Boundary Atlas

ZIP code 95948: Gridley, CA

ZIP code 95948 is in Gridley (64% of residents), in Butte County (100%) and Sutter County (0.2%), California. 36% of its residents live outside city limits. It is in California's 1st congressional district (100%) and California's 4th congressional district (0.2%). Its state senate district is State Senate District 1; its state house district is Assembly District 3.

11,603residents (2020 Census)
75.6 sq miland area
1cities and towns
2congressional districts
6voting precincts

See it on the mapAll of California

City and county

City or townShare of ZIP residents
Gridley64%

CountyShare of ZIP residents
Butte County100%
Sutter County0.2%

Town or county subdivisionShare of ZIP residents
Gridley CCD99%
Biggs CCD0.3%
Live Oak CCD0.2%

Congressional districts

Congressional districtShare of ZIP residents
California's 1st congressional district (CA-01)100%
California's 4th congressional district (CA-04)0.2%

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.

Elected officials

OfficeMemberContactShare of residents
U.S. Representative (CA-01)James Gallagher (R)202-225-3076100%
U.S. Representative (CA-04)Mike Thompson (D)202-225-33110.2%
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

6 voting precincts overlap ZIP 95948. Map them, with each precinct's share of the ZIP's residents.

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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:95948")

ZIP 95948 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.