ZIP Code 95431

95431 is one of California's ZIP codes, delivering to addresses in Eldridge, Sonoma County.

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

Where this code sits

95431 is part of the 954xx range, the group of codes handled by one mail processing centre. It is the only ZIP code delivering to Eldridge.

Area codes over the same ground

Postal and telephone geography are drawn separately, so these codes cover the area 95431 delivers to without sharing its boundary.

ZIP codes nearest 95431

The ZIP codes whose reference points sit closest to 95431.
ZIP code	Distance	Delivers to
ZIP code 95442	1.3 mi	Glen Ellen, CA
ZIP code 95416	2.8 mi	Boyes Hot Springs, CA
ZIP code 95433	3.7 mi	El Verano, CA
ZIP code 95476	4.9 mi	Sonoma, CA
ZIP code 95452	5.3 mi	Kenwood, CA
ZIP code 95487	6.6 mi	Vineburg, CA
ZIP code 94951	7.8 mi	Penngrove, CA
ZIP code 94562	8.6 mi	Oakville, 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 95431, plotted from its record coordinates.

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

Scope ZIP code 95431. 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.