| Name | What | Region | Country | Lat | Long | Elev ft. | Pop est |
|---|---|---|---|---|---|---|---|
| Liberty | city | Pennsylvania | United States | 40.04 | -79.66 | 1145 | |
| Liberty | city | Pennsylvania | United States | 40.33 | -79.86 | 938 | |
| Liberty | city | Pennsylvania | United States | 41.56 | -77.10 | 1669 | |
| Liberty | city | Pennsylvania | United States | 41.71 | -78.22 | 1722 | |
| Library | city | Pennsylvania | United States | 40.29 | -80.01 | 997 | |
| Library Junction | city | Pennsylvania | United States | 40.29 | -80.05 | 1112 | |
| Lickdale | city | Pennsylvania | United States | 40.45 | -76.51 | 830 | |
| Lickingville | city | Pennsylvania | United States | 41.38 | -79.37 | 1669 | |
| Liebys Trailer Park | city | Pennsylvania | United States | 40.23 | -77.10 | 830 | |
| Liewellyn Corners | city | Pennsylvania | United States | 41.23 | -75.80 | 1669 | |
| Light Street | city | Pennsylvania | United States | 41.04 | -76.42 | 830 | |
| Lightners Tract | city | Pennsylvania | United States | 39.99 | -76.74 | 400 | |
| Lightstreet | city | Pennsylvania | United States | 41.04 | -76.42 | 830 | |
| Ligonier | city | Pennsylvania | United States | 40.24 | -79.24 | 1197 | |
| Lilly | city | Pennsylvania | United States | 40.43 | -78.62 | 2011 | |
| Lillyville | city | Pennsylvania | United States | 40.84 | -80.24 | 1099 | |
| Lima | city | Pennsylvania | United States | 39.92 | -75.44 | 298 | |
| Lima Estates | city | Pennsylvania | United States | 39.92 | -75.44 | 298 | |
| Lime Bluff | city | Pennsylvania | United States | 41.23 | -76.76 | 830 | |
| Lime Ridge | city | Pennsylvania | United States | 41.03 | -76.34 | 830 | |
| Lime Ridge | city | Pennsylvania | United States | 40.64 | -75.29 | 324 | |
| Lime Valley | city | Pennsylvania | United States | 39.96 | -76.23 | 298 | |
| Limehill | city | Pennsylvania | United States | 41.72 | -76.29 | 1669 | |
| Limekiln | city | Pennsylvania | United States | 40.34 | -75.81 | 298 | |
| Limekiln Acres | city | Pennsylvania | United States | 40.18 | -76.95 | 400 | |
| Limeport | city | Pennsylvania | United States | 40.51 | -75.45 | 830 | |
| Limerick | city | Pennsylvania | United States | 40.23 | -75.52 | 298 | |
| Limerick Center | city | Pennsylvania | United States | 40.24 | -75.54 | 298 | |
| Limerick Greene | city | Pennsylvania | United States | 40.23 | -75.53 | 298 | |
| Limerick Village Mobile Home Park | city | Pennsylvania | United States | 40.23 | -75.53 | 298 | |
| Limerock | city | Pennsylvania | United States | 40.16 | -76.34 | 400 | |
| Limestone | city | Pennsylvania | United States | 41.13 | -79.33 | 1669 | |
| Limestoneville | city | Pennsylvania | United States | 41.04 | -76.75 | 830 | |
| Limeville | city | Pennsylvania | United States | 40.00 | -75.98 | 830 | |
| Lincoln | city | Pennsylvania | United States | 40.32 | -79.85 | 1000 | |
| Lincoln | city | Pennsylvania | United States | 40.20 | -76.20 | 396 | |
| Lincoln Falls | city | Pennsylvania | United States | 41.52 | -76.66 | 1194 | |
| Lincoln Heights | city | Pennsylvania | United States | 40.31 | -79.62 | 1236 | |
| Lincoln Hill | city | Pennsylvania | United States | 40.15 | -80.29 | 1197 | |
| Lincoln Park | city | Pennsylvania | United States | 40.31 | -75.99 | 298 | |
| Lincoln Park | city | Pennsylvania | United States | 40.46 | -79.88 | 1007 | |
| Lincoln Park | city | Pennsylvania | United States | 40.64 | -75.36 | 400 | |
| Lincoln Place | city | Pennsylvania | United States | 40.37 | -79.92 | 1102 | |
| Lincoln Terrace | city | Pennsylvania | United States | 40.69 | -75.26 | 298 | |
| Lincoln-Lemington | city | Pennsylvania | United States | 40.48 | -79.89 | 1171 | |
| Lincolntown (historical) | city | Pennsylvania | United States | 40.26 | -75.80 | 203 | |
| Lincolnville | city | Pennsylvania | United States | 41.79 | -79.84 | 1669 | |
| Lincolnwood | city | Pennsylvania | United States | 40.29 | -75.84 | 200 | |
| Linconia | city | Pennsylvania | United States | 40.13 | -74.98 | 101 | |
| Lindaville | city | Pennsylvania | United States | 41.73 | -75.81 | 1669 | |
| Lindberg Heights | city | Pennsylvania | United States | 40.23 | -75.53 | 298 | |
| Lindbergh | city | Pennsylvania | United States | 41.11 | -75.94 | 1669 | |
| Linden | city | Pennsylvania | United States | 40.23 | -80.14 | 997 | |
| Linden | city | Pennsylvania | United States | 41.23 | -77.14 | 830 | |
| Linden Grove | city | Pennsylvania | United States | 40.37 | -80.02 | 1174 | |
| Linden Hall | city | Pennsylvania | United States | 40.80 | -77.76 | 1197 | |
| Lindenfield | city | Pennsylvania | United States | 40.29 | -75.21 | 298 | |
| Linds Crossing | city | Pennsylvania | United States | 40.44 | -78.32 | 905 | |
| Line Lexington | city | Pennsylvania | United States | 40.29 | -75.26 | 301 | |
| Line Mountain | city | Pennsylvania | United States | 40.71 | -76.56 | 830 | |
| Linesville | city | Pennsylvania | United States | 41.66 | -80.42 | 1030 | |
| Linfield | city | Pennsylvania | United States | 40.21 | -75.57 | 101 | |
| Linfield Farms | city | Pennsylvania | United States | 40.22 | -75.56 | 200 | |
| Linfield Woods | city | Pennsylvania | United States | 40.21 | -75.56 | 200 | |
| Linglestown | city | Pennsylvania | United States | 40.33 | -76.79 | 830 | |
| Linhart | city | Pennsylvania | United States | 40.42 | -79.81 | 830 | |
| Linn | city | Pennsylvania | United States | 40.03 | -79.86 | 948 | |
| Linntown | city | Pennsylvania | United States | 40.96 | -76.90 | 830 | |
| Linstead | city | Pennsylvania | United States | 40.30 | -75.84 | 203 | |
| Linvilla | city | Pennsylvania | United States | 39.88 | -75.41 | 118 | |
| Linville Circle | city | Pennsylvania | United States | 40.03 | -76.26 | 347 | |
| Linwood | city | Pennsylvania | United States | 39.83 | -75.43 | 36 | |
| Lions Gate II | city | Pennsylvania | United States | 40.30 | -75.33 | 321 | |
| Lionville | city | Pennsylvania | United States | 40.05 | -75.66 | 830 | |
| Lippincott | city | Pennsylvania | United States | 39.94 | -80.12 | 997 | |
| Lisbon | city | Pennsylvania | United States | 41.20 | -79.79 | 1223 | |
| Lisburn | city | Pennsylvania | United States | 40.17 | -76.91 | 400 | |
| Listie | city | Pennsylvania | United States | 40.03 | -79.01 | 2509 | |
| Listonburg | city | Pennsylvania | United States | 39.75 | -79.31 | 1794 | |
| Litchfield | city | Pennsylvania | United States | 41.97 | -76.43 | 1669 | |
| Lithia Springs | city | Pennsylvania | United States | 40.92 | -76.76 | 830 | |
| Lititz | city | Pennsylvania | United States | 40.16 | -76.31 | 400 | |
| Little Britain | city | Pennsylvania | United States | 39.78 | -76.12 | 830 | |
| Little Chapel | city | Pennsylvania | United States | 41.42 | -75.37 | 1669 | |
| Little Chicago | city | Pennsylvania | United States | 39.86 | -79.96 | 997 | |
| Little Cooley | city | Pennsylvania | United States | 41.74 | -79.89 | 1207 | |
| Little Elk | city | Pennsylvania | United States | 41.96 | -80.29 | 898 | |
| Little Farm Trace Park | city | Pennsylvania | United States | 40.27 | -75.22 | 406 | |
| Little Gap | city | Pennsylvania | United States | 40.83 | -75.52 | 830 | |
| Little Germany | city | Pennsylvania | United States | 40.38 | -77.26 | 830 | |
| Little Hickory | city | Pennsylvania | United States | 41.54 | -79.40 | 1669 | |
| Little Hollywood Mobile Home Park | city | Pennsylvania | United States | 40.23 | -76.77 | 830 | |
| Little Hope | city | Pennsylvania | United States | 42.10 | -79.82 | 1669 | |
| Little Italy | city | Pennsylvania | United States | 40.27 | -75.02 | 229 | |
| Little Jack Corners | city | Pennsylvania | United States | 40.16 | -78.36 | 1118 | |
| Little Kansas | city | Pennsylvania | United States | 40.49 | -77.81 | 1013 | |
| Little Marsh | city | Pennsylvania | United States | 41.88 | -77.40 | 1669 | |
| Little Meadows | city | Pennsylvania | United States | 41.99 | -76.13 | 1095 | |
| Little Oley | city | Pennsylvania | United States | 40.31 | -75.65 | 830 | |
| Little Roundtop | city | Pennsylvania | United States | 40.65 | -77.36 | 938 | |
| Little Summit | city | Pennsylvania | United States | 39.99 | -79.67 | 1197 | |
| Little Summit | city | Pennsylvania | United States | 40.12 | -80.11 | 1230 | |
| Little Summit | city | Pennsylvania | United States | 41.10 | -75.41 | 1899 | |
| Little Washington | city | Pennsylvania | United States | 40.05 | -75.78 | 830 | |
| Littles Corners | city | Pennsylvania | United States | 41.71 | -80.23 | 1099 | |
| Littlestown | city | Pennsylvania | United States | 39.74 | -77.09 | 830 | |
| Littletown | city | Pennsylvania | United States | 40.52 | -79.03 | 1797 | |
| Litzenberg | city | Pennsylvania | United States | 40.59 | -75.60 | 830 | |
| Live Easy | city | Pennsylvania | United States | 39.86 | -79.94 | 830 | |
| Livermore | city | Pennsylvania | United States | 40.46 | -79.33 | 902 | |
| Liverpool | city | Pennsylvania | United States | 40.57 | -76.99 | 400 | |
| Livonia | city | Pennsylvania | United States | 40.98 | -77.29 | 1669 | |
| Lizard Creek Junction | city | Pennsylvania | United States | 40.79 | -75.66 | 830 |