Napa, CA ZIP Codes
Napa, California has 3 ZIP codes: 2 for street addresses ( and ) and 1 for PO boxes ().
Your street decides which one you use.
Which Napa ZIP code is my address in?
Street ranges from the Census Bureau, 2026. PO box and organization ZIP codes are not found by street. A new street may be missing: address not found?
Napa ZIP code map
Tap or point to an area to see its ZIP code.Full-size map
94581 has no area on the map: it is a PO box or single-organization ZIP code. Dashed line: Napa city limits.
Map: Census Bureau ZIP Code Tabulation Areas (2020) and place limits (2024).
All Napa ZIP codes by type
| ZIP | Type and post office or station |
|---|---|
| 94558 | street delivery Napa |
| 94559 | street delivery Napa |
| 94581 | PO boxes at the Wine Valley Dpobu post office Wine Valley Dpobu |
Why your mail may say Napa when you live outside it
Napa ZIP codes also cover Moskowite Corner, Silverado Resort and Oakville, so a letter addressed to Napa can go to a home outside the city limits.
A ZIP code does not set your city, school district or tax. Napa County property records show which city you are in.
Napa ZIP code questions
What is the main ZIP code for Napa?
94558, the ZIP code of the main Napa post office at 1625 Trancas St.
Which Napa ZIP codes are for PO boxes only?
94581. Mail to it goes to boxes at the post office, not to street addresses.
What county is Napa in?
Napa County.
ZIP codes for towns near Napa
More towns near Napa: Martinez, San Pablo, Richmond, Santa Rosa, San Rafael, Pleasant Hill, Concord, Pittsburg, Berkeley.
Sources and last checked
USPS ZIP Locale Detail (October 1, 2026), GeoNames (CC BY 4.0), U.S. Census Bureau, HUD-USPS crosswalk.
Checked October 20, 2026. Sources · How we build our lists · Corrections