Saint Charles County, Missouri ZIP Codes

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ZIP Codes in Saint Charles County with Associated Cities & Towns

Saint Charles County, MO - Standard ZIP Codes
63301 | 63303 | 63304 | 63332 | 63341 | 63348 | 63357 | 63366 | 63367 | 63368 | 63373 | 63376 | 63385 | 63386
Saint Charles County, MO - PO Box ZIP Codes (NO DEMOGRAPHIC DATA)
63302 | 63338 | 63346 | 63365
Note: Every ZIP Code has a single ACTUAL City Name assigned by the US Postal Service (USPS).
See the specific ZIP Code for acceptable Alternate City Names and spelling variations.

ZIP Codes in Saint Charles County Address Data

  • Businesses Addresses: 9,823
  • PO Box Addresses: 1,905
  • Residential Addresses: 155,810
    • Multi-Family Addresses: 13,921
    • Single Family Addresses: 141,398

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Map of Saint Charles County, MO ZIP Codes With Actual (Default) City Names

Augusta
Cottleville
Defiance
Flinthill
Foristell
Lake Saint Louis
New Melle
O Fallon
Portage des Sioux
Saint Charles
Saint Peters
Wentzville
West Alton


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