- Mylo Park
- Mix Run
- Meckesville
- Mertz Town
- Mud Run
- Marengo
- Martha Furnace
- Marysville
- Matternville
- Mount Eagle
- Musellmans Crossing
- Musser
- Malins
- Maple Grove
- Marlboro
- Marshallton
- Martins Corner
- Marydell Farms
- Matthews
- Meadows at Valley Forge
- Meriweather Farms
- Merlin
- Milford Mills
- Mill Lane
- Millers Mobile Home Park
- Moorehall at Valley Forge
- Mortonville
- Mount Vernon
- Maple Grove
- Marianne