- Marengo
- Marengo
- Marietta
- Marietta-Alderwood
- Marietta Mobile Home Court
- Marine Drive
- Mariner Village Mobile Home Park
- Marketown
- Markham
- Marks Mobile Home Park
- Marlin
- Marmac
- Marrowstone
- Marrowstone Island
- Marsh Island
- Marsh Island
- Marshall
- Martell Mobile Manor
- Martha Lake
- Martin
- Martin Island
- Martindale
- Maryhill
- Marys Corner
- Marysville
- Mason City
- Mathews Corner
- Matia Island
- Matlock
- Mats Mats