Postal Code
94581
Postal Code 94581
Country United States
ISO Code US
ZIP Code 94581

Postal Information

Postal Code 94581
City Napa
County Napa
Region California
Country United States

Nearby Postal Codes

Distances are calculated geographically from this postal code, not from administrative boundaries.

Postal Code City Region Coordinates
94559 Napa California 0.5 km
94558 Napa California 5.3 km
94599 Yountville California 13.7 km
94503 American Canyon California 14.6 km
95487 Vineburg California 15.3 km
95476 Sonoma California 15.9 km
95416 Boyes Hot Springs California 17.1 km
94589 Vallejo California 17.4 km
95433 El Verano California 17.5 km
94562 Oakville California 17.7 km
94573 Rutherford California 20.9 km
95431 Eldridge California 21.0 km
94585 Suisun City California 21.3 km
94592 Vallejo California 21.7 km
94590 Vallejo California 21.8 km
95442 Glen Ellen California 22.6 km

Postal Hierarchy

ZIP Code94581

ZIP Code (5 digits) with optional ZIP+4 extension.

About ZIP Code 94581 in Napa, California

ZIP Code 94581 for Napa, California is part of the United States postal code system, which uses a numeric code of 5 (or 5+4) digits (e.g. 10001). Addresses here are organised as State → County → City. Within the code structure it maps to ZIP Code 94581.

Administratively it is recorded in Napa, California within United States. Postal codes are assigned by delivery route rather than by administrative boundary, so a single code can cover more than one locality and a locality can fall under several codes.

No building-level records are held for this code in the imported dataset, so only the code and its location details are shown. The absence of records does not mean the zip code is unused.

Couriers, e-commerce checkout forms and address autocomplete tools all rely on the zip code to route mail and to check that a stated address matches the code. Because a zip code identifies a delivery area rather than a single building, two addresses that share the same code can still be some distance apart.

Always write United States ZIP Code in full when completing a form, including any leading zero. Enter a valid US ZIP Code, e.g. 10001 or 10001-1234. Data source: a third-party open dataset. This is a reference snapshot, not a live government feed, so confirm the code with the sender, carrier or postal authority before relying on it.

Buildings & Addresses for This Code

No building-level records were found for this postal code in the imported dataset.
Information provided on CodeReff is for reference purposes only. Always verify financial and banking details with the relevant institution before use.