ZIP codes
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Foster City, CA Demographics & ZIP Codes
Foster City, California demographics and median household income by ZIP code (in San Mateo County) — 1 ZIP codes — population 35,950 — median income $182,417 — avg. home value $1,682,700. Compare income, housing, and population across ZIP codes on US5.
Population
35,950
Median household income (avg.)
$182,417
243% of U.S. median
Average home value
$1,682,700
483% of U.S. median
Average rent
$3,501
301% of U.S. median
Median age (avg.)
40.1
Foster City demographics
Foster City, California covers 1 ZIP code primarily in San Mateo County, with a combined ZIP-area population of about 35,950.
Across ZIP codes with age data, the average median age is about 40.1 years.
Median household income in Foster City
The average median household income across ZIP codes in Foster City, California is about $182,417 — about 86% above the CA ZIP average ($98,324), and about 143% above the U.S. median ($75,149).
The highest median household income among listed ZIPs is about $182,417 in 94404.
Housing in Foster City
For housing in Foster City, California, the average median home value is about $1,682,700 and the average median rent is about $3,501.
The most populous ZIP in this set is 94404 (about 35,950 residents). Use the table below to compare population, income, and home values across codes.
ZIP codes in Foster City
Sort by population, income, or home value. Click a column header to toggle ascending / descending.
| ZIP | City | County | State | Population ↓ | Income | Home value |
|---|---|---|---|---|---|---|
| 94404 | Foster | San Mateo County | CA | 35,950 | $182,417 | $1,682,700 |
Frequently asked questions
What are the demographics of Foster City?
Foster City, California has a combined ZIP-area population of about 35,950 across 1 ZIP codes (primarily San Mateo County). Browse the ZIP table below for population, income, and housing by code.
What is the median household income in Foster City?
The average median household income across ZIP codes in Foster City, California is about $182,417, about 86% above the state ZIP average ($98,324), and about 143% above the U.S. median ($75,149). Average median home value is about $1,682,700.
How many ZIP codes are in Foster City?
Foster City, California includes 1 ZIP codes on US5. Each row links to demographics, median income, and housing for that code.
Where can I find ZIP code demographics for Foster City?
This page lists ZIP codes in Foster City, California with population, median household income, and home value. Select a ZIP for a full demographics profile.