ZIP Code 95430

95430 is one of California's ZIP codes, delivering to addresses in Duncans Mills, Sonoma County.

City: Duncans Mills
County: Sonoma County
State: California
Prefix: 954xx

Where this code sits

95430 is part of the 954xx range, the group of codes handled by one mail processing centre. It is the only ZIP code delivering to Duncans Mills.

Area codes over the same ground

Postal and telephone geography are drawn separately, so these codes cover the area 95430 delivers to without sharing its boundary.

ZIP codes nearest 95430

The ZIP codes whose reference points sit closest to 95430.
ZIP code	Distance	Delivers to
ZIP code 95486	2.2 mi	Villa Grande, CA
ZIP code 95462	2.4 mi	Monte Rio, CA
ZIP code 95465	4.5 mi	Occidental, CA
ZIP code 95446	4.8 mi	Guerneville, CA
ZIP code 95419	6.1 mi	Camp Meeker, CA
ZIP code 95471	6.3 mi	Rio Nido, CA
ZIP code 95450	8.3 mi	Jenner, CA
ZIP code 94922	8.3 mi	Bodega, 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 95430, plotted from its record coordinates.

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

Scope ZIP code 95430. 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.