Napa County California is covered by a total of 14 ZIP Codes. There are 4 ZIP Codes in Napa County that extend into adjacent counties (Lake County, Solano County, and Sonoma County). Of the ZIP codes within or partially within Napa County there are 10 Standard ZIP Codes and 3 PO Box ZIP Codes.
Click on the ZIP Codes in the interactive map to view more information. The map control in the upper right corner can be used to toggle map layers on and off. The red outline is the border of Napa County and can be turned on and off. Each type of postal code can also be turned on and off.
| ZIP Code | ZIP Code City/Town | ZIP Code Type | |||
|---|---|---|---|---|---|
| American Canyon | Standard | |||
| Angwin | Standard | |||
| Calistoga | Standard | |||
| Napa | Standard | |||
| Napa | Standard | |||
| Oakville | PO Box | |||
| Pope Valley | Standard | |||
| Rutherford | PO Box | |||
| Saint Helena | Standard | |||
| Deer Park | Standard | |||
| Napa | PO Box | |||
| Vallejo | Standard | |||
| Yountville | Standard | |||
| Middletown | Standard |