- Lyon
- Longwood
- LaMotte
- Little Berger
- Leavenworth Island
- Linkville
- La Due
- La Monte
- La Russell
- Laclede
- Laddonia
- Ladue
- Lake Annette
- Lake Lafayette
- Lake Lotawana
- Lake Mykee Town
- Lake Ozark
- Lake Saint Louis
- Lake Tapawingo
- Lake Waukomis
- Lake Winnebago
- Lakeshire
- Lemons
- Lickskillet
- Lone Star
- Lowground
- Lamar Heights
- Lanagan
- Latour
- Langston