| Name | What | Region | Country | Lat | Long | Elev Ft. | Pop Est |
|---|
| Lucasville | city | Pennsylvania | United States | 40.87722 | -79.7775 | 1246 | 6181 |
| Lucerne Mines | city | Pennsylvania | United States | 40.55889 | -79.15139 | 1112 | 21815 |
| Luces Corners | city | Pennsylvania | United States | 41.61611 | -79.83333 | 1420 | 1979 |
| Lucinda | city | Pennsylvania | United States | 41.30833 | -79.37 | 1551 | 2443 |
| Luciusboro | city | Pennsylvania | United States | 40.51056 | -79.1225 | 1686 | 5822 |
| Lucket | city | Pennsylvania | United States | 40.46361 | -78.62 | 1994 | 8557 |
| Lucknow | city | Pennsylvania | United States | 40.3275 | -76.88611 | 396 | 73497 |
| Lucky | city | Pennsylvania | United States | 39.90361 | -76.44583 | 593 | 4605 |
| Lucon | city | Pennsylvania | United States | 40.235 | -75.41611 | 242 | 31640 |
| Lucullus | city | Pennsylvania | United States | 41.36889 | -77.54028 | 1955 | 680 |
| Lucy Furnace | city | Pennsylvania | United States | 40.39333 | -77.88611 | 600 | 5107 |
| Ludlow | city | Pennsylvania | United States | 41.72833 | -78.94361 | 1761 | 1680 |
| Ludlow subdivision | city | Pennsylvania | United States | 39.97194 | -75.14667 | 52 | 629310 |
| Ludwigs Corner | city | Pennsylvania | United States | 40.11556 | -75.69389 | 620 | 15678 |
| Lumber City | city | Pennsylvania | United States | 40.92417 | -78.57528 | 1197 | 2228 |
| Lumber City | city | Pennsylvania | United States | 40.66028 | -77.60111 | 1118 | 14271 |
| Lumberville | city | Pennsylvania | United States | 40.40667 | -75.03833 | 154 | 9909 |
| Lundys Lane | city | Pennsylvania | United States | 41.8925 | -80.33917 | 967 | 3454 |
| Lungerville | city | Pennsylvania | United States | 41.2775 | -76.51222 | 1295 | 1336 |
| Lurgan | city | Pennsylvania | United States | 40.09389 | -77.63139 | 692 | 2383 |
| Lushbaugh | city | Pennsylvania | United States | 41.42306 | -78.03167 | 997 | 383 |
| Luthers Mills | city | Pennsylvania | United States | 41.78222 | -76.56667 | 898 | 1235 |
| Luthersburg | city | Pennsylvania | United States | 41.05333 | -78.71944 | 1981 | 6639 |
| Lutzville | city | Pennsylvania | United States | 40.00806 | -78.43583 | 1069 | 3056 |
| Luxor | city | Pennsylvania | United States | 40.33417 | -79.47833 | 1099 | 16313 |
| Luzerne | city | Pennsylvania | United States | 39.99917 | -79.96306 | 836 | 10161 |
| Luzerne | city | Pennsylvania | United States | 41.28556 | -75.90139 | 600 | 107208 |
|
|