Towns
| State | City/Town | Town Title |
|---|---|---|
| Pennsylvania | Middleport | Middleport, PA |
| Pennsylvania | Middletown | Middletown, PA |
| Pennsylvania | Midland | Midland, PA |
| Pennsylvania | Midway | Midway, PA |
| Pennsylvania | Mifflin | Mifflin, PA |
| Pennsylvania | Mifflinburg | Mifflinburg, PA |
| Pennsylvania | Mifflintown | Mifflintown, PA |
| Pennsylvania | Mifflinville | Mifflinville, PA |
| Pennsylvania | Milan | Milan, PA |
| Pennsylvania | Milanville | Milanville, PA |
| Pennsylvania | Mildred | Mildred, PA |
| Pennsylvania | Milesburg | Milesburg, PA |
| Pennsylvania | Milford | Milford, PA |
| Pennsylvania | Milford Square | Milford Square, PA |
| Pennsylvania | Mill Creek | Mill Creek, PA |
| Pennsylvania | Mill Hall | Mill Hall, PA |
| Pennsylvania | Mill Run | Mill Run, PA |
| Pennsylvania | Mill Village | Mill Village, PA |
| Pennsylvania | Millersburg | Millersburg, PA |
| Pennsylvania | Millerstown | Millerstown, PA |
| Pennsylvania | Millersville | Millersville, PA |
| Pennsylvania | Millerton | Millerton, PA |
| Pennsylvania | Millheim | Millheim, PA |
| Pennsylvania | Millmont | Millmont, PA |
| Pennsylvania | Millrift | Millrift, PA |