ZIP Code 94574

94574 is one of California's ZIP codes, delivering to addresses in Saint Helena, Napa County.

City: Saint Helena
County: Napa County
State: California
Prefix: 945xx

Where this code sits

94574 is part of the 945xx range, the group of codes handled by one mail processing centre. It is the only ZIP code delivering to Saint Helena.

Area codes over the same ground

Postal and telephone geography are drawn separately, so these codes cover the area 94574 delivers to without sharing its boundary.

ZIP codes nearest 94574

The ZIP codes whose reference points sit closest to 94574.
ZIP code	Distance	Delivers to
ZIP code 94576	2.6 mi	Deer Park, CA
ZIP code 94573	4.4 mi	Rutherford, CA
ZIP code 94508	4.4 mi	Angwin, CA
ZIP code 94562	6.2 mi	Oakville, CA
ZIP code 94567	7.2 mi	Pope Valley, CA
ZIP code 94515	8.0 mi	Calistoga, CA
ZIP code 95452	8.4 mi	Kenwood, CA
ZIP code 94599	9.5 mi	Yountville, 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 94574, plotted from its record coordinates.

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

Scope ZIP code 94574. 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.