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ZIP Codes for City of O Fallon, MO - Saint Charles County Missouri

O Fallon, MO Covers 2 ZIP Codes

ZIP Code Area Code(s) Timezone Classification Population
ZIP Code 63366 636 Central General 46,175
ZIP Code 63368 636 Central General 43,360


O Fallon, MO Demographic Information *



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There is no Census data for the city of O FALLON, MO. We have pulled information for the ZIP Code 63366 instead.
Total population 46,175
Male population 22,606
Female population 23,569
Median age (years) 35.6
White Population 42,285
Black Population 1,667
Indian Population 134
Asian Population 797
Hawaiian Population 46
Hispanic Population 1,301
Median age (Male) 34.6
Median age (Female) 36.6
Total households 17,013
Family households (families) 12,583
Average household size 2.71
Average family size 3.15
Total housing units 17,758
* Demographic data is based on 2010 Census.


O Fallon, MO Other Information

  • Located in SAINT CHARLES County, Missouri
  • Other cities and names:
    • COTTLEVILLE
    • DARDENNE
    • DARDENNE PR
    • DARDENNE PRAIRIE
    • OFALLON
    • SAINT PAUL
    • SAINT PETERS
    • ST PETERS



90 Cities within 30 miles of O Fallon, MO


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