ZIP Code 94571

94571 is one of California's ZIP codes, delivering to addresses in Rio Vista, Solano County.

City: Rio Vista
County: Solano County
State: California
Prefix: 945xx

Where this code sits

94571 is part of the 945xx range, the group of codes handled by one mail processing centre. It is the only ZIP code delivering to Rio Vista.

Rio Vista California ZIP codes →

Area codes over the same ground

Postal and telephone geography are drawn separately, so these codes cover the area 94571 delivers to without sharing its boundary.

ZIP codes nearest 94571

The ZIP codes whose reference points sit closest to 94571.
ZIP code	Distance	Delivers to
ZIP code 95641	5.2 mi	Isleton, CA
ZIP code 94512	7.8 mi	Birds Landing, CA
ZIP code 95680	9.3 mi	Ryde, CA
ZIP code 94511	10 mi	Bethel Island, CA
ZIP code 95690	10 mi	Walnut Grove, CA
ZIP code 94561	12 mi	Oakley, CA
ZIP code 95615	13 mi	Courtland, CA
ZIP code 94509	13 mi	Antioch, 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 94571, plotted from its record coordinates.

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

Scope ZIP code 94571. 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.