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ZIP Code Database - Facts & Stats

Data Last Updated: May 1, 2022

ZIP Codes for City of San Anselmo, CA

San Anselmo, CA Covers 3 ZIP Codes

ZIP CodeTypeCountyPopulationArea Code(s)
ZIP Code 94901StandardMarin41,157415 / 628
ZIP Code 94960StandardMarin15,740415
ZIP Code 94979P.O. BoxMarin0415

Timezone(s):Pacific (GMT -08:00)
Counties:MARIN, CA
Population:12,336 (More Details)
Male Population:5,755
Female Population:6,581
Median Age:45
ZIP Codes:3
Area Codes:2
Total Area:828 square miles (county)
Land Area:520 square miles (county)
Water Area:308 square miles (county)

San Anselmo, CA Demographic Information *

Total population12,336
Male population5,755
Female population6,581
Median age (years)44.9
White Population11,134
Black Population106
Indian Population40
Asian Population437
Hawaiian Population26
Hispanic Population717
Median age (Male)44.3
Median age (Female)45.4
Total households5,243
Family households (families)3,251
Average household size2.34
Average family size2.93
Total housing units5,538
* 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],