- Lake Heritage
- Lake Meade
- Lake Wynonah
- Lebanon Independent
- Lebanon South
- Lickdale
- Lancaster
- Landingville
- Landisburg
- Lanesboro
- Langhorne
- Langhorne Manor
- Lansdale
- Lansdowne
- Lansford
- Laporte
- Larksville
- Latrobe
- Lanark
- Laurys Station
- Leather Corner Post
- Lehigh Furnace
- Lehigh Gap
- Litzenberg
- Lochland
- Lockridge
- Locust Valley
- Lynnport
- Lynnville
- Lyon Valley