| | West Alton city | 2978514 | St. Charles County 29183 | MO | St. Louis, MO-IL 41180 | St. Louis-St.
Charles-Farmington, MO-IL 476 | | https://maps.google.com/?q=WestAltoncity+MO |
| | Wentzville city | 2978442 | St. Charles County 29183 | MO | St. Louis, MO-IL 41180 | St. Louis-St.
Charles-Farmington, MO-IL 476 | | https://maps.google.com/?q=Wentzvillecity+MO |
| | Weldon Spring Heights
town | 2978334 | St. Charles County 29183 | MO | St. Louis, MO-IL 41180 | St. Louis-St.
Charles-Farmington, MO-IL 476 | | https://maps.google.com/?q=WeldonSpringHeightstown+MO |
| | Weldon Spring city | 2978314 | St. Charles County 29183 | MO | St. Louis, MO-IL 41180 | St. Louis-St.
Charles-Farmington, MO-IL 476 | | https://maps.google.com/?q=WeldonSpringcity+MO |
| | St. Peters city | 2965126 | St. Charles County 29183 | MO | St. Louis, MO-IL 41180 | St. Louis-St.
Charles-Farmington, MO-IL 476 | | https://maps.google.com/?q=St.Peterscity+MO |
| | St. Paul city | 2965108 | St. Charles County 29183 | MO | St. Louis, MO-IL 41180 | St. Louis-St.
Charles-Farmington, MO-IL 476 | | https://maps.google.com/?q=St.Paulcity+MO |
| | St. Charles city | 2964082 | St. Charles County 29183 | MO | St. Louis, MO-IL 41180 | St. Louis-St.
Charles-Farmington, MO-IL 476 | Y | https://maps.google.com/?q=St.Charlescity+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 |
| | 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 |
| | 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 |