Towns
| State | City/Town | Town Title |
|---|---|---|
| Pennsylvania | Lemont | Lemont, PA |
| Pennsylvania | Lemont Furnace | Lemont Furnace, PA |
| Pennsylvania | Lemoyne | Lemoyne, PA |
| Pennsylvania | Lenhartsville | Lenhartsville, PA |
| Pennsylvania | Lenni | Lenni, PA |
| Pennsylvania | Lenoxville | Lenoxville, PA |
| Pennsylvania | Leola | Leola, PA |
| Pennsylvania | Levittown | Levittown, PA |
| Pennsylvania | Lewis Run | Lewis Run, PA |
| Pennsylvania | Lewisberry | Lewisberry, PA |
| Pennsylvania | Lewisburg | Lewisburg, PA |
| Pennsylvania | Lewistown | Lewistown, PA |
| Pennsylvania | Lewisville | Lewisville, PA |
| Pennsylvania | Liberty | Liberty, PA |
| Pennsylvania | Lickingville | Lickingville, PA |
| Pennsylvania | Light Street | Light Street, PA |
| Pennsylvania | Ligonier | Ligonier, PA |
| Pennsylvania | Lilly | Lilly, PA |
| Pennsylvania | Limekiln | Limekiln, PA |
| Pennsylvania | Limeport | Limeport, PA |
| Pennsylvania | Limestone | Limestone, PA |
| Pennsylvania | Lincoln University | Lincoln University, PA |
| Pennsylvania | Linden | Linden, PA |
| Pennsylvania | Line Lexington | Line Lexington, PA |
| Pennsylvania | Linesville | Linesville, PA |