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ZIP Code Database - Facts & Stats

Data Last Updated: May 1, 2022

ZIP Codes for City of Knightsen, CA

Knightsen, CA Covers 1 ZIP Code

ZIP CodeTypeCountyPopulationArea Code(s)
ZIP Code 94548P.O. BoxContra Costa412925

Timezone(s):Pacific (GMT -08:00)
Population:1,568 (More Details)
Male Population:813
Female Population:755
Median Age:43
ZIP Codes:1
Area Codes:1
Total Area:804 square miles (county)
Land Area:723 square miles (county)
Water Area:81 square miles (county)

Knightsen, CA Demographic Information *

Total population1,568
Male population813
Female population755
Median age (years)42.6
White Population1,268
Black Population14
Indian Population8
Asian Population28
Hawaiian Population3
Hispanic Population454
Median age (Male)42.2
Median age (Female)42.8
Total households531
Family households (families)400
Average household size2.95
Average family size3.34
Total housing units582
* 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],