Pennsylvania Neighborhoods M
- Main Line-Delaware (19)
- Manayunk (116)
- Manchester (9)
- Manheim/Lititz (10)
- Mantua (86)
- Market Square (6)
- Marshall-Shadeland (5)
- Marvintown (6)
- Mayfair (14)
- McKeesport-White Oak (26)
- Mechanicsville (1)
- Mid City Erie (3)
- Midtown Harrisburg (19)
- Midtown Village (25)
- Millbourne (1)
- Millersville/Conestoga/Willow St (4)
- Morningside (12)
- Mount Lebanon (21)
- Mount Washington (33)
- Mt Oliver Boro (4)
- Munhall (10)
- Musser Park (7)
- Mussertown (3)