- Mann
- Mabel
- Mable Hill
- Mac
- Macdonaldton
- Macedonia
- Macedonia
- Mackey Ford
- Mackeyville
- Macungie
- Maddensville
- Madera
- Madison
- Madison Ridge
- Madisonburg
- Madisonville
- Madley
- Magee
- Magill Heights
- Magnolia Hill
- Mahaffey
- Mahanoy City
- Mahanoy Plane
- Mahantango
- Mahoning
- Mahoning
- Mahoning Furnace
- Mahoningtown
- Maiden Creek
- Maiden Creek Estates