Boundary Atlas

ZIP code 95919: Challenge-Brownsville, CA

ZIP code 95919 is in Challenge-Brownsville (70% of residents), in Yuba County, California. 30% of its residents live outside city limits. It is in California's 4th congressional district. Its state senate district is State Senate District 1; its state house district is Assembly District 3.

1,411residents (2020 Census)
26.8 sq miland area
1cities and towns
1congressional district
3voting precincts

See it on the mapAll of California

City and county

City or townShare of ZIP residents
Challenge-Brownsville70%

CountyShare of ZIP residents
Yuba County100%

Town or county subdivisionShare of ZIP residents
Yuba Foothills CCD100%

Congressional district

Congressional districtShare of ZIP residents
California's 4th congressional district (CA-04)100%

Elected officials

OfficeMemberContactShare of residents
U.S. Representative (CA-04)Mike Thompson (D)202-225-3311100%
U.S. SenatorAdam B. Schiff (D)202-224-3841statewide
U.S. SenatorAlex Padilla (D)202-224-3553 · contact formstatewide
State Senator (State Senate District 1)Megan Dahle (R)530-879-7424100%

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).

Local government

State legislative districts

State senate districtShare of ZIP residents
State Senate District 1100%

State house districtShare of ZIP residents
Assembly District 3100%

Voting precincts

3 voting precincts overlap ZIP 95919. 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:95919")

ZIP 95919 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.