- Little Brook
- Littletown
- Locktown
- Lower Fairmount
- Lower Valley
- Lakeside Park
- Lawrence
- Lewisville
- Locust Corner
- Lahiere
- Laurel Park
- Lawrence Brook Manor
- Lincoln Park
- Lincoln Park
- Lindenau
- Lynn Woodoaks
- Lafayette Mills
- Lake Club
- Lake Como
- Leonardville
- Little Silver Point
- Low Moor
- Lake Arrowhead
- Lake Junction
- Lake Parsippany
- Liffy Island
- Littleton
- Loantaka Estates
- Logansville
- Long Hill