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ZIP Code Database - Facts & Stats

Data Last Updated: May 1, 2022

ZIP Codes for City of Sylmar, CA

Sylmar, CA Covers 2 ZIP Codes

ZIP CodeTypeCountyPopulationArea Code(s)
ZIP Code 91342StandardLos Angeles91,725818 / 747
ZIP Code 91392P.O. BoxLos Angeles0818 / 747

Timezone(s):Pacific (GMT -08:00)
Population:91,725 (More Details)
Male Population:45,786
Female Population:45,939
Median Age:32
ZIP Codes:2
Area Codes:2
Total Area:4,751 square miles (county)
Land Area:4,058 square miles (county)
Water Area:693 square miles (county)

Sylmar, CA Demographic Information *

There is no Census data for the city of SYLMAR, CA. We have pulled information for the ZIP Code 91342 instead.
Total population91,725
Male population45,786
Female population45,939
Median age (years)31.9
White Population45,803
Black Population4,570
Indian Population968
Asian Population5,091
Hawaiian Population74
Hispanic Population68,444
Median age (Male)30.6
Median age (Female)33.1
Total households23,543
Family households (families)19,276
Average household size3.83
Average family size4.09
Total housing units24,967
* 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],