- Liggett
- Lilly Dale
- Limedale
- Lincoln
- Lincoln City
- Lincoln Hills
- Lincoln Pioneer Village
- Lincoln Village
- Lincolnshire
- Lincolnville
- Lindenwood
- Linkville
- Linn Grove
- Linnsburg
- Linwood
- Lippe
- Lisbon
- Little Acre
- Little Charlie
- Little Point
- Little Rock
- Little Saint Louis
- Littles
- Liverpool
- Loafers Station
- Lochiel
- Locke
- Lockport
- Locust Grove
- Locust Point