| | Augusta town | 2902512 | St. Charles County 29183 | MO | St. Louis, MO-IL 41180 | St. Louis-St.
Charles-Farmington, MO-IL 476 | | https://maps.google.com/?q=Augustatown+MO |
| | Cottleville city | 2916678 | St. Charles County 29183 | MO | St. Louis, MO-IL 41180 | St. Louis-St.
Charles-Farmington, MO-IL 476 | | https://maps.google.com/?q=Cottlevillecity+MO |
| | Dardenne Prairie city | 2918253 | St. Charles County 29183 | MO | St. Louis, MO-IL 41180 | St. Louis-St.
Charles-Farmington, MO-IL 476 | | https://maps.google.com/?q=DardennePrairiecity+MO |
| | Flint Hill city | 2924688 | St. Charles County 29183 | MO | St. Louis, MO-IL 41180 | St. Louis-St.
Charles-Farmington, MO-IL 476 | | https://maps.google.com/?q=FlintHillcity+MO |
| | Foristell city (part) | 2925120 | St. Charles County 29183 | MO | St. Louis, MO-IL 41180 | St. Louis-St.
Charles-Farmington, MO-IL 476 | | https://maps.google.com/?q=Foristellcity+MO |
| | Josephville village | 2937700 | St. Charles County 29183 | MO | St. Louis, MO-IL 41180 | St. Louis-St.
Charles-Farmington, MO-IL 476 | | https://maps.google.com/?q=Josephvillevillage+MO |
| | Lake St. Louis city | 2940043 | St. Charles County 29183 | MO | St. Louis, MO-IL 41180 | St. Louis-St.
Charles-Farmington, MO-IL 476 | | https://maps.google.com/?q=LakeSt.Louiscity+MO |
| | New Melle city | 2952148 | St. Charles County 29183 | MO | St. Louis, MO-IL 41180 | St. Louis-St.
Charles-Farmington, MO-IL 476 | | https://maps.google.com/?q=NewMellecity+MO |
| | O'Fallon city | 2954074 | St. Charles County 29183 | MO | St. Louis, MO-IL 41180 | St. Louis-St.
Charles-Farmington, MO-IL 476 | | https://maps.google.com/?q=O'Falloncity+MO |
| | Portage Des Sioux city | 2959150 | St. Charles County 29183 | MO | St. Louis, MO-IL 41180 | St. Louis-St.
Charles-Farmington, MO-IL 476 | | https://maps.google.com/?q=PortageDesSiouxcity+MO |