Towns
| State | City/Town | Town Title |
|---|---|---|
| Pennsylvania | Mcdonald | Mcdonald, PA |
| Pennsylvania | Mckean | Mckean, PA |
| Pennsylvania | Mckees Rocks | Mckees Rocks, PA |
| Pennsylvania | Mckeesport | Mckeesport, PA |
| Pennsylvania | Mcsherrystown | Mcsherrystown, PA |
| Pennsylvania | Mcveytown | Mcveytown, PA |
| Pennsylvania | Meadow Lands | Meadow Lands, PA |
| Pennsylvania | Meadville | Meadville, PA |
| Pennsylvania | Mechanicsburg | Mechanicsburg, PA |
| Pennsylvania | Mechanicsville | Mechanicsville, PA |
| Pennsylvania | Media | Media, PA |
| Pennsylvania | Mehoopany | Mehoopany, PA |
| Pennsylvania | Melcroft | Melcroft, PA |
| Pennsylvania | Mendenhall | Mendenhall, PA |
| Pennsylvania | Mentcle | Mentcle, PA |
| Pennsylvania | Mercer | Mercer, PA |
| Pennsylvania | Mercersburg | Mercersburg, PA |
| Pennsylvania | Merion Station | Merion Station, PA |
| Pennsylvania | Merrittstown | Merrittstown, PA |
| Pennsylvania | Mertztown | Mertztown, PA |
| Pennsylvania | Meshoppen | Meshoppen, PA |
| Pennsylvania | Mexico | Mexico, PA |
| Pennsylvania | Meyersdale | Meyersdale, PA |
| Pennsylvania | Middleburg | Middleburg, PA |
| Pennsylvania | Middlebury Center | Middlebury Center, PA |