ZIP code 91320: Thousand Oaks, CA
ZIP code 91320 is in Thousand Oaks (90% of residents) and Casa Conejo (7.3%), in Ventura County, California. It is in California's 26th congressional district. Its state senate districts are State Senate District 27 (100%) and State Senate District 21 (<0.1%); its state house district is Assembly District 42.
See it on the mapAll of California
City and county
| City or town | Share of ZIP residents |
|---|---|
| Thousand Oaks | 90% |
| Casa Conejo | 7.3% |
| County | Share of ZIP residents |
|---|---|
| Ventura County | 100% |
| Town or county subdivision | Share of ZIP residents |
|---|---|
| Thousand Oaks CCD | 100% |
| Triunfo Pass-Point Mugu CCD | <0.1% |
Congressional district
| Congressional district | Share of ZIP residents |
|---|---|
| California's 26th congressional district (CA-26) | 100% |
Elected officials
| Office | Member | Contact | Share of residents |
|---|---|---|---|
| Mayor | Bob Engler | 90% | |
| U.S. Representative (CA-26) | Julia Brownley (D) | 202-225-5811 | 100% |
| U.S. Senator | Adam B. Schiff (D) | 202-224-3841 | statewide |
| U.S. Senator | Alex Padilla (D) | 202-224-3553 · contact form | statewide |
| State Senator (State Senate District 27) | Henry Stern (Democratic) | 818-501-0650 | 100% |
| State Senator (State Senate District 21) | Monique Limón (Democratic) | 805-988-1940 | <0.1% |
| Assembly Member (Assembly District 42) | Jacqui Irwin (Democratic) | 424-238-2421 | 100% |
From Wikidata (community-maintained); confirm on the city's website.
Elected in 2024 under CA's previous congressional map; this district's lines changed for the 120th Congress (seated January 3, 2027).
Officials serving now (members of Congress until January 3, 2027). Sources: State legislators: Open States (public domain); Members of Congress: the @unitedstates project, congress-legislators (CC0); Mayors: Wikidata (CC0).
Local government
- Thousand Oaks website: https://www.toaks.org/
- Thousand Oaks laws: search for the Thousand Oaks, California code of ordinances
- Casa Conejo laws: search for the Casa Conejo, California code of ordinances
- Ventura County website: https://venturacounty.gov/
- Ventura County laws: search for the Ventura County, California code of ordinances
State legislative districts
| State senate district | Share of ZIP residents |
|---|---|
| State Senate District 27 | 100% |
| State Senate District 21 | <0.1% |
| State house district | Share of ZIP residents |
|---|---|
| Assembly District 42 | 100% |
Voting precincts
45 voting precincts overlap ZIP 91320. 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:91320")
ZIP 91320 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.