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ZIP Code Database - Facts & Stats

Data Last Updated: March 1, 2023


SAINT CHARLES County, MO Covers 17 ZIP Codes

ZIP CodeClassificationCityPopulationTimezoneArea Code(s)
ZIP Code 63301GeneralSaint Charles48,514Central636/314
ZIP Code 63302P.O. BoxSaint Charles0Central636/314
ZIP Code 63303GeneralSaint Charles45,834Central636/314
ZIP Code 63304GeneralSaint Charles40,336Central636/314
ZIP Code 63332GeneralAugusta1,292Central636
ZIP Code 63338P.O. BoxCottleville0Central636/314
ZIP Code 63341GeneralDefiance3,530Central636
ZIP Code 63346P.O. BoxFlinthill0Central636
ZIP Code 63348GeneralForistell6,059Central636
ZIP Code 63365P.O. BoxNew Melle0Central636
ZIP Code 63366GeneralO Fallon46,175Central636
ZIP Code 63367GeneralLake Saint Louis19,433Central636
ZIP Code 63368GeneralO Fallon43,360Central636
ZIP Code 63373GeneralPortage Des Sioux603Central636
ZIP Code 63376GeneralSaint Peters70,828Central636
ZIP Code 63385GeneralWentzville35,750Central636
ZIP Code 63386GeneralWest Alton538Central636

Population:360,485 (More Details)
Male Population:176,922
Female Population:183,563
Median Age:37
ZIP Codes:17
Area Codes:0
Total Area:593 square miles (county)
Land Area:560 square miles (county)
Water Area:32 square miles (county)

SAINT CHARLES, MO Demographic Information

* Demographic data is based on 2010 Census.

Total population of SAINT CHARLES County, MO360,485
Male population of SAINT CHARLES County, MO176,922
Female population of SAINT CHARLES County, MO183,563
Median age (years)36.9
White Population327,018
Black Population14,960
Indian Population851
Asian Population7,850
Hawaiian Population173
Hispanic Population9,983
Median age (Male)35.7
Median age (Female)38
Total households134,274
Family households (families)97,621
Average household size for SAINT CHARLES County, MO2.64
Average family size of SAINT CHARLES County, MO3.11
Total housing units for SAINT CHARLES County, MO141,016

SAINT CHARLES County, MO Covers 13 Cities