Place
- Lake County, Illinois1
- Lake Forest, Illinois1
- Lake In The Hills, Illinois1
- Lake Villa, Illinois1
- Lake Zurich, Illinois1
- Lakemoor, Illinois1
- Lakewood Shores, Illinois1
- Lakewood, Illinois1
- Lansing, Illinois1
- Lemont, Illinois1
- Libertyville, Illinois1
- Lily Lake, Illinois1
- Lincolnshire, Illinois1
- Lincolnwood, Illinois1
- Lindenhurst, Illinois1
- Lisbon, Illinois1
- Lisle, Illinois1
- Lockport Heights, Illinois1
- Lockport, Illinois1
- Lombard, Illinois1