- Minnesota Junction
- Misling Island
- Moon Island
- Middle River
- Moose Junction
- Menomonie Junction
- Maples Mobile Home Park
- Mount Hope Corners
- Marblehead
- Marytown
- Minawa Beach
- Mole Lake
- McCartney
- Millville
- Mount Ida
- Mulligan Island
- Martintown
- Mineral Point
- Monroe Estates
- Manchester
- Middlebury
- Mifflin
- Moscow
- Muscoda Island
- Mattoon
- McFarland
- Mondovi
- Montreal
- Marathon
- Marion