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: 27,534
PO Box Addresses: 15,284
Residential Addresses: 286,350
Multi-Family Addresses: 84,261
Single Family Addresses: 198,523
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Map of San Mateo County, CA ZIP Codes With Actual (Default) City Names
