Note: Every ZIP Code has a single ACTUAL City Name assigned by the US Postal Service (USPS).
See the specific ZIP Code for acceptable Alternate City Names and spelling variations.
ZIP Codes in San Mateo County Address Data
Businesses Addresses: 28,917
PO Box Addresses: 17,970
Residential Addresses: 282,996
Multi-Family Addresses: 81,439
Single Family Addresses: 197,167
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Map of San Mateo County, CA ZIP Codes With Actual (Default) City Names
