Postal reference / United States

94581Napa, California

ZIP code 94581 is a United States postal code for Napa, California. Its county association is Napa County. The map reference point is at 38.2971, -122.2855.

State / territory
California
Recorded place name
Napa
County association
Napa
Estimated coordinate
38.2971, -122.2855
View on OpenStreetMap
ZIP prefix
945 · 93 ZIP codes share it
Data source
GeoNames postal reference, snapshot September 26, 2026

GeoNames reference data. County associations may not include every intersecting county, place names are postal names rather than legal boundaries, and coordinates are approximate. This is not address validation.

Need the last four digits?

ZIP+4 depends on the full delivery address. A five-digit code alone cannot determine its extension.

Find ZIP+4

Explore California

Browse the other 2,592 ZIP codes recorded for California, sorted by code with place and county.

California directory

Other ZIP codes in Napa, CA

Napa has 3 ZIP codes in the reference dataset.

Nearby ZIP code reference points

ZIP codePlaceStateCounty associationMiles
94559NapaCANapa0.5
94599YountvilleCANapa8.3
95487VineburgCASonoma8.4
94503American CanyonCANapa9.2
94534FairfieldCASolano9.2
94589VallejoCASolano9.6
95476SonomaCASonoma10.0
95416Boyes Hot SpringsCASonoma10.8

Straight-line distance between reference points. Nearby points do not prove that ZIP areas touch.

Verify a mailing address

For mailing, confirm the complete street or PO Box address with USPS. A place record does not confirm delivery eligibility or the ZIP+4 extension.

Open USPS address lookup