There are 10 zip codes in Napa County, California. The most populated is 94558, located in Napa. * 2024 populations estimated based on the latest ACS 5-year data.

CSV JSON
Zip Code
Population
City
9455865,084Napa
9455928,224Napa
9450321,791American Canyon
945747,827Saint Helena
945993,428Yountville
945083,406Angwin
94567719Pope Valley
94576171Deer Park
94573107Rutherford
945620Oakville

Zip Codes in Napa County, California by Population (2024)