- Laprades Mill
- Lake Frederick
- Lake Jackson
- Lake Occoquan Shores
- Lakeview
- Lakeview Estates
- Lakewood Acres
- Landview Estates
- Laurel Hills
- Lawnvale Estates
- Layside Estates
- Lee Manor
- Leetown
- Limstrong
- Lincoln Estates
- Lindau Woods
- Lindendale
- Locust Hill
- Long Level Estates
- Longview
- Lyman Park
- Laurel Mills
- Lurich
- Lara
- Lower Rocketts
- Lukes Island
- Luttrellville
- Lyells
- La Bellevue
- Laurel Hills