ZIP Code 95439

95439 is one of California's ZIP codes, delivering to addresses in Fulton, Sonoma County.

City: Fulton
County: Sonoma County
State: California
Prefix: 954xx

Where this code sits

95439 is part of the 954xx range, the group of codes handled by one mail processing centre. It is the only ZIP code delivering to Fulton.

Area codes over the same ground

Postal and telephone geography are drawn separately, so these codes cover the area 95439 delivers to without sharing its boundary.

ZIP codes nearest 95439

The ZIP codes whose reference points sit closest to 95439.
ZIP code	Distance	Delivers to
ZIP code 95403	1.8 mi	Santa Rosa, CA
ZIP code 95401	3.7 mi	Santa Rosa, CA
ZIP code 95492	3.8 mi	Windsor, CA
ZIP code 95404	5.0 mi	Santa Rosa, CA
ZIP code 95402	5.2 mi	Santa Rosa, CA
ZIP code 95406	5.2 mi	Santa Rosa, CA
ZIP code 95407	6.4 mi	Santa Rosa, CA
ZIP code 95444	6.5 mi	Graton, 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 95439, plotted from its record coordinates.

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

Scope ZIP code 95439. 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.