Napa County, CA ZIP codes
There are 11 ZIP codes in Napa County, CA, in 9 towns, from 94503 to 94599. The largest are 94558 (Napa), 94559 (Napa) and 94503 (American Canyon). 1 more crosses into it from a neighbouring county: 94515.
The county seat is Napa.
- ZIP codes
- 11
- Partly in it
- 1 more
- Towns
- 9
- County seat
- Napa
- County FIPS
06055- State
- California
- Population
- 134,869
- Median household income
- $111,471
- Land area
- 752 sq mi
- Metro area
- Napa
Napa County ZIP codes by town
Each ZIP code is listed under the county most of its land lies in and the town the Postal Service names it for; a ZIP code's own page shows exactly how it is split.
ZIP codes partly in Napa County
This ZIP code lies mostly in a neighbouring county but covers a twentieth or more of Napa County.
- 94515 Calistoga · mostly in Sonoma County
Map of Napa County ZIP codes
The ZIP codes of Napa County, shaded. Outlines are Census ZIP Code Tabulation Areas (2020), which approximate the mail routes; PO-box and single-address codes have no area and are not drawn. Click any area to open its ZIP code.
Napa County in numbers
About 134,869 people live in Napa County, in 49,763 households, the 34th most populous of California's 58 counties. The median household income is $111,471 a year, 12% above the California median of $99,122 (US: $80,734). The median owner-occupied home is valued at $869,500 (18% above the California median), and median gross rent is $2,237 a month. The median age is 42.9; 39.8% of adults 25 and over hold a bachelor's degree or higher (37.1% across California); the average commute takes 25 minutes.
| Population | 134,869 |
|---|---|
| Households | 49,763 |
| Median age | 42.9 |
| Median household income | $111,471 |
| Median home value | $869,500 |
| Median gross rent | $2,237 |
| Bachelor's degree or higher | 39.8% |
| Mean commute | 24.9 min |
| Population density | 179 / sq mi |
U.S. Census Bureau, American Community Survey 2020–2024 5-year estimates. Survey estimates carry margins of error, wider for small places. Sources and methods.
Largest towns in Napa County
| Town | ZIP codes | Population |
|---|---|---|
| Napa | 3 | 78,239 |
| American Canyon | 1 | 21,691 |
| St. Helena | 1 | 5,318 |
| Yountville | 1 | 3,348 |
| Angwin | 1 | 2,931 |
| Deer Park | 1 | 720 |
| Pope Valley | 1 | 668 |
| Rutherford | 1 | 84 |
Population of the census place of that name where there is one, otherwise of the ZIP codes the Postal Service addresses by it. A town's ZIP codes can reach past the county line.
Neighbouring counties
Counties that share a ZIP code with Napa County.
Not sure you are in Napa County? What county am I in? answers from your location, near a county line included.
Every ZIP code in Napa County, with figures
| ZIP | City | Type | Population | Median income | Median home |
|---|---|---|---|---|---|
94503 | American Canyon , CA | Standard | 21,841 | $121,088 | $697,400 |
94508 | Angwin , CA | Standard | 3,495 | $116,667 | $775,600 |
94558 | Napa , CA | Standard | 63,657 | $113,269 | $890,500 |
94559 | Napa , CA | Standard | 27,714 | $105,188 | $898,600 |
94562 | Oakville , CA | Standard | 0 | — | — |
94567 | Pope Valley , CA | Standard | 668 | $80,833 | $471,400 |
94573 | Rutherford , CA | Standard | 84 | $250,000+ | — |
94574 | Saint Helena , CA | Standard | 7,457 | $139,474 | $1,637,800 |
94576 | Deer Park , CA | Standard | 103 | $170,677 | $986,100 |
94581 | Napa , CA | No street area | — | — | — |
94599 | Yountville , CA | Standard | 3,348 | $80,372 | $808,900 |
Cite this page
zipcodes.pro. “Napa County ZIP codes.” Data release 2026-10-12. Retrieved 2026-10-20. https://zipcodes.pro/state/ca/county/napa
Underlying data is public domain or openly licensed — sources, vintages and licences.