Boundary Atlas

ZIP code 94530: El Cerrito, CA

ZIP code 94530 is in El Cerrito (98% of residents) and Richmond (1.5%), in Contra Costa County, California. It is in California's 8th congressional district. Its state senate district is State Senate District 7; its state house district is Assembly District 14.

26,360residents (2020 Census)
4.3 sq miland area
2cities and towns
1congressional district
12voting precincts

See it on the mapAll of California

City and county

City or townShare of ZIP residents
El Cerrito98%
Richmond1.5%

CountyShare of ZIP residents
Contra Costa County100%

Town or county subdivisionShare of ZIP residents
West Contra Costa CCD100%

Congressional district

Congressional districtShare of ZIP residents
California's 8th congressional district (CA-08)100%

State legislative districts

State senate districtShare of ZIP residents
State Senate District 7100%

State house districtShare of ZIP residents
Assembly District 14100%

Voting precincts

12 voting precincts overlap ZIP 94530. Map them, with each precinct's share of the ZIP's residents.

Get this in your AI agent

Your agent can get these cities, counties, districts and precincts with their shares, and their GeoJSON boundaries, from Boundary Atlas. Add https://atlas-production-d344.up.railway.app/mcp to Claude, ChatGPT, Cursor or Codex (free, no key; how), then:

related_geographies(id="us:zcta:94530")

ZIP 94530 here is the Census Bureau's ZIP Code Tabulation Area, which approximates the USPS ZIP Code; PO-box-only ZIPs have none. Districts are the maps in force for the November 3, 2026 election.