ZIP Code 94569

94569 is one of California's ZIP codes, delivering to addresses in Port Costa, Contra Costa County.

City: Port Costa
County: Contra Costa County
State: California
Prefix: 945xx

Where this code sits

94569 is part of the 945xx range, the group of codes handled by one mail processing centre. It is the only ZIP code delivering to Port Costa.

Area codes over the same ground

Postal and telephone geography are drawn separately, so these codes cover the area 94569 delivers to without sharing its boundary.

ZIP codes nearest 94569

The ZIP codes whose reference points sit closest to 94569.
ZIP code	Distance	Delivers to
ZIP code 94525	1.7 mi	Crockett, CA
ZIP code 94510	2.1 mi	Benicia, CA
ZIP code 94591	3.9 mi	Vallejo, CA
ZIP code 94572	4.0 mi	Rodeo, CA
ZIP code 94553	5.0 mi	Martinez, CA
ZIP code 94547	5.0 mi	Hercules, CA
ZIP code 94590	5.3 mi	Vallejo, CA
ZIP code 94592	5.7 mi	Vallejo, 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 94569, plotted from its record coordinates.

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

Scope ZIP code 94569. 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.