Mariposa County ZIP Codes

Mariposa County is a county of California.

ZIP codes: 8
Cities & towns: 8
Area codes: 4
Land area: 1,449 sq mi

Every ZIP code in Mariposa County

936xx–953xx

The complete list of Mariposa County, CA ZIP codes with the city each one delivers to.
ZIP code	City
93623	Fish Camp
95306	Catheys Valley
95311	Coulterville
95318	El Portal
95325	Hornitos
95338	Mariposa
95345	Midpines
95389	Yosemite National Park

We do not publish a delivery type (standard, PO box, unique) or a neighbourhood for each ZIP. USPS delivery-type products are licensed, and no clean-rights source maps ZIP codes to neighbourhoods — so the Mariposa County codes above are listed without a column we would have to invent.

Area codes covering Mariposa County

Telephone and postal boundaries are drawn by different bodies, so these codes overlap the county without matching its edges.

Where Mariposa County's ZIP codes sit

Each point is the reference point of one Mariposa County ZIP code, plotted from its record coordinates. The outline is the convex envelope of those points — a footprint, not a boundary.

Reference points and footprint
Not an official NANPA boundary
Not a USPS delivery area

Scope every ZIP code recorded in Mariposa County. Source GeoNames US postal codes (2026-07 postal dump), Census 2024 county Gazetteer (2024 Gazetteer) and geoinfo-dataset (full_dataset) ZIP→NPA (2018 snapshot). Updated 16 July 2026. The outline is a convex envelope of ZIP reference points, not a jurisdiction boundary.