- Locust Grove
- Log Landing
- Lambs Creek
- Lanesville
- Lankford Corner
- Litwalton
- Lansdowne Town Center
- Leithtown
- Lenah
- Levy
- Little Washington
- Littletown
- Longview
- Loudoun Heights
- Loudoun Valley Estates
- Lowes Island
- Loyalty
- Lucketts
- Locust Creek
- Lochleven
- Loves Mill
- Laban
- Lewis Island (historical)
- Lombardy Grove
- Lahore
- Larmond
- Liberty Mills
- Locklies
- Locust Hill
- La Plateau