Boundary Atlas

ZIP code 95321: Pine Mountain Lake, CA

ZIP code 95321 is in Pine Mountain Lake (70% of residents) and Groveland (10%), in Tuolumne County (98%) and Mariposa County (1.6%), California. 19% of its residents live outside city limits. It is in California's 5th congressional district. Its state senate district is State Senate District 4; its state house district is Assembly District 8.

3,745residents (2020 Census)
449.1 sq miland area
4cities and towns
1congressional district
5voting precincts

See it on the mapAll of California

City and county

City or townShare of ZIP residents
Pine Mountain Lake70%
Groveland10%
Greeley Hill1.0%
Buck Meadows0.6%

CountyShare of ZIP residents
Tuolumne County98%
Mariposa County1.6%

Town or county subdivisionShare of ZIP residents
Groveland CCD86%
Twain Harte-Tuolumne City CCD13%
Coulterville CCD1.6%

Congressional district

Congressional districtShare of ZIP residents
California's 5th congressional district (CA-05)100%

State legislative districts

State senate districtShare of ZIP residents
State Senate District 4100%

State house districtShare of ZIP residents
Assembly District 8100%

Voting precincts

5 voting precincts overlap ZIP 95321. 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:95321")

ZIP 95321 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.