94403   Zip Code San Mateo San Mateo CA United States

City San Mateo
County San Mateo
State California
Latitude 37.53844
Longitude -122.30454
Population 43,276
Density 7684.97 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: $174,917
Median individual: $78,440

Race

Mode: 39.0% White

Gender

 50.0% female 

Rent

  $3263 / month  

Median house value: $1,749,678.0

Age

Median: 38.9 years old

Education

With at least college degree: 60.5%
With STEM degree: 59.8%

Marital Status

 55.3% married 

Never married: 32.6%

Labor Force Participation

 70.6% working 

Unemployed: 5.8%

Average Family Size

 3.10 people 

Commute Time

 26.3 minutes 

Health Care

 3.2% uninsured 

Poverty

 6.6%

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

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