 95770.1%0.1%1.9%

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

Demographics

Total Population
510,122 (± 2,790)
Median Age
39.2
Median Household Income
$112,910 (± $2,571)
High School Graduate or Higher (age 25+)
87.5%
Bachelor's Degree or Higher (age 25+)
34.1%

Population by Age

GroupPeopleShare
Under 18113,96322.3%
18 to 64316,12562.0%
65 and over80,03415.7%

Population by Race and Hispanic Origin

GroupPeopleShare
Hispanic or Latino (any race)166,19232.6%
White, not Hispanic181,65635.6%
Black, not Hispanic46,5179.1%
Asian, not Hispanic73,71114.4%
American Indian / Alaska Native, not Hispanic1,1490.2%
Native Hawaiian / Pacific Islander, not Hispanic3,2200.6%
Some other race, not Hispanic4,1010.8%
Two or more races, not Hispanic33,5766.6%

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
456,714
Citizen Voting Age Population (CVAP)
346,892

Citizen Population by Race/Ethnicity

GroupCitizensShare
Non-Hispanic324,51971.1%
Hispanic132,19028.9%
White184,56440.4%
Black45,57010.0%
Asian62,79413.7%
American Indian / Alaska Native1,1060.2%
Native Hawaiian / Pacific Islander3,0220.7%
Two or More Races7,0711.5%

Citizen Voting Age Population by Race/Ethnicity

GroupCVAPShare
Non-Hispanic261,70975.4%
Hispanic85,18324.6%
White156,50245.1%
Black38,28711.0%
Asian56,83916.4%
American Indian / Alaska Native3,6231.0%
Native Hawaiian / Pacific Islander2,1180.6%
Two or More Races4,7511.4%

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