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ZIP Code Database - Facts & Stats

Data Last Updated: February 1, 2023

ZIP Codes for City of Saint Charles, MO

Saint Charles, MO Covers 4 ZIP Codes

ZIP CodeTypeCountyPopulation
ZIP Code 63301StandardSaint Charles48,514
ZIP Code 63302P.O. BoxSaint Charles0
ZIP Code 63303StandardSaint Charles45,834
ZIP Code 63304StandardSaint Charles40,336

Timezone(s):Central (GMT -06:00)
Population:65,794 (More Details)
Male Population:32,253
Female Population:33,541
Median Age:37
ZIP Codes:4
Area Codes:2
Total Area:593 square miles (county)
Land Area:560 square miles (county)
Water Area:32 square miles (county)

Saint Charles, MO Demographic Information *

Total population65,794
Male population32,253
Female population33,541
Median age (years)36.6
White Population57,557
Black Population3,889
Indian Population182
Asian Population1,673
Hawaiian Population47
Hispanic Population2,759
Median age (Male)34.5
Median age (Female)39.1
Total households26,715
Family households (families)16,128
Average household size2.29
Average family size2.9
Total housing units28,590
* 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],