Foster City, CA ZIP codes

1 ZIP/ZCTA intersecting this Census place in San Mateo County.

ACS 2023 population

32,964

Median household income

$193,633

Median home value

$1,774,500

U.S. Census Bureau, ACS 2019–2023 5-year (vintage 2023). Geography: Census place Foster City (GEOID 0625338). Methodology

Combined population of ZIP/ZCTAs intersecting this place: 35,950 (1 ZIPs).

Combined population of ZIP/ZCTAs intersecting this place. Each intersecting ZIP contributes its full ZCTA population; overlap percents are descriptive only. This is not the Census place ACS headline above. Methodology

Map of Foster City, CA

Census place boundary and intersecting ZIP Code Tabulation Areas for Foster City, CA — Census place boundary for Foster City, CA. Intersecting ZCTAs may extend past the city limit. Not a USPS city limit. Boundaries: U.S. Census Bureau. Methodology · Data sources

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ZIP/ZCTA overlap with Foster City

Population overlap

Share of each ZIP/ZCTA’s population located within Foster City, based on ZIP Code Database place-overlap data. This is a population measure, not land-area overlap or the Census-place population.

9440490.6%

ZIP Code Database place-overlap table, field percent_of_zip_population_in_place, keyed by place_geoid. Not ACS 2019–2023. Overlap vintage is the shipped overlap table and is separate from ACS. Methodology

ZIP codes intersecting Foster City

ZIP	City	County	Population	Income
94404	San Mateo	San Mateo County	35,950	$182,417