- Macedonia
- Makemie Park
- Mappsburg
- Marks Island
- Mears Station
- Mearsville
- Messongo
- Metompkin
- Metompkin Islands
- Middlesex
- Middlesex
- Miona
- Morris Island
- Mount Nebo
- Mount Zion
- Mutton Hunk
- Mallard Lake
- Marshall Manor
- McCullough
- Mechunk Acres
- Meriwether Hill
- Midway
- Mill Creek
- Mill Ridge
- Mill Run
- Millington
- Milton
- Milton Heights
- Milton Hills
- Miran Forest