Residential delivery area · California
ZIP Code 94503: American Canyon, CA
ZIP code 94503 uses the postal name American Canyon, California and lies mostly in Napa County (66% of its land) with the rest in Solano County (Census 2020 ZIP-county file). About 22,000 people live there (Census Bureau, ACS 2020-2024). Median household income is $121,088 (Census Bureau, ACS 2020-2024). By Census place, 22% of its land lies in American Canyon; 77% is outside any Census place.
- ACS2020-24
- Census2020
- FHFA2025
- ZBP2023
- IRS2022
- Town
- American Canyon · its only residential ZIP
- County
- Napa County (66%); Solano County (34%)
- Census places
- American Canyon
- Neighborhoods
- Collins, Lombard, Lowell, Squab GeoNames
- Metro area
- Napa, CA
- House districts
- CA-4 (66%), CA-8 (34%) 119th Congress, by share of land
- State
- California
- Time zone
- Pacific
- Land area
- 27.0 sq mi · 808 people per sq mi
Where is ZIP code 94503?
94503 centers on 38.188°, -122.224° and covers 27.0 square miles of land plus 1.6 of water. It borders 5 ZIP codes: 94589, 94591, 94559, 94534, 94558.
The map draws ZIP code areas only. For the streets inside 94503, open its center on OpenStreetMap.
Source: U.S. Census Bureau, 2020 ZCTA cartographic boundaries and the 2023 Gazetteer (2020 ZCTAs); ZIP-to-county shares, Census places and House districts (119th Congress) from the Census 2020 relationship files (shares of land); metro area from the OMB delineation (July 2023); town name and time zone from simplemaps US ZIP Codes (CC BY 4.0); neighborhoods from the GeoNames gazetteer (CC BY 4.0), placed in this ZIP code by PlainZIP.
How does 94503 compare with the rest of Napa County?
| Measure | 94503 | In Napa County | In CA |
|---|---|---|---|
| People (ACS 2020-2024) | 21,841 | 5th of 13 | 780th of 1,802 |
| Median household income | $121k | 2nd of 8 | 345th of 1,189 |
| Median home value | $697k | 8th of 9 | 681st of 1,317 |
Its median household income is higher than in 91% of U.S. residential ZIP codes, and it is denser than 76% of all U.S. residential ZIP codes. ZIP codes at the ACS caps ($250,000 or more for household income, $2,000,000 or more for home value) share the top rank.
Source: U.S. Census Bureau, ACS 2020-2024 5-year estimates (B01003, B19013, B25077); ranks by PlainZIP over residential ZIP codes (ZCTAs).
How many people live in 94503?
The 2020 Census counted 22,069 people in 94503; the ACS, which samples households over 2020-2024, estimates 21,841. Its boundary changed between the 2010 and 2020 censuses, so the two counts are not compared.
- People, ACS 2020-2024
- 21,841
- 2020 Census count
- 22,069
- Households
- 6,063
- Median age
- 37.0
Source: U.S. Census Bureau, ACS 2020-2024 5-year estimates (B01003, B01002, B11001); 2020 Census (DHC P1); 2010 Census (SF1 P1).
Who lives in 94503?
Of the 21,841 people the ACS estimates in 94503, 24.9% are under 18 and 13.8% are 65 or older. The largest group by race and Hispanic origin is Asian (not Hispanic) (32.7%), then Hispanic or Latino (31.9%).
- Under 1824.9%
- 18 to 6461.2%
- 65 and older13.8%
- Asian, not Hispanic32.7%
- Hispanic or Latino31.9%
- White, not Hispanic20.9%
- Other or two or more9.8%
- Black, not Hispanic4.8%
Source: U.S. Census Bureau, ACS 2020-2024 5-year estimates (B01001 age by sex, B03002 Hispanic or Latino origin by race); shares of the estimated population, small ZIP codes carry wide margins.
What do households in 94503 earn?
Median household income is $121,088 (ACS 2020-2024), the 2nd highest of the 8 ranked ZIP codes in Napa County.
- Median household income
- $121,088
- Income per person
- $43,261
- Below the poverty line
- 9.4%
- Unemployed (of the labor force)
- 5.6%
- Adults 25+ with a bachelor's degree
- 32.4%
- Adjusted gross income per tax return, 2022
- $86,42510,530 returns; wages 81% of AGI (IRS)
Source: U.S. Census Bureau, ACS 2020-2024 and 2015-2019 5-year estimates (B19013, B19301, B17001, B23025, B15003; 2015-2019 dollars converted with the BLS CPI-U, 1.22699); IRS Statistics of Income, ZIP code data, tax year 2022 (adjusted gross income per return, filed under the address on the return).
What are homes worth in 94503?
FHFA's house price index for 94503, built from repeat sales and appraisals of the same homes, rose 66% from 2015 to 2025 and rose 26% from 2020 to 2025, and moved −2.9% in 2025.
- Median home value (owners' estimate)
- $697,400
- Median gross rent
- $2,524
- Homes owned by their occupants
- 74.3%
- Housing units
- 6,206
Source: U.S. Census Bureau, ACS 2020-2024 5-year estimates (B25077, B25064, B25003, B25001); FHFA House Price Index, annual five-digit ZIP, updated 2026-03-31.
What businesses are in 94503?
363 business establishments had a location in this ZIP code in 2023, 61 more than in 2018; the most are in transportation and warehousing (ZIP Code Business Patterns).
- Transportation and warehousing47
- Administrative and support and waste management and remediation services42
- Construction40
- Health care and social assistance40
- Accommodation and food services37
- Other services (except public administration)30
Source: U.S. Census Bureau, ZIP Code Business Patterns 2023 and 2018 (establishments with paid employees, by the business's ZIP code).
Which ZIP codes are next to 94503?
| ZIP | Town | People | Household income | Distance |
|---|---|---|---|---|
| 94589 | Vallejo | 29,990 | $93k | 3.4 mi |
| 94591 | Vallejo | 58,193 | $105k | 4.4 mi |
| 94559 | Napa | 27,714 | $105k | 5.9 mi |
| 94534 | Fairfield | 41,203 | $140k | 6.8 mi |
| 94558 | Napa | 63,657 | $113k | 14.0 mi |
| 94590 | Vallejo | 37,128 | $65k | 6.5 mi (near) |
| 94592 | Vallejo | 1,049 | $116k | 7.5 mi (near) |
| 94510 | Benicia | 26,749 | $121k | 7.7 mi (near) |
| 94525 | Crockett | 3,372 | $111k | 9.7 mi (near) |
Source: PlainZIP from the Census 2020 ZCTA boundaries (shared edges) and internal points; figures ACS 2020-2024.