ZIP Code 94021

ZIP code 94021 is classified by USPS as a standard delivery area and covers roughly 11.8 square miles in Loma Mar, San Mateo County, California. The area is home to 192 residents, producing a population density of 16 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 94021 against California and the nation.

On the economic side, the median household income for ZIP 94021 sits at $250,001 (146% above the California average), while per-capita income is $114,055. The poverty rate stands at 0.0% and the unemployment rate at 0.0%. On housing, the median home value is $1,073,100 (39% above the state average) with median rent at — per month, and 71.9% of occupied units are owner-occupied, a direct signal of whether 94021 behaves more like a homeowner neighborhood or a renter-heavy ZIP.

Education and household profile round out the picture: 71.0% of adults hold a bachelor's degree or higher, the median age is 46.8, and the average commute is —. We also surface 9 nearby ZIP codes within roughly 10 miles and 6 additional ZIPs sharing San Mateo County, so you can benchmark 94021 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 →