American Canyon is a city in Napa County, California, home to about 21,691 people across 6.1 square miles. Its ZIP code is 94503.
Homes sold for a median of $385 per square foot in the three months ending August 2026, a seller’s market.
Each card is that ZIP code’s whole market, including any part outside American Canyon. Seller’s market: under 4 months of supply; buyer’s market: over 6. Methodology
We’re writing up American Canyon’s story and what everyday life there is like, for people thinking about moving in.
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| Nearest major airport | Oakland San Francisco Bay Airport (OAK)31 miles away |
|---|---|
| Closer regional airport | Buchanan Field (CCR)16 miles away |
| Nearest city of 250,000+ | Oakland, CA27 miles away |
| Nearest city of 1 million+ | Los Angeles, CA358 miles away |
Straight-line distances from the center of American Canyon; driving is longer.
Source: Airports from OurAirports (scheduled passenger service); city centers and populations from the U.S. Census Bureau.
Source: Members of Congress from the congress-legislators project; districts from the Census Bureau’s relationship files; governor and mayor from Wikidata.
American Canyon had 21,837 residents in the 2020 census, up 123% since 2000.
It’s the 334th largest of 1,563 towns in California by population.
Napa County grew from 16,451 residents in 1900 to 138,019 in 2020.
Napa County, 1900–2020
Source: U.S. Census Bureau decennial censuses (counties 1900–1990 from the Bureau’s historical county file).
Average highs peak around 80°F in summer, and winter lows average 38°F. About 20.3 inches of rain and melted snow fall in a typical year.
Source: NOAA 1991–2020 climate normals, Napa Co Ap, CA weather station (3 miles away).
66,372 jobs at 4,486 businesses in Napa County. The biggest industries by employees:
Source: U.S. Census Bureau County Business Patterns 2023 (private employers; jobs counted where people work).
49 doctors and other health care providers list an office in American Canyon.
Nearest hospitals
Providers with an office here
| Primary care doctors | 4 |
|---|---|
| Specialist doctors | 2 |
| Dentists | 14 |
| Nurse practitioners and physician assistants | 10 |
| Mental health providers | 13 |
| Physical and occupational therapists | 4 |
| Optometrists | 1 |
| Chiropractors | 1 |
| Pharmacies | 3 |
Source: Hospitals from CMS Hospital General Information (ratings are CMS overall star ratings); straight-line distances; providers from the CMS National Plan and Provider Enumeration System (NPPES), by practice address and primary specialty.
Parks (17 nearby)
Grocery stores (3 nearby)
Pharmacies (3 nearby)
Libraries (1 nearby)
Museums
Theaters and performance venues
Counts are within about 2 miles of the center of town.
Source: Map data © OpenStreetMap contributors (openstreetmap.org/copyright), as mapped by volunteers; it can miss places or include closed ones.
Established in 1992.
Source: Wikidata (wikidata.org), the free knowledge base; people are listed by place of birth.
Public schools here are run by Napa Valley Unified, Mt. Diablo Unified. Check each district’s attendance zones for a specific address.
| School | Grades | Students | Type | Distance |
|---|---|---|---|---|
| Canyon Oaks ElementaryAmerican Canyon | K–5 | 696 | Public | 0.6 mi |
| Napa Junction ElementaryAmerican Canyon | K–5 | 531 | Public | 1.3 mi |
| Pleasant Hill MiddlePleasant Hill | 6–8 | 738 | Public | 18.9 mi |
| American Canyon HighAmerican Canyon | 9–12 | 1,720 | Public | 0.9 mi |
| School | Grades | Students | Affiliation | Distance |
|---|---|---|---|---|
| Calvary Baptist Christian AcademyAmerican Canyon | Pre-K–11 | 63 | Baptist | 1.2 mi |
Source: U.S. Department of Education, NCES: Common Core of Data (2024-2025) for public schools; Private School Universe Survey (2023-2024) for private schools. Listed by address; we don’t rate schools.
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Town boundaries don’t always match ZIP codes: a ZIP code can cross into neighboring towns, and a town can share a ZIP code with its neighbors. Facts describe the town itself; market figures describe whole ZIP codes.