Towns
| State | City/Town | Town Title |
|---|---|---|
| Pennsylvania | Mills | Mills, PA |
| Pennsylvania | Millsboro | Millsboro, PA |
| Pennsylvania | Millville | Millville, PA |
| Pennsylvania | Milnesville | Milnesville, PA |
| Pennsylvania | Milroy | Milroy, PA |
| Pennsylvania | Milton | Milton, PA |
| Pennsylvania | Mineral Point | Mineral Point, PA |
| Pennsylvania | Mineral Springs | Mineral Springs, PA |
| Pennsylvania | Minersville | Minersville, PA |
| Pennsylvania | Mingoville | Mingoville, PA |
| Pennsylvania | Minisink Hills | Minisink Hills, PA |
| Pennsylvania | Modena | Modena, PA |
| Pennsylvania | Mohnton | Mohnton, PA |
| Pennsylvania | Mohrsville | Mohrsville, PA |
| Pennsylvania | Monaca | Monaca, PA |
| Pennsylvania | Monessen | Monessen, PA |
| Pennsylvania | Monocacy Station | Monocacy Station, PA |
| Pennsylvania | Monongahela | Monongahela, PA |
| Pennsylvania | Monroeton | Monroeton, PA |
| Pennsylvania | Monroeville | Monroeville, PA |
| Pennsylvania | Mont Alto | Mont Alto, PA |
| Pennsylvania | Mont Clare | Mont Clare, PA |
| Pennsylvania | Montandon | Montandon, PA |
| Pennsylvania | Montgomery | Montgomery, PA |
| Pennsylvania | Montgomeryville | Montgomeryville, PA |