| Name | What | Region | Country | Lat | Long | Elev ft. | Pop est |
|---|---|---|---|---|---|---|---|
| Meade Heights | city | Pennsylvania | United States | 40.21 | -76.75 | 351 | |
| Meadetown | city | Pennsylvania | United States | 39.82 | -76.52 | 830 | |
| Meadow Gap | city | Pennsylvania | United States | 40.16 | -77.93 | 859 | |
| Meadow Lands | city | Pennsylvania | United States | 40.22 | -80.22 | 1249 | |
| Meadow Lane Farms | city | Pennsylvania | United States | 40.26 | -75.22 | 396 | |
| Meadow View Estates | city | Pennsylvania | United States | 40.18 | -75.19 | 298 | |
| Meadow Wick | city | Pennsylvania | United States | 40.15 | -75.30 | 295 | |
| Meadowbrook | city | Pennsylvania | United States | 39.87 | -79.72 | 1099 | |
| Meadowbrook | city | Pennsylvania | United States | 40.11 | -75.08 | 154 | |
| Meadowbrook Mobile Home Park | city | Pennsylvania | United States | 40.20 | -76.90 | 830 | |
| Meadowcreek Estates | city | Pennsylvania | United States | 40.18 | -75.23 | 282 | |
| Meadowdale | city | Pennsylvania | United States | 40.13 | -79.11 | 1899 | |
| Meadowlands Manor | city | Pennsylvania | United States | 40.17 | -75.28 | 298 | |
| Meadowood | city | Pennsylvania | United States | 40.84 | -79.89 | 1200 | |
| Meadows at Lower Gwynedd | city | Pennsylvania | United States | 40.15 | -75.18 | 213 | |
| Meadows at Valley Forge | city | Pennsylvania | United States | 40.12 | -75.48 | 131 | |
| Meadowview | city | Pennsylvania | United States | 40.85 | -76.59 | 830 | |
| Meadville | city | Pennsylvania | United States | 40.07 | -76.00 | 830 | |
| Meadville | city | Pennsylvania | United States | 41.64 | -80.15 | 1148 | |
| Meadville Junction | city | Pennsylvania | United States | 41.64 | -80.35 | 1099 | |
| Mechanic Grove | city | Pennsylvania | United States | 39.85 | -76.16 | 830 | |
| Mechanics Valley | city | Pennsylvania | United States | 40.32 | -75.08 | 298 | |
| Mechanicsburg | city | Pennsylvania | United States | 40.56 | -80.40 | 1164 | |
| Mechanicsburg | city | Pennsylvania | United States | 40.21 | -77.01 | 830 | |
| Mechanicsville | city | Pennsylvania | United States | 40.11 | -74.97 | 98 | |
| Mechanicsville | city | Pennsylvania | United States | 40.12 | -76.38 | 396 | |
| Mechanicsville | city | Pennsylvania | United States | 40.65 | -75.54 | 403 | |
| Mechanicsville | city | Pennsylvania | United States | 40.69 | -76.19 | 830 | |
| Mechanicsville | city | Pennsylvania | United States | 40.97 | -76.59 | 830 | |
| Mechanicsville | city | Pennsylvania | United States | 41.17 | -79.33 | 1669 | |
| Mechanicsville | city | Pennsylvania | United States | 40.92 | -75.35 | 908 | |
| Mechanicsville | city | Pennsylvania | United States | 40.06 | -75.31 | 396 | |
| Mechanicsville | city | Pennsylvania | United States | 40.60 | -77.74 | 830 | |
| Mechanicsville | city | Pennsylvania | United States | 40.34 | -75.07 | 367 | |
| Meckesville | city | Pennsylvania | United States | 41.00 | -75.55 | 1817 | |
| Mecks Corner | city | Pennsylvania | United States | 40.39 | -77.14 | 830 | |
| Meckville | city | Pennsylvania | United States | 40.47 | -76.38 | 830 | |
| Media | city | Pennsylvania | United States | 39.92 | -75.39 | 196 | |
| Medix Run | city | Pennsylvania | United States | 41.29 | -78.40 | 1099 | |
| Meeker | city | Pennsylvania | United States | 41.31 | -76.07 | 1164 | |
| Meetinghouse Village | city | Pennsylvania | United States | 40.20 | -75.13 | 298 | |
| Meharg | city | Pennsylvania | United States | 40.79 | -79.90 | 1197 | |
| Mehoopany | city | Pennsylvania | United States | 41.56 | -76.06 | 997 | |
| Meiser Station | city | Pennsylvania | United States | 40.80 | -76.99 | 830 | |
| Meisertown | city | Pennsylvania | United States | 41.08 | -75.27 | 1099 | |
| Meiserville | city | Pennsylvania | United States | 40.67 | -76.97 | 830 | |
| Melchris Wood | city | Pennsylvania | United States | 41.38 | -75.16 | 1669 | |
| Melcroft | city | Pennsylvania | United States | 40.05 | -79.39 | 1692 | |
| Mellingertown | city | Pennsylvania | United States | 40.15 | -79.52 | 1099 | |
| Mellotts Mill | city | Pennsylvania | United States | 40.02 | -78.04 | 898 | |
| Melrose | city | Pennsylvania | United States | 39.99 | -79.96 | 902 | |
| Melrose | city | Pennsylvania | United States | 41.93 | -75.50 | 1213 | |
| Melrose Park | city | Pennsylvania | United States | 40.06 | -75.13 | 200 | |
| Melrose Place | city | Pennsylvania | United States | 40.44 | -75.86 | 830 | |
| Memel Farms | city | Pennsylvania | United States | 39.92 | -75.54 | 354 | |
| Memphord Estates | city | Pennsylvania | United States | 40.14 | -77.00 | 830 | |
| Mench | city | Pennsylvania | United States | 39.97 | -78.32 | 1200 | |
| Mendelssohn | city | Pennsylvania | United States | 40.30 | -79.89 | 830 | |
| Mendenhall | city | Pennsylvania | United States | 39.85 | -75.64 | 351 | |
| Mendon | city | Pennsylvania | United States | 40.18 | -79.68 | 1102 | |
| Mengel | city | Pennsylvania | United States | 40.57 | -75.92 | 830 | |
| Menges Mill | city | Pennsylvania | United States | 39.72 | -77.10 | 830 | |
| Menges Mills | city | Pennsylvania | United States | 39.86 | -76.89 | 830 | |
| Menno | city | Pennsylvania | United States | 40.58 | -77.77 | 898 | |
| Mentcle | city | Pennsylvania | United States | 40.64 | -78.88 | 1916 | |
| Mentzer | city | Pennsylvania | United States | 40.13 | -77.88 | 1095 | |
| Mercer | city | Pennsylvania | United States | 41.23 | -80.24 | 1200 | |
| Mercer Hill Village | city | Pennsylvania | United States | 40.15 | -75.23 | 200 | |
| Mercersburg | city | Pennsylvania | United States | 39.83 | -77.90 | 830 | |
| Mercersburg Junction | city | Pennsylvania | United States | 39.86 | -77.89 | 830 | |
| Mercur | city | Pennsylvania | United States | 41.80 | -76.33 | 1669 | |
| Meredith | city | Pennsylvania | United States | 40.80 | -79.29 | 1141 | |
| Meredith | city | Pennsylvania | United States | 41.09 | -78.95 | 1669 | |
| Meriahnna | city | Pennsylvania | United States | 39.85 | -75.56 | 344 | |
| Meridian | city | Pennsylvania | United States | 40.85 | -79.96 | 1210 | |
| Merion | city | Pennsylvania | United States | 40.00 | -75.25 | 239 | |
| Merion Gardens | city | Pennsylvania | United States | 39.99 | -75.25 | 200 | |
| Merion Hills | city | Pennsylvania | United States | 40.08 | -75.35 | 206 | |
| Merion Park | city | Pennsylvania | United States | 39.99 | -75.25 | 200 | |
| Merion View | city | Pennsylvania | United States | 40.10 | -75.36 | 200 | |
| Meriweather Farms | city | Pennsylvania | United States | 39.98 | -75.56 | 400 | |
| Merlin | city | Pennsylvania | United States | 40.10 | -75.58 | 298 | |
| Mermaid | city | Pennsylvania | United States | 40.08 | -75.18 | 308 | |
| Mermaid Estates | city | Pennsylvania | United States | 40.14 | -75.29 | 291 | |
| Merrian | city | Pennsylvania | United States | 40.78 | -76.41 | 1669 | |
| Merrill | city | Pennsylvania | United States | 40.67 | -80.36 | 830 | |
| Merrittstown | city | Pennsylvania | United States | 39.97 | -79.88 | 1082 | |
| Merryall | city | Pennsylvania | United States | 41.70 | -76.23 | 830 | |
| Merrybrook | city | Pennsylvania | United States | 40.21 | -75.26 | 396 | |
| Mertz Town | city | Pennsylvania | United States | 40.82 | -75.76 | 830 | |
| Mertztown | city | Pennsylvania | United States | 40.51 | -75.67 | 830 | |
| Merwinsburg | city | Pennsylvania | United States | 40.97 | -75.47 | 944 | |
| Meshoppen | city | Pennsylvania | United States | 41.61 | -76.05 | 830 | |
| Messmore | city | Pennsylvania | United States | 39.88 | -79.84 | 1197 | |
| Metal | city | Pennsylvania | United States | 40.01 | -77.88 | 862 | |
| Metamora Station | city | Pennsylvania | United States | 40.64 | -75.53 | 400 | |
| Metcalf | city | Pennsylvania | United States | 40.62 | -79.69 | 1102 | |
| Metzler | city | Pennsylvania | United States | 39.92 | -79.28 | 2017 | |
| Mews at Blue Bell | city | Pennsylvania | United States | 40.15 | -75.30 | 298 | |
| Mews at Valley Forge | city | Pennsylvania | United States | 40.13 | -75.40 | 98 | |
| Mews at Wickford Commons | city | Pennsylvania | United States | 40.36 | -75.30 | 396 | |
| Mexico | city | Pennsylvania | United States | 40.54 | -77.35 | 830 | |
| Mexico | city | Pennsylvania | United States | 41.02 | -76.75 | 830 | |
| Mexico (historical) | city | Pennsylvania | United States | 40.26 | -75.81 | 351 | |
| Meyersdale | city | Pennsylvania | United States | 39.81 | -79.02 | 1998 | |
| Meyersville | city | Pennsylvania | United States | 40.65 | -75.55 | 830 |