- La Belle
- Lambert
- Lamberton
- Landon Station
- Lardin
- Laurel Hill
- Laurelville
- Layton
- Leisenring
- Leith
- Leith-Hatfield
- Lewis Crossing
- Liberty
- Linn
- Little Summit
- Locust Hill
- Lowber
- Lower Peanut
- Lynn
- Lynnwood
- Lamonaville
- Little Hickory
- Lawrence Park
- Lebanon
- Levittown
- Lewisburg
- Linwood
- Loganville
- Long Branch
- Lorain