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ZIP Code Database - Facts & Stats

Data Last Updated: February 1, 2023

ZIP Codes for City of Palo Alto, CA

Palo Alto, CA Covers 7 ZIP Codes

ZIP CodeTypeCountyPopulation
ZIP Code 94301StandardSanta Clara16,995
ZIP Code 94302P.O. BoxSanta Clara0
ZIP Code 94303StandardSanta Clara45,467
ZIP Code 94304StandardSanta Clara3,627
ZIP Code 94305StandardSanta Clara13,862
ZIP Code 94306StandardSanta Clara26,469
ZIP Code 94309P.O. BoxSanta Clara0

Timezone(s):Pacific (GMT -08:00)
Population:64,403 (More Details)
Male Population:31,490
Female Population:32,913
Median Age:42
ZIP Codes:7
Area Codes:1
Total Area:1,304 square miles (county)
Land Area:1,290 square miles (county)
Water Area:14 square miles (county)

Palo Alto, CA Demographic Information *

Total population64,403
Male population31,490
Female population32,913
Median age (years)41.9
White Population41,359
Black Population1,197
Indian Population121
Asian Population17,461
Hawaiian Population142
Hispanic Population3,974
Median age (Male)40.5
Median age (Female)43.1
Total households26,493
Family households (families)16,477
Average household size2.41
Average family size3.04
Total housing units28,216
* Demographic data is based on 2010 Census. Products


  1. U.S. Postal Service [Last Updated: 2/1/2023],
  2. Internal Data Creation [Last Updated: 2/1/2023],
  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],