San Mateo, CA zip codes
San Mateo, California has 5 zip codes (4 residential, 1 PO box or single-organization). Most of it is in San Mateo County. Together these zip codes are home to about 140K people.
Zip codes
5
Population
140K
All zips combined
Largest zip
94403
43,276 residents
Income range
$122K–$192K
Median by zip