Cities
- Crystal Lake, Illinois
- McHenry, Illinois
- Woodstock, Illinois
- Algonquin, Illinois
- Cary, Illinois
- Huntley, Illinois
- Marengo, Illinois
- Harvard, Illinois
- Johnsburg, Illinois
- Lake in the Hills, Illinois
- Richmond, Illinois
- Wonder Lake, Illinois
- Spring Grove, Illinois
- Island Lake, Illinois
- Lakemoor, Illinois
- Hebron, Illinois
- Oakwood Hills, Illinois
- Prairie Grove, Illinois
- McCullom Lake, Illinois
- Bull Valley, Illinois
- Port Barrington, Illinois
- Union, Illinois
- Holiday Hills, Illinois
- Marengo, Illinois
- Greenwood, Illinois
- Ridgefield, Illinois
- Chemung, Illinois
- Hartland, Illinois
- Alden, Illinois
- McHenry Township, Illinois
- Nunda Township, Illinois
- Algonquin Township, Illinois
- Grafton Township, Illinois
- Richmond Township, Illinois
- Coral Township, Illinois
- Riley Township, Illinois
- Dunham Township, Illinois
- Hebron Township, Illinois
- Burton Township, Illinois
- Marengo Township, Illinois
- Seneca Township, Illinois