- McLaughlin Corners
- Meadville Junction
- Millers Station
- Mosiertown
- Mount Hope
- Mystic Park
- McCrea
- Middle Spring
- Middlesex
- Montsera
- Mooredale
- Moors Mill
- Mount Allen
- Mount Allen Estates
- Mount Hope
- Mount Rock
- Mount View
- Mount Zion
- Mount Zion
- Mountain View Estates
- Myerstown
- Manada Gap
- Manadahill
- Mann
- Manor Acres
- Marene Village
- Matterstown
- McCormicks Island
- Meade Heights
- Mountain Dale