Airports 2,451 to 2,500
Osage City Municipal Airport
East Troy Municipal Airport
Mercyhealth Crystal Lake Hospital Heliport
Sauk Centre Municipal Airport
Memorial Hospital of Taylor County Heliport
Illinois Department of Transportation Heliport
St Francis Medical Center Heliport
Northwestern Medicine McHenry Hospital Heliport
Clay Center Municipal Airport
St Charles County Regional Airport/Smartt Field
Fort Riley LRS (Division Consolidated UAS Site)