- Milburn
- Milford
- Millard
- Millard Mobile Home Park
- Miller
- Millerton
- Milligan
- Millis Beach
- Mills
- Minatare
- Minden
- Minersville
- Mintle
- Mitchell
- Mobile Manor
- Mobile Manor Trailer Park
- Mohler
- Monowi
- Monroe
- Monterey
- Montrose
- Moomaw Corner
- Moorefield
- Morgan Island
- Mormon Island
- Morrill
- Morrill Mobile Home Estates
- Morse Bluff
- Mount Clare
- Mount Vernon