| Mount Carroll, IL (City) |
| Mount Carroll Township, IL (Township) |
| Mount Chase, ME (Town) |
| Mount Clare, IL (Village) |
| Mount Clemens, MI (City) |
| Mount Cory, OH (Village) |
| Mount Crawford, VA (Town) |
| Mount Crested Butte, CO (Town) |
| Mount Croghan, SC (Town) |
| Mount Desert, ME (Town) |
| Mount Dora , FL (City) |
| Mount Eaton, OH (Village) |
| Mount Enterprise, TX (City) |
| Mount Ephraim, NJ (Borough) |
| Mount Erie, IL (Village) |
