California State Senate District 27

State Legislative District Profile (Upper Chamber)

Overview

District ID
ca-sd-027
State
California
Chamber
Upper chamber (state senate)
District Code
027
Land Area
306.7 sq mi
Water Area
2.93 sq mi

Boundary

Boundary of California State Senate District 27

Boundary as GeoJSON

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

Counties

CountyOverlapShare of district landShare of county land
Ventura County185.53 sq mi60.5%10.1%
Los Angeles County120.38 sq mi39.2%3.0%

Showing all 2 counties

Places

PlaceOverlapShare of district landShare of place land
Los Angeles city117.72 sq mi38.4%25.0%
Thousand Oaks city55.26 sq mi18.0%100.0%
Simi Valley city41.55 sq mi13.5%100.0%
Moorpark city12.28 sq mi4.0%100.0%
Santa Rosa Valley CDP7.21 sq mi2.4%100.0%
Oak Park CDP5.29 sq mi1.7%100.0%
Bell Canyon CDP3.64 sq mi1.2%100.0%
Somis CDP3.35 sq mi1.1%100.0%
Lake Sherwood CDP3.14 sq mi1.0%100.0%
Santa Susana CDP1.25 sq mi0.4%99.8%
Casa Conejo CDP0.47 sq mi0.2%99.9%

Showing all 11 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 32442,03444.6%58.3%29.6%
CA District 26320,93932.4%42.3%59.5%
CA District 29162,61016.4%21.5%4.4%
CA District 2765,7346.6%8.6%6.4%
CA District 3000.0%0.0%0.2%

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

Demographics

Total Population
994,285 (± 6,978)
Median Age
41.1
Median Household Income
$112,200 (± $1,598)
High School Graduate or Higher (age 25+)
92.4%
Bachelor's Degree or Higher (age 25+)
49.8%

Population by Age

GroupPeopleShare
Under 18188,69419.0%
18 to 64630,92163.5%
65 and over174,67017.6%

Population by Race and Hispanic Origin

GroupPeopleShare
Hispanic or Latino (any race)241,77324.3%
White, not Hispanic531,49853.5%
Black, not Hispanic42,1904.2%
Asian, not Hispanic115,78711.6%
American Indian / Alaska Native, not Hispanic1,2910.1%
Native Hawaiian / Pacific Islander, not Hispanic9670.1%
Some other race, not Hispanic8,4790.9%
Two or more races, not Hispanic52,3005.3%

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
905,617
Citizen Voting Age Population (CVAP)
724,760

Citizen Population by Race/Ethnicity

GroupCitizensShare
Non-Hispanic700,80677.4%
Hispanic204,81222.6%
White518,75757.3%
Black42,1224.7%
Asian96,71210.7%
American Indian / Alaska Native1,3110.1%
Native Hawaiian / Pacific Islander1,0030.1%
Two or More Races6,0030.7%

Citizen Voting Age Population by Race/Ethnicity

GroupCVAPShare
Non-Hispanic577,08579.6%
Hispanic147,67220.4%
White436,28060.2%
Black41,3105.7%
Asian90,20112.4%
American Indian / Alaska Native4,8980.7%
Native Hawaiian / Pacific Islander8060.1%
Two or More Races4,0760.6%

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