- Marrier Estates
- Martin Island
- Martin Lake
- Martin Landing
- Martinson Island
- Marty
- Marysburg
- Marystown
- Matawan
- Matson Island
- Mattson
- Mavie
- Mavis Frazier Trailer Park
- Max
- Mayhew
- Mayville
- McCauleyville
- McComber
- McDonalds Lakeview Terrace
- McDougall Island
- McManus Island
- McNair
- Meadow Brook
- Meadow Mobile Home Park
- Meadow View Manor
- Meadowcrest Estates Mobile Home Park
- Medford Trailer Park
- Melby
- Melrose Mobile Home Park
- Melrude