ZIP Code 94503

ZIP code 94503 is classified by USPS as a standard delivery area and covers roughly 33.5 square miles in American Canyon, Napa County, California. The area is home to 19,681 residents, producing a population density of 588 people per square mile, and falls within the Los Angeles time zone. These USPS and Census boundary values drive every downstream statistic on this page, including the benchmarks that compare 94503 against California and the nation.

On the economic side, the median household income for ZIP 94503 sits at $121,088 (19% above the California average), while per-capita income is $43,261. The poverty rate stands at 9.4% and the unemployment rate at 5.6%. On housing, the median home value is $697,400 (10% below the state average) with median rent at $2,524 per month, and 74.3% of occupied units are owner-occupied, a direct signal of whether 94503 behaves more like a homeowner neighborhood or a renter-heavy ZIP.

Education and household profile round out the picture: 32.4% of adults hold a bachelor's degree or higher, the median age is 37, and the average commute is 30 minutes. We also surface 9 nearby ZIP codes within roughly 10 miles and 6 additional ZIPs sharing Napa County, so you can benchmark 94503 against its immediate geography rather than a national average alone. Every figure is sourced from the U.S. Census Bureau American Community Survey 5-Year Estimates, HUD Fair Market Rents, and FHFA Home Price Index data, no estimates, no proprietary scoring. Verify with HUD →