Napa County, California ZIP Codes
- ZIP records
10 - Cities represented
9 - Sum of listed ZIP population estimates
128,367
Population sum includes positive estimates in these ZIP records; it is not an official county population.
Top ZIP Codes by Population
| Rank | ZIP Code | City | Population estimate |
|---|---|---|---|
| 1 | 94558 | Napa | 63,657 |
| 2 | 94559 | Napa | 27,714 |
| 3 | 94503 | American Canyon | 21,841 |
| 4 | 94574 | Saint Helena | 7,457 |
| 5 | 94508 | Angwin | 3,495 |
| 6 | 94599 | Yountville | 3,348 |
| 7 | 94567 | Pope Valley | 668 |
| 8 | 94576 | Deer Park | 103 |
| 9 | 94573 | Rutherford | 84 |
Cities in Napa County
ZIP Directory
Browse all ZIP data for California
Methodology: Records are grouped by the source file's listed county and state. Population sums add positive ZIP-level estimates and are not official county totals; city counts use distinct city labels in the source.