- Laurel Mountain Park
- Laurel Run
- Laureldale
- Lawnton
- Laketon
- Langdon
- Lattimer
- Lee
- Lee Park
- Lehman
- Liewellyn Corners
- Lindbergh
- Little Island
- Llewellyn Corners
- Loomis Park
- Lower Askam
- Loyalville
- Lynnwood
- Lawrence Park
- Lawson Heights
- Le Raysville
- Langdon
- Larrys Creek
- Larryville
- Lebo Vista
- Leolyn
- Level Corner
- Lime Bluff
- Linden
- Long Island