ZIP Code 94591

94591 is one of California's ZIP codes, delivering to addresses in Vallejo, Solano County.

City: Vallejo
County: Solano County
State: California
Prefix: 945xx

Where this code sits

94591 is part of the 945xx range, the group of codes handled by one mail processing centre. Vallejo is served by 4 ZIP codes in total; the full list, with the county each falls in, is on the Vallejo page.

Vallejo California ZIP codes →

Area codes over the same ground

Postal and telephone geography are drawn separately, so these codes cover the area 94591 delivers to without sharing its boundary.

ZIP codes nearest 94591

The ZIP codes whose reference points sit closest to 94591.
ZIP code	Distance	Delivers to
ZIP code 94590	2.0 mi	Vallejo, CA
ZIP code 94592	3.1 mi	Vallejo, CA
ZIP code 94525	3.2 mi	Crockett, CA
ZIP code 94510	3.5 mi	Benicia, CA
ZIP code 94569	3.9 mi	Port Costa, CA
ZIP code 94503	5.3 mi	American Canyon, CA
ZIP code 94572	5.3 mi	Rodeo, CA
ZIP code 94589	5.5 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 94591, plotted from its record coordinates.

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

Scope ZIP code 94591. 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.