| Name | What | Region | Country | Lat | Long | Elev Ft. | Pop Est |
|---|
| Mc Gregor | city | Pennsylvania | United States | 40.93806 | -79.22056 | 1597 | 1914 |
| McAdams | city | Pennsylvania | United States | 40.38611 | -80.26806 | 1099 | 9974 |
| McAdoo | city | Pennsylvania | United States | 40.91 | -75.99167 | 1699 | 17287 |
| McAdoo Heights | city | Pennsylvania | United States | 40.89167 | -75.99528 | 1601 | 17287 |
| McAlevys Fort | city | Pennsylvania | United States | 40.63972 | -77.83167 | 797 | 1041 |
| McAlisters Crossroads | city | Pennsylvania | United States | 40.51556 | -80.26833 | 1197 | 20481 |
| McAlisterville | city | Pennsylvania | United States | 40.63611 | -77.275 | 688 | 3643 |
| McBride | city | Pennsylvania | United States | 40.7975 | -79.92472 | 1036 | 27518 |
| McCalmont | city | Pennsylvania | United States | 40.81944 | -79.94472 | 1197 | 27518 |
| McCance | city | Pennsylvania | United States | 40.27083 | -79.2975 | 1332 | 10323 |
| McCarroll Corner | city | Pennsylvania | United States | 41.46611 | -76.25611 | 2027 | 951 |
| McCartney | city | Pennsylvania | United States | 40.82833 | -78.51 | 1597 | 2449 |
| McCartys Corner | city | Pennsylvania | United States | 41.29167 | -74.86333 | 912 | 4618 |
| McCaslin | city | Pennsylvania | United States | 41.01306 | -80.25694 | 1200 | 14398 |
| McCauley | city | Pennsylvania | United States | 41.36778 | -79.43806 | 1591 | 2173 |
| McCauley | city | Pennsylvania | United States | 40.95278 | -76.335 | 1135 | 2595 |
| McClarran | city | Pennsylvania | United States | 40.325 | -79.46833 | 1223 | 23325 |
| McCleary | city | Pennsylvania | United States | 40.60889 | -80.40056 | 1112 | 7800 |
| McClellan Heights | city | Pennsylvania | United States | 39.94694 | -76.73306 | 426 | 85457 |
| McClellandtown | city | Pennsylvania | United States | 39.88694 | -79.86694 | 1033 | 9773 |
| McClintock | city | Pennsylvania | United States | 41.45611 | -79.68861 | 997 | 14528 |
| McClure | city | Pennsylvania | United States | 40.10389 | -79.55417 | 1164 | 18768 |
| McClure | city | Pennsylvania | United States | 40.70694 | -77.31472 | 725 | 3204 |
| McConnells Mill | city | Pennsylvania | United States | 40.95278 | -80.17028 | 1299 | 4963 |
| McConnells Mills | city | Pennsylvania | United States | 40.2525 | -80.24917 | 1190 | 25097 |
| McConnellsburg | city | Pennsylvania | United States | 39.9325 | -77.99917 | 908 | 3102 |
| McConnellstown | city | Pennsylvania | United States | 40.4525 | -78.08194 | 698 | 3872 |
| McCormick | city | Pennsylvania | United States | 40.83583 | -79.10917 | 1391 | 2322 |
| McCoys Corners | city | Pennsylvania | United States | 41.12694 | -80.09667 | 1227 | 12845 |
| McCoysville | city | Pennsylvania | United States | 40.45306 | -77.56806 | 649 | 1533 |
| McCoytown | city | Pennsylvania | United States | 41.1425 | -80.05278 | 1269 | 12715 |
| McCracken | city | Pennsylvania | United States | 39.85361 | -80.47611 | 1223 | 1193 |
| McCracken | city | Pennsylvania | United States | 40.07 | -80.23833 | 1197 | 3549 |
| McCrays | city | Pennsylvania | United States | 41.49056 | -79.095 | 1797 | 433 |
| McCrea | city | Pennsylvania | United States | 40.24417 | -77.44361 | 600 | 3996 |
| McCrea Furnace | city | Pennsylvania | United States | 40.92611 | -79.29111 | 1043 | 1972 |
| McCullochs Mills | city | Pennsylvania | United States | 40.42361 | -77.58639 | 606 | 1627 |
| McCullough | city | Pennsylvania | United States | 40.36444 | -79.63889 | 1053 | 38316 |
| McDermott | city | Pennsylvania | United States | 39.74889 | -76.41833 | 547 | 5926 |
| McDonald | city | Pennsylvania | United States | 40.37083 | -80.235 | 1253 | 16331 |
| McDonald Heights | city | Pennsylvania | United States | 39.92806 | -76.7025 | 583 | 78641 |
| McDonaldtown subdivision | city | Pennsylvania | United States | 40.69722 | -80.26944 | 830 | 49672 |
| McElhattan | city | Pennsylvania | United States | 41.15972 | -77.36167 | 620 | 5778 |
| McEwensville | city | Pennsylvania | United States | 41.07278 | -76.81806 | 574 | 8427 |
| McFann | city | Pennsylvania | United States | 40.72694 | -79.94222 | 1099 | 11399 |
| McGarey | city | Pennsylvania | United States | 41.08194 | -79.11667 | 1568 | 1890 |
| McGees Mills | city | Pennsylvania | United States | 40.88167 | -78.76278 | 1295 | 1240 |
| McGillstown | city | Pennsylvania | United States | 40.38861 | -76.52528 | 400 | 9104 |
| McGovern | city | Pennsylvania | United States | 40.22889 | -80.21667 | 997 | 35045 |
| McGovernsville | city | Pennsylvania | United States | 40.06917 | -76.3575 | 318 | 90529 |
| McGrann | city | Pennsylvania | United States | 40.78139 | -79.52167 | 800 | 14601 |
| McHaddon | city | Pennsylvania | United States | 40.78861 | -79.59361 | 1253 | 5451 |
| McIlhaney | city | Pennsylvania | United States | 40.92194 | -75.35972 | 816 | 10260 |
| McIntyre | city | Pennsylvania | United States | 40.56972 | -79.29583 | 1128 | 2870 |
| McKeages Crossing | city | Pennsylvania | United States | 40.72333 | -78.81556 | 1459 | 3305 |
| McKean | city | Pennsylvania | United States | 41.81833 | -78.55778 | 2099 | 1489 |
| McKeansburg | city | Pennsylvania | United States | 40.67833 | -76.02389 | 718 | 4019 |
| McKee | city | Pennsylvania | United States | 40.35972 | -78.4175 | 1279 | 9971 |
| McKee | city | Pennsylvania | United States | 40.4275 | -77.22139 | 800 | 3950 |
| McKees Half Falls | city | Pennsylvania | United States | 40.66139 | -76.91833 | 400 | 3427 |
| McKees Rocks | city | Pennsylvania | United States | 40.46556 | -80.06583 | 770 | 150949 |
| McKeesport | city | Pennsylvania | United States | 40.34778 | -79.86444 | 810 | 123173 |
| McKimm | city | Pennsylvania | United States | 40.83472 | -80.25806 | 898 | 19668 |
| McKinley | city | Pennsylvania | United States | 41.60333 | -78.85528 | 1984 | 1392 |
| McKinley | city | Pennsylvania | United States | 40.08472 | -75.11722 | 200 | 229790 |
| McKinley Hill | city | Pennsylvania | United States | 39.73056 | -79.90111 | 997 | 7253 |
| McKinney | city | Pennsylvania | United States | 40.15194 | -77.61389 | 695 | 3466 |
| McKnight | city | Pennsylvania | United States | 40.555 | -80.03667 | 1197 | 81743 |
| McKnightstown | city | Pennsylvania | United States | 39.87056 | -77.32583 | 600 | 4457 |
| McKnightstown Station | city | Pennsylvania | United States | 39.85694 | -77.32472 | 587 | 4457 |
| McLallen Corners | city | Pennsylvania | United States | 41.87972 | -80.04944 | 1236 | 6608 |
| McLane | city | Pennsylvania | United States | 41.93611 | -80.12667 | 1348 | 7261 |
| McLaughlin Corners | city | Pennsylvania | United States | 41.72611 | -79.70889 | 1496 | 2195 |
| McMichael | city | Pennsylvania | United States | 40.995 | -75.39861 | 994 | 9990 |
| McMillan | city | Pennsylvania | United States | 40.13278 | -80.44667 | 1197 | 3778 |
| McMinns Summit | city | Pennsylvania | United States | 41.20278 | -78.77556 | 1597 | 7998 |
| McMurray | city | Pennsylvania | United States | 40.27778 | -80.08417 | 1194 | 32242 |
| McNary | city | Pennsylvania | United States | 40.27583 | -80.21917 | 1197 | 25097 |
| McNees | city | Pennsylvania | United States | 40.7975 | -79.44528 | 1286 | 3980 |
| McPherron | city | Pennsylvania | United States | 40.7725 | -78.61583 | 1771 | 2136 |
| McPhersons Corner | city | Pennsylvania | United States | 41.39944 | -79.58528 | 1499 | 3086 |
| McSherry | city | Pennsylvania | United States | 39.78583 | -77.01389 | 593 | 26750 |
| McSherrystown | city | Pennsylvania | United States | 39.80722 | -77.01167 | 600 | 37118 |
| McSparran | city | Pennsylvania | United States | 39.765 | -76.20833 | 291 | 4580 |
| McVeytown | city | Pennsylvania | United States | 40.49917 | -77.74167 | 498 | 2467 |
| McVille | city | Pennsylvania | United States | 40.72583 | -79.60306 | 997 | 5355 |
| McWilliams | city | Pennsylvania | United States | 40.96583 | -79.25222 | 1348 | 2038 |
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