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ZIP Code Database - Facts & Stats

Data Last Updated: May 1, 2022

ZIP Codes for City of El Cajon, CA

El Cajon, CA Covers 4 ZIP Codes

ZIP CodeTypeCountyPopulationArea Code(s)
ZIP Code 92019StandardSan Diego42,598619 / 858
ZIP Code 92020StandardSan Diego57,767619 / 858
ZIP Code 92021StandardSan Diego65,068619 / 858
ZIP Code 92022P.O. BoxSan Diego0619 / 858

Timezone(s):Pacific (GMT -08:00)
Counties:SAN DIEGO, CA
Population:99,478 (More Details)
Male Population:48,632
Female Population:50,846
Median Age:34
ZIP Codes:4
Area Codes:2
Total Area:4,526 square miles (county)
Land Area:4,207 square miles (county)
Water Area:319 square miles (county)

El Cajon, CA Demographic Information *

Total population99,478
Male population48,632
Female population50,846
Median age (years)33.7
White Population68,897
Black Population6,306
Indian Population835
Asian Population3,561
Hawaiian Population495
Hispanic Population28,036
Median age (Male)32.5
Median age (Female)34.8
Total households34,134
Family households (families)23,624
Average household size2.84
Average family size3.37
Total housing units35,850
* 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],