- Marengo
- Margaret Fuller Island
- Marietta
- Marigold
- Marilyn's Estates
- Marine
- Marion
- Marion
- Marion Mobile Home Village
- Marissa
- Mark
- Markham
- Markham
- Markham City
- Markus Subdivision
- Marlen Subdivision
- Marley
- Marley
- Marlow
- Maroa
- Marquette
- Marquette Heights
- Marquettes Landing
- Marseilles
- Marshall
- Marshall Landing
- Marston
- Martin Island
- Martin Towhead
- Martinsburg