- La Grange Island
- Libby Island
- Lincoln Hills
- Long Island
- Little Island
- La Grange
- Langley
- Limerick
- Lone Tree Corners
- Love
- La Grange Island
- Little Indian
- Leverett
- Lotus
- Langleyville
- Livingston
- Lipsey
- La Salceda Subdivision
- La Vingnes Acres
- Lake Park Estates
- Lakeshire
- Landwehr Estates
- Lane Park
- Lee Acres
- Lee Woods
- Levelview Acres
- Linden Ridge
- Little Orchard Subdivision
- Lone Tree Subdivision
- Loveland's Subdivision