US Gazetteer > Missouri Gazetteer > Missouri ZIP Codes > County ZIP Codes > Saint Charles ZIP Codes

ZIP Codes in Saint Charles County with Associated Cities & Towns

Augusta   63332
Cottleville   63304
Cottleville   63338
Cottleville   63366
Cottleville   63376
Dardenne Pr   63366
Dardenne Pr   63368
Dardenne Prairie   63366
Dardenne Prairie   63368
Defiance   63341
Flinthill   63346
Foristell   63348
 Lake Saint Louis   63367
Lake St Louis   63367
New Melle   63365
O Fallon   63366
O Fallon   63367
O Fallon   63368
Portage des Sioux   63373
Prtg de Sioux   63373
Prtg de Souix   63373
Saint Charles   63301
Saint Charles   63302
Saint Charles   63303
 Saint Charles   63304
Saint Paul   63366
Saint Peters   63303
Saint Peters   63304
Saint Peters   63366
Saint Peters   63376
St Peters   63303
St Peters   63304
St Peters   63366
Weldon Spring   63304
Wentzville   63385
West Alton   63386

ZIP Codes - Key Concepts

  1. ZIP Codes are categories for grouping mailing addresses and are not exact geographic regions.
  2. The centroid of a ZIP Code may be in one County and the associated city/town in another.
  3. In rural areas, a single ZIP Code may be used for cities and towns in several different Counties.
  4. ZIP Code "areas" can overlap, be subsets of each other, or be artificial constructs with no geographic area.
  5. ZIP Codes are only loosely tied to cities.