- Long Porcupine Island
- Long Island
- Long Island
- La Croix Depot
- La Grande Island
- Lac Frontiere
- Lagrange
- Lake Arrowhead
- Lake Arrowhead Estates
- Lake City
- Lake Moxie
- Lake Parlin
- Lake View
- Lakeman Island
- Lakeside Landing
- Lakewood
- Lakewood
- Lamb Island
- Lamb Place
- Lambert Island
- Lambert Lake
- Lambs Corner
- Lamoine Beach
- Lamoine Corner
- Lamp Island
- Lane Island
- Lanes Island
- Langtown Mill
- Large Green Island
- Larone