California Assembly District 1

State Legislative District Profile (Lower Chamber)

Overview

District ID
ca-hd-001
State
California
Chamber
Lower chamber
District Code
001
Land Area
26,448.7 sq mi
Water Area
827 sq mi

Boundary

Boundary of California Assembly District 1

Boundary as GeoJSON

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

Counties

CountyOverlapShare of district landShare of county land
Siskiyou County6278.77 sq mi23.7%100.0%
Lassen County4541.34 sq mi17.2%100.0%
Modoc County3948.23 sq mi14.9%100.0%
Shasta County3775.52 sq mi14.3%100.0%
Plumas County2553.06 sq mi9.7%100.0%
El Dorado County1252.62 sq mi4.7%73.3%
Placer County975.64 sq mi3.7%69.3%
Nevada County957.76 sq mi3.6%100.0%
Sierra County953.17 sq mi3.6%100.0%
Alpine County738.34 sq mi2.8%100.0%
Amador County474.11 sq mi1.8%79.7%

Showing all 11 counties

Places

PlaceOverlapShare of district landShare of place land
Redding city59.65 sq mi0.2%100.0%
Hat Creek CDP50.01 sq mi0.2%100.0%
Janesville CDP33.81 sq mi0.1%100.0%
Truckee town32.33 sq mi0.1%100.0%
Bella Vista CDP26.44 sq mi0.1%100.0%
Shingletown CDP24.54 sq mi0.1%100.0%
Warner Valley CDP17.40 sq mi0.1%100.0%
Happy Valley CDP16.87 sq mi0.1%99.8%
Johnsville CDP13.76 sq mi0.1%100.0%
Cottonwood CDP13.22 sq mi0.1%100.0%
Chilcoot-Vinton CDP13.21 sq mi<0.1%100.0%
French Gulch CDP12.33 sq mi<0.1%100.0%
East Quincy CDP12.11 sq mi<0.1%100.0%
Happy Camp CDP12.11 sq mi<0.1%100.0%
Mohawk Vista CDP11.97 sq mi<0.1%100.0%
Beckwourth CDP11.68 sq mi<0.1%100.0%
Foresthill CDP11.19 sq mi<0.1%100.0%
Graeagle CDP11.07 sq mi<0.1%100.0%
Shasta CDP10.94 sq mi<0.1%100.0%
Shasta Lake city10.92 sq mi<0.1%100.0%
Bucks Lake CDP10.34 sq mi<0.1%100.0%
South Lake Tahoe city10.19 sq mi<0.1%100.0%
Little Grass Valley CDP10.00 sq mi<0.1%100.0%
Yreka city9.99 sq mi<0.1%100.0%
Cromberg CDP9.03 sq mi<0.1%100.0%

Showing top 25 of 189 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 1267,66152.2%35.0%70.1%
CA District 3212,93841.6%27.8%27.8%
CA District 531,7356.2%4.1%2.1%

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

Demographics

Total Population
506,582 (± 2,399)
Median Age
45.1
Median Household Income
$77,730 (± $1,531)
High School Graduate or Higher (age 25+)
92.0%
Bachelor's Degree or Higher (age 25+)
29.3%

Population by Age

GroupPeopleShare
Under 1896,33919.0%
18 to 64284,56056.2%
65 and over125,68324.8%

Population by Race and Hispanic Origin

GroupPeopleShare
Hispanic or Latino (any race)66,46613.1%
White, not Hispanic382,65475.5%
Black, not Hispanic5,2641.0%
Asian, not Hispanic12,3692.4%
American Indian / Alaska Native, not Hispanic5,9971.2%
Native Hawaiian / Pacific Islander, not Hispanic9720.2%
Some other race, not Hispanic2,7720.5%
Two or more races, not Hispanic30,0885.9%

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
490,455
Citizen Voting Age Population (CVAP)
394,984

Citizen Population by Race/Ethnicity

GroupCitizensShare
Non-Hispanic433,06988.3%
Hispanic57,38611.7%
White388,69179.3%
Black5,4281.1%
Asian10,2452.1%
American Indian / Alaska Native6,0381.2%
Native Hawaiian / Pacific Islander8520.2%
Two or More Races2,8600.6%

Citizen Voting Age Population by Race/Ethnicity

GroupCVAPShare
Non-Hispanic356,20990.2%
Hispanic38,7779.8%
White324,60782.2%
Black6,7961.7%
Asian10,5352.7%
American Indian / Alaska Native12,2943.1%
Native Hawaiian / Pacific Islander5750.1%
Two or More Races1,4770.4%

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