- Lower Bartlett
- Leominster Corner
- Lower Village
- Lost Nation
- Landaff Center
- Laurel Island
- LeBruns Mobile Home Park
- Lockehaven
- Loon Island
- Lost River
- Lyme Center
- Lady Isle
- Lamprey Corners
- Langs Corner
- Leachs Island
- Leavitts Hill
- Little Boars Head
- Little Island
- Little Seavey Island
- Littlefield
- Log Cabin
- Loon Island
- Loon Island
- Lunging Island
- Lyford Crossing
- Lawrence Corner
- Lincoln Park
- Loverens Mill
- Lakeside
- Loudon Center