| Marshfield Town, WI (Town) |
| Marshville, NC (Town) |
| Marsing, ID (City) |
| Marston, MO (City) |
| Marstonmoor, ND (Township) |
| Mart, TX (City) |
| Martell Town, WI (Town) |
| Martelle, IA (City) |
| Martensdale, IA (City) |
| Martha, OK (Town) |
| Marthasville, MO (City) |
| Martic Township, PA (Township) |
| Martin, MI (Village) |
| Martin, SD (City) |
| Martin, SD (Township) |
