ZIP code 93021: Moorpark, CA
ZIP code 93021 is in Moorpark (95% of residents), in Ventura County, California. It is in California's 26th congressional district (100%) and California's 32nd congressional district (<0.1%). Its state senate districts are State Senate District 27 (98%) and State Senate District 21 (2.2%); its state house districts are Assembly District 42 (99%) and Assembly District 38 (1.3%).
See it on the mapAll of California
City and county
| City or town | Share of ZIP residents |
|---|---|
| Moorpark | 95% |
| Thousand Oaks | 0.2% |
| County | Share of ZIP residents |
|---|---|
| Ventura County | 100% |
| Town or county subdivision | Share of ZIP residents |
|---|---|
| Moorpark CCD | 98% |
| Las Posas CCD | 1.0% |
| Thousand Oaks CCD | 0.3% |
| Simi Valley CCD | 0.3% |
| Fillmore CCD | <0.1% |
Congressional districts
| Congressional district | Share of ZIP residents |
|---|---|
| California's 26th congressional district (CA-26) | 100% |
| California's 32nd congressional district (CA-32) | <0.1% |
This ZIP is split between districts. A mailing address in it could be in either; the map or locate_point gives the district for an exact address.
State legislative districts
| State senate district | Share of ZIP residents |
|---|---|
| State Senate District 27 | 98% |
| State Senate District 21 | 2.2% |
| State house district | Share of ZIP residents |
|---|---|
| Assembly District 42 | 99% |
| Assembly District 38 | 1.3% |
Voting precincts
58 voting precincts overlap ZIP 93021. 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:93021")
ZIP 93021 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.