- La Crosse
- La Fontaine
- La Paz
- La Porte
- Laconia
- Ladoga
- Lafayette
- Lagrange
- Lagro
- Lake Dalecarlia
- Lake Hart
- Lake Holiday
- Lake Station
- Lake Village
- Lakes of the Four Seasons
- Laketon
- Lakeville
- Landess
- Lanesville
- Lapel
- LaPorte
- Larwill
- Laurel
- Lawrence
- Lawrenceburg
- Leavenworth
- Lebanon
- Leesburg
- Leo-Cedarville
- Lewisville
- Liberty
- Ligonier
- Linden
- Linton
- Little York
- Livonia
- Lizton
- Logansport
- Long Beach
- Loogootee
- Losantville
- Lowell
- Lowell
- Lynn
- Lynnville
- Lyons
