- Lochiel
- Locke
- Lockport
- Locust Grove
- Locust Point
- Lodi
- Log Cabin Crossroads
- Logan
- Logan
- Logansport
- Lomax
- London
- London Heights
- Lone Tree
- Long Beach
- Long Lake Island
- Long Run
- Longview Beach
- Longwood Crossing
- Loogootee
- Lookout
- Lorane
- Loree
- Losantville
- Lost River
- Lottaville
- Lottick Corner
- Lotus
- Lovett
- Lowell