| Name | What | Region | Country | Lat | Long | Elev Ft. | Pop Est |
|---|
| Adah | city | Pennsylvania | United States | 39.89639 | -79.92222 | 800 | 10107 |
| Adams | city | Pennsylvania | United States | 40.94111 | -79.6425 | 1391 | 3419 |
| Adams | city | Pennsylvania | United States | 40.35944 | -77.86194 | 715 | 3949 |
| Adams Crossing | city | Pennsylvania | United States | 40.5425 | -78.88028 | 1660 | 2987 |
| Adamsburg | city | Pennsylvania | United States | 40.31167 | -79.65639 | 1112 | 43970 |
| Adamsdale | city | Pennsylvania | United States | 40.63611 | -76.12833 | 498 | 22414 |
| Adamstown | city | Pennsylvania | United States | 40.24111 | -76.05667 | 524 | 15346 |
| Adamsville | city | Pennsylvania | United States | 41.51111 | -80.37 | 997 | 2888 |
| Adamsville | city | Pennsylvania | United States | 39.88278 | -76.62139 | 731 | 29018 |
| Addingham | city | Pennsylvania | United States | 39.94222 | -75.305 | 200 | 287838 |
| Addison | city | Pennsylvania | United States | 39.74722 | -79.33944 | 2037 | 1513 |
| Adelaide | city | Pennsylvania | United States | 40.04333 | -79.62417 | 1118 | 23194 |
| Adele | city | Pennsylvania | United States | 39.97722 | -75.33389 | 246 | 144315 |
| Admire | city | Pennsylvania | United States | 39.96194 | -76.87083 | 482 | 24960 |
| Adrian | city | Pennsylvania | United States | 40.88472 | -79.53806 | 1102 | 5763 |
| Adrian Furnace | city | Pennsylvania | United States | 41.13194 | -78.78389 | 1397 | 13947 |
| Adrian Mines | city | Pennsylvania | United States | 40.98472 | -78.96056 | 1492 | 9923 |
| Advance | city | Pennsylvania | United States | 40.70861 | -79.26222 | 1263 | 3148 |
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