- Mitchell Mill
- Mitchellville
- Mixon
- Moark
- Modoc
- Modoc Landing
- Mohawk
- Moko
- Monarch
- Monette
- Monica
- Monkey Run
- Monnie Springs
- Monroe
- Montana
- Monte Ne
- Monte Ne Shores
- Monterey
- Montezuma Towhead
- Montgomery Island
- Montgomery Towhead
- Monticello
- Montongo
- Montreal
- Montrose
- Moore
- Moorefield
- Moores Island
- Moores Mill
- Moran