- Marysville
- Muren
- Mauzy
- Moscow
- Maple Lane
- Miami Trails Addition
- Midway Corners
- Marian Manor
- Marine Drive Mobile Home Park
- McCool
- Meadowbrook
- Meadowview Mobile Home Park
- Morgan Park
- Mackeys Island
- Marrs Center
- Marshfield
- Marietta
- Marion
- Meiks
- Meltzer
- Middletown
- Morven
- Manhattan
- Morton
- Mount Meridian
- Maxville
- Midway
- Monte Cassino Shrine