Place
- Hinsdale, Illinois3
- Homer Glen, Illinois3
- Homewood, Illinois3
- Indian Creek, Illinois3
- Ingalls Park, Illinois3
- Inverness, Illinois3
- Island Lake, Illinois3
- Itasca, Illinois3
- Kenilworth, Illinois3
- Kildeer, Illinois3
- Knollwood, Illinois3
- Lake Barrington, Illinois3
- Lake Bluff, Illinois3
- Lake County, Illinois3
- Lake Forest, Illinois3
- Lake Zurich, Illinois3
- Lemont, Illinois3
- Libertyville, Illinois3
- Lincolnshire, Illinois3
- Lisle, Illinois3