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ZIP Code Database - Facts & Stats

Data Last Updated: May 1, 2022

ZIP Codes for City of San Mateo, CA

San Mateo, CA Covers 5 ZIP Codes

ZIP CodeTypeCountyPopulationArea Code(s)
ZIP Code 94401StandardSan Mateo34,429650
ZIP Code 94402StandardSan Mateo23,981650
ZIP Code 94403StandardSan Mateo39,642650
ZIP Code 94404StandardSan Mateo33,749650
ZIP Code 94497UniqueSan Mateo0650

Timezone(s):Pacific (GMT -08:00)
Counties:SAN MATEO, CA
Population:97,207 (More Details)
Male Population:47,465
Female Population:49,742
Median Age:39
ZIP Codes:5
Area Codes:1
Total Area:741 square miles (county)
Land Area:448 square miles (county)
Water Area:292 square miles (county)

San Mateo, CA Demographic Information *

Total population97,207
Male population47,465
Female population49,742
Median age (years)38.9
White Population56,214
Black Population2,296
Indian Population505
Asian Population18,384
Hawaiian Population1,998
Hispanic Population25,815
Median age (Male)37.3
Median age (Female)40.4
Total households38,233
Family households (families)23,444
Average household size2.51
Average family size3.14
Total housing units40,014
* Demographic data is based on 2010 Census. Products


  1. U.S. Postal Service [Last Updated: 5/1/2022],
  2. Internal Data Creation [Last Updated: 5/1/2022],
  3. U.S. Geological Survey [Updated as needed],
  4. U.S. Census [Updated Yearly],
  5. U.S. Census 2010 [Decennial] [Last Updated: 1/1/2010],