- Leesburg
- Leesville
- Lehigh
- Leisure City
- Leithton
- Lemens
- Lementon
- Leon Corners
- Leonard
- Leopold Island
- Lester
- Level Acres
- Levelview Acres
- Leverett
- Levings
- Lewis Corner
- Lewisburg
- Libby Island
- Liberty
- Liberty Grove
- Liberty Hill
- Lick Creek
- Lidice
- Lightsville
- Lilly
- Lillyville
- Lily Cache
- Lilymoor
- Limerick
- Limestone