| | Columbia city (part) | 1715833 | Monroe County 17133 | IL | St. Louis, MO-IL 41180 | St. Louis-St.
Charles-Farmington, MO-IL 476 | | https://maps.google.com/?q=Columbiacity+IL |
| | Fults village | 1728170 | Monroe County 17133 | IL | St. Louis, MO-IL 41180 | St. Louis-St.
Charles-Farmington, MO-IL 476 | | https://maps.google.com/?q=Fultsvillage+IL |
| | Hecker village (part) | 1733877 | Monroe County 17133 | IL | St. Louis, MO-IL 41180 | St. Louis-St.
Charles-Farmington, MO-IL 476 | | https://maps.google.com/?q=Heckervillage+IL |
| | Maeystown village | 1746058 | Monroe County 17133 | IL | St. Louis, MO-IL 41180 | St. Louis-St.
Charles-Farmington, MO-IL 476 | | https://maps.google.com/?q=Maeystownvillage+IL |
| | Valmeyer village | 1777265 | Monroe County 17133 | IL | St. Louis, MO-IL 41180 | St. Louis-St.
Charles-Farmington, MO-IL 476 | | https://maps.google.com/?q=Valmeyervillage+IL |
| | Waterloo city | 1779150 | Monroe County 17133 | IL | St. Louis, MO-IL 41180 | St. Louis-St.
Charles-Farmington, MO-IL 476 | | https://maps.google.com/?q=Waterloocity+IL |