- Lake Charlotte
- Leon Corners
- Little Oklahoma
- Little Rock Island
- Longview Estates
- Lake
- Langham Island
- Leesville
- Lehigh
- Limestone
- Litchfield
- Log Cabin Camp
- Lake of the Woods
- Lakeview Estates
- Lakeview Estates West
- Lakewood Estates
- Lakewood Falls
- Lakewood Ridge
- Larkins Pointe
- Liberty Grove
- Lidice
- Lincolnshire
- Lincolnwood Hills
- Lisbon Center
- Little Rock
- Lockport Heights
- Long Run Acres
- Long Run Creek
- Lorenzo
- Lively Grove