- M Bar J Ranch Mobile Home Park
- Ma and Pas Mobile Home Park
- Mabana
- Mabton
- Machias
- Machias Mobile Manor
- Mack
- Madrona Beach
- Madrona Beach
- Madrona Heights
- Madrona Mobile Home Park
- Madrona Ridge Mobile Home Park
- Madson
- Mae
- Magallon
- Magnolia Beach
- Magnolia Bluff
- Magnolia Heights
- Majestic Mobile Manor
- Malaga
- Malden
- Malo
- Malone
- Malone-Porter
- Malott
- Maltby
- Manchester
- Manitar
- Manito
- Manitou