California Assembly District 42

State Legislative District Profile (Lower Chamber)

Overview

District ID
ca-hd-042
State
California
Chamber
Lower chamber
District Code
042
Land Area
539.5 sq mi
Water Area
120.8 sq mi

Boundary

Boundary of California Assembly District 42

Boundary as GeoJSON

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

Counties

CountyOverlapShare of district landShare of county land
Ventura County327.02 sq mi60.6%17.8%
Los Angeles County212.44 sq mi39.4%5.2%

Showing all 2 counties

Places

PlaceOverlapShare of district landShare of place land
Thousand Oaks city55.26 sq mi10.2%100.0%
Los Angeles city49.76 sq mi9.2%10.6%
Simi Valley city41.55 sq mi7.7%100.0%
Malibu city19.85 sq mi3.7%100.0%
Topanga CDP19.13 sq mi3.5%100.0%
Calabasas city13.71 sq mi2.5%100.0%
Camarillo city12.60 sq mi2.3%64.0%
Moorpark city12.28 sq mi2.3%100.0%
Agoura Hills city7.80 sq mi1.4%100.0%
Santa Rosa Valley CDP7.21 sq mi1.3%100.0%
Oak Park CDP5.29 sq mi1.0%100.0%
Westlake Village city5.19 sq mi1.0%100.0%
Lake Sherwood CDP3.14 sq mi0.6%100.0%
Hidden Hills city1.69 sq mi0.3%100.0%
Santa Susana CDP1.25 sq mi0.2%99.8%
Pepperdine University CDP0.54 sq mi0.1%100.0%
Casa Conejo CDP0.47 sq mi0.1%99.9%

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 26409,20879.2%53.9%66.1%
CA District 32107,73120.8%14.2%33.9%

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

Demographics

Total Population
509,665 (± 3,877)
Median Age
43.9
Median Household Income
$142,840 (± $2,034)
High School Graduate or Higher (age 25+)
94.4%
Bachelor's Degree or Higher (age 25+)
54.5%

Population by Age

GroupPeopleShare
Under 18102,11320.0%
18 to 64304,99459.8%
65 and over102,55820.1%

Population by Race and Hispanic Origin

GroupPeopleShare
Hispanic or Latino (any race)102,57620.1%
White, not Hispanic316,40562.1%
Black, not Hispanic9,5891.9%
Asian, not Hispanic47,1709.3%
American Indian / Alaska Native, not Hispanic5870.1%
Native Hawaiian / Pacific Islander, not Hispanic5790.1%
Some other race, not Hispanic4,3620.9%
Two or more races, not Hispanic28,3975.6%

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
477,827
Citizen Voting Age Population (CVAP)
378,694

Citizen Population by Race/Ethnicity

GroupCitizensShare
Non-Hispanic388,79381.4%
Hispanic89,03518.6%
White315,27066.0%
Black9,6522.0%
Asian39,6798.3%
American Indian / Alaska Native5850.1%
Native Hawaiian / Pacific Islander6300.1%
Two or More Races2,7730.6%

Citizen Voting Age Population by Race/Ethnicity

GroupCVAPShare
Non-Hispanic316,14483.5%
Hispanic62,55016.5%
White262,23169.2%
Black10,4552.8%
Asian38,14610.1%
American Indian / Alaska Native3,1780.8%
Native Hawaiian / Pacific Islander4840.1%
Two or More Races1,7460.5%

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