Place
- Lake County, Illinois1
- Lake Forest, Illinois1
- Lake Zurich, Illinois1
- Lansing, Illinois1
- Lemont, Illinois1
- Libertyville, Illinois1
- Lincolnshire, Illinois1
- Lincolnwood, Illinois1
- Lisle, Illinois1
- Lockport Heights, Illinois1
- Lockport, Illinois1
- Lombard, Illinois1
- Long Grove, Illinois1
- Long Lake, Illinois1
- Lynwood, Illinois1
- Lyons, Illinois1
- Markham, Illinois1
- Marley, Illinois1
- Matteson, Illinois1
- Maywood, Illinois1