94402   Zip Code San Mateo San Mateo CA United States

City San Mateo
County San Mateo
State California
Latitude 37.54035
Longitude -122.33388
Population 25,475
Density 5042.75 people per square mile
Time Zone America/Los Angeles
  • All demographic data comes from the 2024 American Community Survey (5-year study).
  • Learn more about each field.
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Household Income

Median household: $172,522
Median individual: $97,902

Race

Mode: 48.9% White

Gender

 53.0% female 

Rent

  $3501 / month  

Median house value: $2,000,001.0

Age

Median: 40.8 years old

Education

With at least college degree: 68.6%
With STEM degree: 58.3%

Marital Status

 55.9% married 

Never married: 30.4%

Labor Force Participation

 65.8% working 

Unemployed: 4.0%

Average Family Size

 3.14 people 

Commute Time

 26.2 minutes 

Health Care

 3.7% uninsured 

Poverty

 5.2%

All data comes from the SimpleMaps US Zips Comprehensive Database, February 2026.

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