ZIP Code 95420

95420 is one of California's ZIP codes, delivering to addresses in Caspar, Mendocino County.

City: Caspar
County: Mendocino County
State: California
Prefix: 954xx

Where this code sits

95420 is part of the 954xx range, the group of codes handled by one mail processing centre. It is the only ZIP code delivering to Caspar.

Area codes over the same ground

Postal and telephone geography are drawn separately, so these codes cover the area 95420 delivers to without sharing its boundary.

ZIP codes nearest 95420

The ZIP codes whose reference points sit closest to 95420.
ZIP code	Distance	Delivers to
ZIP code 95460	3.3 mi	Mendocino, CA
ZIP code 95437	5.5 mi	Fort Bragg, CA
ZIP code 95456	6.4 mi	Little River, CA
ZIP code 95410	11 mi	Albion, CA
ZIP code 95427	13 mi	Comptche, CA
ZIP code 95432	15 mi	Elk, CA
ZIP code 95463	19 mi	Navarro, CA
ZIP code 95488	22 mi	Westport, CA

Straight-line distance between place reference points, not driving distance. Where a place has no Census Gazetteer point, its postal centroid is used instead.

Each point is the reference point for 95420, plotted from its record coordinates.

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

Scope ZIP code 95420. Source GeoNames US postal codes (2026-07 postal dump) and Census 2024 county Gazetteer (2024 Gazetteer). Updated 15 July 2026. A ZIP code is a set of delivery routes, not an area; the point shown is a record coordinate, not a centre.