ICAO		IATA		Other		Location
				4IA2		West Liberty [Walker Field], Iowa, US (46 mi / 74 km W)
				LL08		Princeton [Advanced Asphalt Heliport], Illinois, US (46 mi / 74 km E)
				8C4		Tipton [Mathews Memorial Airport], Iowa, US (46 mi / 74 km NW)
				IS67		Princeton [Osf St. Clare Hospital Heliport], Illinois, US (47 mi / 76 km E)
				IL01		Abingdon [Wolford's Airport], Illinois, US (47 mi / 76 km S)
				IL58		Princeton [Jonathan and Julianne Mabry Heliport], Illinois, US (48 mi / 78 km E)
				0IA4		Mediapolis [Sharar Field], Iowa, US (48 mi / 78 km SW)
				53IL		Tiskilwa [Steil Airport], Illinois, US (50 mi / 80 km E)
				60IL		Biggsville [Beulah Land Farm Airport], Illinois, US (50 mi / 80 km SW)
				2C6		Yates City [Tri-County Airport], Illinois, US (50 mi / 81 km S)
				49IS		Dixon [Katherine Shaw Bethea Hospital Heliport], Illinois, US (52 mi / 83 km NE)
				78IL		Dixon [Dixon Correctional Center Heliport], Illinois, US (52 mi / 84 km NE)
				15IA		Bellvue [Stella Airport], Iowa, US (53 mi / 85 km N)
				72LL		Princeton [Foley Airport], Illinois, US (53 mi / 85 km E)
				C73		Dixon [Muni-Charles R Walgreen Field], Illinois, US (53 mi / 85 km NE)
				1IS4		Lanark [Swan Valley Farm Airport], Illinois, US (53 mi / 85 km NE)
				6IL4		Lanark [Foxfield Aerodrome], Illinois, US (53 mi / 85 km NE)
				LL64		Putnam [Ralph E Daniels Airport], Illinois, US (53 mi / 86 km E)
				00IL		Polo [Hammer Airport], Illinois, US (54 mi / 86 km NE)
				LL55		Polo [Gentry Airport], Illinois, US (54 mi / 87 km NE)