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Data Last Updated: March 1, 2023
SAINT CHARLES County, MO ZIP Codes
SAINT CHARLES County, MO Covers 17 ZIP Codes
| ZIP Code | Classification | City | Population | Timezone | Area Code(s) | | ZIP Code 63301 | General | Saint Charles | 48,514 | Central | 636/314 | | ZIP Code 63302 | P.O. Box | Saint Charles | 0 | Central | 636/314 | | ZIP Code 63303 | General | Saint Charles | 45,834 | Central | 636/314 | | ZIP Code 63304 | General | Saint Charles | 40,336 | Central | 636/314 | | ZIP Code 63332 | General | Augusta | 1,292 | Central | 636 | | ZIP Code 63338 | P.O. Box | Cottleville | 0 | Central | 636/314 | | ZIP Code 63341 | General | Defiance | 3,530 | Central | 636 | | ZIP Code 63346 | P.O. Box | Flinthill | 0 | Central | 636 | | ZIP Code 63348 | General | Foristell | 6,059 | Central | 636 | | ZIP Code 63365 | P.O. Box | New Melle | 0 | Central | 636 | | ZIP Code 63366 | General | O Fallon | 46,175 | Central | 636 | | ZIP Code 63367 | General | Lake Saint Louis | 19,433 | Central | 636 | | ZIP Code 63368 | General | O Fallon | 43,360 | Central | 636 | | ZIP Code 63373 | General | Portage Des Sioux | 603 | Central | 636 | | ZIP Code 63376 | General | Saint Peters | 70,828 | Central | 636 | | ZIP Code 63385 | General | Wentzville | 35,750 | Central | 636 | | ZIP Code 63386 | General | West Alton | 538 | Central | 636 |
| Timezone(s): | Central |
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| Population: | 360,485 (More Details) |
| Male Population: | 176,922 |
| Female Population: | 183,563 |
| Median Age: | 37 |
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| ZIP Codes: | 17 |
| Cities: | 13 |
| Counties: | 1 |
| Area Codes: | 0 |
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| 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, MO | 360,485 | | Male population of SAINT CHARLES County, MO | 176,922 | | Female population of SAINT CHARLES County, MO | 183,563 | | Median age (years) | 36.9 | | White Population | 327,018 | | Black Population | 14,960 | | Indian Population | 851 | | Asian Population | 7,850 | | Hawaiian Population | 173 | | Hispanic Population | 9,983 | | Median age (Male) | 35.7 | | Median age (Female) | 38 | | Total households | 134,274 | | Family households (families) | 97,621 | | Average household size for SAINT CHARLES County, MO | 2.64 | | Average family size of SAINT CHARLES County, MO | 3.11 | | Total housing units for SAINT CHARLES County, MO | 141,016 |
SAINT CHARLES County, MO Covers 13 Cities
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Postal Code Database