ZIP Code 94503
American Canyon · Napa, California
94503 is the ZIP code of American Canyon in Napa, California, United States.
- ZIP Code
- 94503
- County
- Napa
- State
- California
- Country
- United States
Place with ZIP code 94503
| Place | County | Location |
|---|---|---|
| American Canyon | Napa | 38.167, -122.255 |
Near San Francisco
The nearest major city is San Francisco, about 46 km away.
Nearby ZIP codes
Frequently asked questions
Which places use ZIP code 94503?
American Canyon.
Which county and state is 94503 in?
Napa, California, United States.
What is the nearest major city to 94503?
San Francisco, about 46 km away.
Source: GeoNames postal codes (CC BY 4.0), geonames.org, retrieved 2026-10-22. Place coordinates are approximate. Check with the national postal service before sending anything valuable.