- Little Rapids
- Lasalle Island
- Lawrence View Mobile Home Park
- Lazy Acres Mobile Home Park
- Le Petite Ciel Mobile Home Park
- Lees Island
- Leray Trailer Park
- Limerick
- Linda Island
- Little Basswood Island
- Little Birch Island
- Little Delight Island
- Little Galloo Island
- Little Grenadier Island
- Little Gull Island
- Little Ironsides Islands
- Little Island
- Little Lehigh Island
- Little Round Island
- Little Watch Island
- Lone Pine Island
- Long Rock Island
- Longue Vue Island
- Lotus Island
- Lyon Corner
- Lake Bonaparte
- Leisher Mill
- Locust Grove
- Lyonsdale
- Letchworth Estates Mobile Home Community