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ZIP Code Database - Facts & Stats

Data Last Updated: May 1, 2023

ZIP Codes for City of Antioch, CA

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Area Code(s):925
Timezone(s):Pacific (GMT -08:00)
City Population:102,372 (More Details)
CBSA:San Francisco-Oakland-Berkeley, CA
Congressional District(s):08, 10
Land Area:723 square miles (county)
Water Area:81 square miles (county)

2 ZIP Codes

Antioch, CA ZIP Code Boundaries

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Antioch, CA Covers 2 ZIP Codes

ZIP CodeTypePopulation% of PopulationAliases

Antioch, CA Demographic Information *

Total population**102,372
Male population49,807
Female population52,565
Median age (years)33.8
White Population50,083
Black Population17,667
Indian Population887
Asian Population10,709
Hawaiian Population817
Hispanic Population32,436
Median age (Male)32.4
Median age (Female)35
Total households32,252
Family households (families)25,023
Average household size3.15
Average family size3.52
Total housing units34,849
* Demographic data is based on 2010 Census for the City of ANTIOCH.
** City and ZIP Code Population will not be equal due to differences in their geographies.


  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],