UpAlphabetical listing of Places in Pennsylvania
| Name | What | Region | Country | Lat | Long | Elev ft. | Pop est |
| Atco | city | Pennsylvania | United States | 41.62 | -75.09 | 895 | |
| Atglen | city | Pennsylvania | United States | 39.95 | -75.97 | 830 | |
| Athens | city | Pennsylvania | United States | 41.96 | -76.52 | 830 | |
| Atkinson Mills | city | Pennsylvania | United States | 40.46 | -77.82 | 830 | |
| Atlantic | city | Pennsylvania | United States | 40.36 | -79.32 | 1197 | |
| Atlantic | city | Pennsylvania | United States | 40.84 | -78.40 | 1696 | |
| Atlantic | city | Pennsylvania | United States | 41.50 | -80.34 | 1167 | |
| Atlantic | city | Pennsylvania | United States | 39.78 | -79.92 | 1000 | |
| Atlas | city | Pennsylvania | United States | 40.80 | -76.43 | 1099 | |
| Atlasburg | city | Pennsylvania | United States | 40.34 | -80.38 | 1095 | |
| Atwells Crossing | city | Pennsylvania | United States | 41.11 | -79.92 | 1669 | |
| Atwood | city | Pennsylvania | United States | 40.75 | -79.27 | 1200 | |
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