American Canyon California ZIP Codes
American Canyon holds a single ZIP code.
Every ZIP code in American Canyon
| ZIP code | County |
|---|---|
| 94503 | Napa County |
We do not publish a delivery type (standard, PO box, unique) or a neighbourhood for each ZIP. USPS delivery-type products are licensed, and no clean-rights source maps ZIP codes to neighbourhoods — so the American Canyon codes above are listed without a column we would have to invent.
Scope every ZIP code recorded for American Canyon. Source GeoNames US postal codes (2026-07 postal dump) and Census 2024 county Gazetteer (2024 Gazetteer). Updated . ZIP codes are delivery-route groupings, not areas; the boundaries implied by any ZIP map are approximations.
How these codes cluster
Every American Canyon ZIP code begins 945. Those first three digits identify the sectional center facility that processes mail for this part of California. Statewide that range covers 93 ZIP codes, so American Canyon accounts for 1% of it.
Every California ZIP prefix and the region it covers →
Area codes covering American Canyon
ZIP codes and area codes are separate systems — one routes mail, the other routes calls — and they do not share boundaries. The codes below serve the same ground American Canyon occupies.
American Canyon California area codes in full →
Where American Canyon's ZIP codes sit
- Reference points and footprint
- Not an official NANPA boundary
- Not a USPS delivery area
Cities near American Canyon
| City | Distance | ZIP codes |
|---|---|---|
| Vallejo California ZIP codes | 5.0 mi | 4 ZIP codes |
| Napa California ZIP codes | 8.5 mi | 3 ZIP codes |
| Benicia California ZIP codes | 9.3 mi | 1 ZIP code |
| Hercules California ZIP codes | 11 mi | 1 ZIP code |
| Pinole California ZIP codes | 13 mi | 1 ZIP code |
| Sonoma California ZIP codes | 13 mi | 1 ZIP code |
| Fairfield California ZIP codes | 14 mi | 2 ZIP codes |
| Suisun City California ZIP codes | 14 mi | 1 ZIP code |
Straight-line distance between place reference points, not driving distance.