San Mateo, CA Demographics & ZIP Codes
San Mateo, California demographics and median household income by ZIP code (in San Mateo County) — 3 ZIP codes — population 104,585 — median income $160,255 — avg. home value $1,616,400. Compare income, housing, and population across ZIP codes on US5.
San Mateo demographics
San Mateo, California covers 3 ZIP codes primarily in San Mateo County, with a combined ZIP-area population of about 104,585.
Across ZIP codes with age data, the average median age is about 38.3 years.
Median household income in San Mateo
The average median household income across ZIP codes in San Mateo, California is about $160,255 — about 63% above the CA ZIP average ($98,324), and about 113% above the U.S. median ($75,149).
Among ZIPs with income data, 94403 is near the top at about $179,825, while 94401 is near the bottom at about $121,258.
Housing in San Mateo
For housing in San Mateo, California, the average median home value is about $1,616,400 and the average median rent is about $2,966.
The most populous ZIP in this set is 94403 (about 43,459 residents). Use the table below to compare population, income, and home values across codes.
ZIP codes in San Mateo
Sort by population, income, or home value. Click a column header to toggle ascending / descending.
| ZIP | City | County | State | Population ↓ | Income | Home value |
|---|---|---|---|---|---|---|
| 94403 | San Mateo | San Mateo County | CA | 43,459 | $179,825 | $1,725,900 |
| 94401 | San Mateo | San Mateo County | CA | 35,628 | $121,258 | $1,123,300 |
| 94402 | San Mateo | San Mateo County | CA | 25,498 | $179,683 | $2,000,001 |
Frequently asked questions
What are the demographics of San Mateo?
San Mateo, California has a combined ZIP-area population of about 104,585 across 3 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 San Mateo?
The average median household income across ZIP codes in San Mateo, California is about $160,255, about 63% above the state ZIP average ($98,324), and about 113% above the U.S. median ($75,149). Average median home value is about $1,616,400. Among ZIPs with data, 94403 is near the top ($179,825) and 94401 is near the bottom ($121,258).
How many ZIP codes are in San Mateo?
San Mateo, California includes 3 ZIP codes on US5. Each row links to demographics, median income, and housing for that code.
Where can I find ZIP code demographics for San Mateo?
This page lists ZIP codes in San Mateo, California with population, median household income, and home value. Select a ZIP for a full demographics profile.