- Lanark
- Lander Crossing
- Landusky
- Larchwood
- Laredo
- Larslan
- Laurin
- Lazy Day Court
- Leadville
- Leary Place
- Lebo
- Ledger
- Lehigh
- Leibrands Trailer Court
- Leisure Village
- Leisure Village Mobile Home Park
- Leiterville
- Lennep
- Leonard Place
- Leroy
- Lewistown Junction
- Lexley Acres Mobile Home Park
- Limestone
- Lindisfarne
- Lindsay
- Lingenpolter
- Lingshire
- Lippard
- Lipske Trailer Court
- Little Browning