Boundary Atlas

ZIP code 93030: Oxnard, CA

ZIP code 93030 is in Oxnard, in Ventura County, California. It is in California's 26th congressional district. Its state senate district is State Senate District 21; its state house district is Assembly District 38.

59,011residents (2020 Census)
14.1 sq miland area
1cities and towns
1congressional district
58voting precincts

See it on the mapAll of California

City and county

City or townShare of ZIP residents
Oxnard100%

CountyShare of ZIP residents
Ventura County100%

Town or county subdivisionShare of ZIP residents
Oxnard CCD100%
Camarillo CCDland only

Congressional district

Congressional districtShare of ZIP residents
California's 26th congressional district (CA-26)100%

State legislative districts

State senate districtShare of ZIP residents
State Senate District 21100%

State house districtShare of ZIP residents
Assembly District 38100%
Assembly District 42land only

Voting precincts

58 voting precincts overlap ZIP 93030. 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:93030")

ZIP 93030 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.