| Name | What | Region | Country | Lat | Long | Elev Ft. | Pop Est |
|---|
| Meade Heights | city | Pennsylvania | United States | 40.20667 | -76.75444 | 341 | 31221 |
| Meadetown | city | Pennsylvania | United States | 39.81639 | -76.52028 | 695 | 5836 |
| Meadow Gap | city | Pennsylvania | United States | 40.16 | -77.93111 | 859 | 1672 |
| Meadow Lands | city | Pennsylvania | United States | 40.21917 | -80.22083 | 1249 | 35045 |
| Meadowbrook | city | Pennsylvania | United States | 39.87278 | -79.71583 | 1099 | 28536 |
| Meadowbrook | city | Pennsylvania | United States | 40.1125 | -75.07861 | 154 | 209949 |
| Meadowbrook Mobile Home Park | city | Pennsylvania | United States | 40.19611 | -76.90167 | 590 | 45818 |
| Meadowdale | city | Pennsylvania | United States | 40.12583 | -79.11333 | 1899 | 3642 |
| Meadowood | city | Pennsylvania | United States | 40.84194 | -79.89417 | 1200 | 39855 |
| Meadows at Lower Gwynedd | city | Pennsylvania | United States | 40.15 | -75.18333 | 213 | 106341 |
| Meadowview | city | Pennsylvania | United States | 40.84694 | -76.59222 | 600 | 5870 |
| Meadville | city | Pennsylvania | United States | 41.64139 | -80.15167 | 1148 | 22493 |
| Meadville | city | Pennsylvania | United States | 40.06917 | -75.99583 | 669 | 9980 |
| Meadville Junction | city | Pennsylvania | United States | 41.63889 | -80.34528 | 1099 | 4024 |
| Mechanic Grove | city | Pennsylvania | United States | 39.84861 | -76.15889 | 600 | 6886 |
| Mechanics Valley | city | Pennsylvania | United States | 40.32 | -75.08333 | 298 | 19321 |
| Mechanicsburg | city | Pennsylvania | United States | 40.56167 | -80.40306 | 1164 | 5511 |
| Mechanicsburg | city | Pennsylvania | United States | 40.21417 | -77.00889 | 442 | 35814 |
| Mechanicsville | city | Pennsylvania | United States | 41.16833 | -79.33417 | 1522 | 7134 |
| Mechanicsville | city | Pennsylvania | United States | 40.60167 | -77.74 | 800 | 3873 |
| Mechanicsville | city | Pennsylvania | United States | 40.96639 | -76.58694 | 600 | 12038 |
| Mechanicsville | city | Pennsylvania | United States | 40.1175 | -76.37972 | 396 | 37137 |
| Mechanicsville | city | Pennsylvania | United States | 40.68944 | -76.18611 | 731 | 35171 |
| Mechanicsville | city | Pennsylvania | United States | 40.65 | -75.53806 | 403 | 96787 |
| Mechanicsville | city | Pennsylvania | United States | 40.9175 | -75.35417 | 1059 | 10260 |
| Mechanicsville | city | Pennsylvania | United States | 40.06056 | -75.31222 | 396 | 107077 |
| Mechanicsville | city | Pennsylvania | United States | 40.34389 | -75.075 | 367 | 14972 |
| Mechanicsville | city | Pennsylvania | United States | 40.10944 | -74.96556 | 98 | 185863 |
| Mechesneytown | city | Pennsylvania | United States | 40.31472 | -79.35889 | 1148 | 23651 |
| Meckesville | city | Pennsylvania | United States | 40.99972 | -75.55222 | 1817 | 3648 |
| Mecks Corner | city | Pennsylvania | United States | 40.38611 | -77.14306 | 593 | 5507 |
| Meckville | city | Pennsylvania | United States | 40.47139 | -76.38139 | 498 | 4833 |
| Media | city | Pennsylvania | United States | 39.91667 | -75.38806 | 196 | 86990 |
| Medix Run | city | Pennsylvania | United States | 41.29 | -78.3975 | 1099 | 682 |
| Meeker | city | Pennsylvania | United States | 41.31361 | -76.06611 | 1164 | 6650 |
| Meharg | city | Pennsylvania | United States | 40.78611 | -79.89889 | 1197 | 11567 |
| Mehoopany | city | Pennsylvania | United States | 41.56333 | -76.06083 | 997 | 1952 |
| Meiser Station | city | Pennsylvania | United States | 40.80083 | -76.98917 | 564 | 5467 |
| Meisertown | city | Pennsylvania | United States | 41.08056 | -75.26889 | 1099 | 9370 |
| Meiserville | city | Pennsylvania | United States | 40.66917 | -76.9725 | 498 | 3238 |
| Melchris Wood | city | Pennsylvania | United States | 41.37667 | -75.15639 | 1499 | 1896 |
| Melcroft | city | Pennsylvania | United States | 40.05194 | -79.38944 | 1692 | 2940 |
| Mellingertown | city | Pennsylvania | United States | 40.14528 | -79.51833 | 1099 | 15373 |
| Mellotts Mill | city | Pennsylvania | United States | 40.01722 | -78.03861 | 898 | 1359 |
| Melrose | city | Pennsylvania | United States | 39.99194 | -79.95639 | 902 | 11675 |
| Melrose | city | Pennsylvania | United States | 41.92972 | -75.50417 | 1204 | 2650 |
| Melrose Park | city | Pennsylvania | United States | 40.06167 | -75.13222 | 200 | 433398 |
| Memphord Estates | city | Pennsylvania | United States | 40.13722 | -76.99778 | 495 | 23270 |
| Mench | city | Pennsylvania | United States | 39.97333 | -78.32472 | 1200 | 3768 |
| Mendelssohn | city | Pennsylvania | United States | 40.30417 | -79.89306 | 800 | 69805 |
| Mendenhall | city | Pennsylvania | United States | 39.85389 | -75.64167 | 351 | 18139 |
| Mendon | city | Pennsylvania | United States | 40.17944 | -79.68389 | 1102 | 8375 |
| Menges Mill | city | Pennsylvania | United States | 39.72139 | -77.10333 | 577 | 9723 |
| Menges Mills | city | Pennsylvania | United States | 39.86083 | -76.89528 | 515 | 12057 |
| Menno | city | Pennsylvania | United States | 40.57833 | -77.77028 | 898 | 3600 |
| Mentcle | city | Pennsylvania | United States | 40.63722 | -78.8825 | 1916 | 3194 |
| Mentzer | city | Pennsylvania | United States | 40.12528 | -77.88528 | 1095 | 1442 |
| Mercer | city | Pennsylvania | United States | 41.22694 | -80.24 | 1200 | 5062 |
| Mercersburg | city | Pennsylvania | United States | 39.82778 | -77.90361 | 600 | 3185 |
| Mercersburg Junction | city | Pennsylvania | United States | 39.85722 | -77.89056 | 574 | 4120 |
| Mercur | city | Pennsylvania | United States | 41.8025 | -76.32806 | 1381 | 1904 |
| Meredith | city | Pennsylvania | United States | 40.79667 | -79.29333 | 1141 | 3120 |
| Meredith | city | Pennsylvania | United States | 41.08917 | -78.95056 | 1453 | 5599 |
| Meridian | city | Pennsylvania | United States | 40.84833 | -79.96222 | 1210 | 15791 |
| Merion Hills | city | Pennsylvania | United States | 40.075 | -75.35444 | 360 | 111771 |
| Merion Park | city | Pennsylvania | United States | 39.99333 | -75.25139 | 200 | 391886 |
| Merlin | city | Pennsylvania | United States | 40.10306 | -75.57972 | 298 | 28906 |
| Mermaid | city | Pennsylvania | United States | 40.07889 | -75.17861 | 308 | 338015 |
| Merrian | city | Pennsylvania | United States | 40.77833 | -76.40944 | 1299 | 15286 |
| Merrill | city | Pennsylvania | United States | 40.66639 | -80.35528 | 698 | 17791 |
| Merrittstown | city | Pennsylvania | United States | 39.97278 | -79.87778 | 1082 | 14025 |
| Merryall | city | Pennsylvania | United States | 41.69861 | -76.23083 | 731 | 2059 |
| Mertz Town | city | Pennsylvania | United States | 40.82 | -75.75778 | 508 | 10239 |
| Mertztown | city | Pennsylvania | United States | 40.50583 | -75.66583 | 498 | 14770 |
| Merwinsburg | city | Pennsylvania | United States | 40.96611 | -75.46778 | 944 | 7089 |
| Meshoppen | city | Pennsylvania | United States | 41.61417 | -76.04694 | 698 | 2012 |
| Messmore | city | Pennsylvania | United States | 39.87833 | -79.845 | 1197 | 9773 |
| Metal | city | Pennsylvania | United States | 40.01389 | -77.87917 | 698 | 2051 |
| Metamora Station | city | Pennsylvania | United States | 40.6375 | -75.53167 | 426 | 96787 |
| Metcalf | city | Pennsylvania | United States | 40.62306 | -79.69083 | 1102 | 33754 |
| Metzler | city | Pennsylvania | United States | 39.92056 | -79.27917 | 1797 | 1360 |
| Mexico | city | Pennsylvania | United States | 40.5375 | -77.35361 | 410 | 2482 |
| Mexico | city | Pennsylvania | United States | 41.02111 | -76.74861 | 498 | 3676 |
| Meyersdale | city | Pennsylvania | United States | 39.81361 | -79.025 | 1998 | 5194 |
| Meyersville | city | Pennsylvania | United States | 40.64639 | -75.54861 | 452 | 38953 |
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