Place
- Libertyville, Illinois1
- Lily Lake, Illinois1
- Lincolnshire, Illinois1
- Lindenhurst, Illinois1
- Lisbon, Illinois1
- Lisle, Illinois1
- Lockport Heights, Illinois1
- Lockport, Illinois1
- Lombard, Illinois1
- Long Grove, Illinois1
- Long Lake, Illinois1
- Lorenzo, Illinois1
- Lynwood, Illinois1
- Manhattan, Illinois1
- Manteno, Illinois1
- Markham, Illinois1
- Marley, Illinois1
- Maryland1
- Matteson, Illinois1
- Mazon, Illinois1