- Moenville
- Miller Dale Colony
- Millbrook Colony
- Maxwell Colony
- Macs Corner
- Manchester
- Maitland
- Maurice
- Merritt
- Moe
- Medicine Island (historical)
- Madra
- Marlow
- Marty
- McLaughlin
- Mellette
- Menno
- Milbank
- Mission Hill
- Mitchell
- Mobridge
- Martindale Addition
- McCroskey Addition
- Meadow View Addition
- Midway
- Morefield
- Mawl Springs
- McGee
- Melcore Acres Subdivision
- Moon