Boundary Atlas

Thousand Oaks, California

Thousand Oaks is a city in Ventura County, California, with 126,966 residents in 2020. It is in California's 26th congressional district. Its state senate district is State Senate District 27; its state house district is Assembly District 42.

126,966residents (2020 Census)
55.3 sq miland area
5ZIP codes
1congressional district

County

CountyShare of residents
Ventura County100%

Congressional district

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

Elected officials

OfficeMemberContactShare of residents
MayorBob Englercitywide
U.S. Representative (CA-26)Julia Brownley (D)202-225-5811100%
U.S. SenatorAdam B. Schiff (D)202-224-3841statewide
U.S. SenatorAlex Padilla (D)202-224-3553 · contact formstatewide
State Senator (State Senate District 27)Henry Stern (Democratic)818-501-0650100%
Assembly Member (Assembly District 42)Jacqui Irwin (Democratic)424-238-2421100%

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

State legislative districts

State senate districtShare of residents
State Senate District 27100%

State house districtShare of residents
Assembly District 42100%

ZIP codes

Percentages mark ZIPs only partly in Thousand Oaks: the share of that ZIP's residents living in it.

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Your agent can get Thousand Oaks's counties and districts with shares, its ZIP codes (level='zcta'), and its boundary as GeoJSON (get_boundaries). Add https://boundarymcp.com/mcp to Claude, ChatGPT, Cursor or Codex (free, no key; how), then:

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Thousand Oaks here is the Census Bureau's place boundary as of January 1, 2025. Shares are of 2020 Census population. Districts are the maps in force for the November 3, 2026 election.