- Leisure Village Mobile Home Park
- Lockwood
- Loma
- Lakeside
- Laurel
- Lewistown
- Lima
- Lincoln
- Livingston
- Laurin
- Leary Place
- Leiterville
- Leonard Place
- Lebo
- Lingshire
- Loweth
- Lipske Trailer Court
- Lolo Peak Trailer Court
- Lothrop
- Livingston Island
- Long Island
- Loring Colony
- Lower Two Calf Island
- Lame Deer
- Lingenpolter
- Lavina
- Leisure Village
- Lewistown Heights
- Libby
- Ludington