River Basins in Illinois (Watersheds)

Watershed information from the “Surf your Watershed” USEPA website

Huc 8 Codes (click left mouse button to select)

• 07060005 Apple-Plum; state(s): IA, IL, WI
• 07110001 Bear-Wyaconda; state(s): IA, IL, MO
• 07140106 Big Muddy; state(s): IL
• 07140108 Cache; state(s): IL
• 07140101 Cahokia-Joachim; state(s): IL, MO
• 07120003 Chicago; state(s): IL, IN
• 07080101 Copperas-Duck; state(s): IA, IL
• 07120004 Des Plaines; state(s): IL, WI
• 05120112 Embarras; state(s): IL, IN
• 07080104 Flint-Henderson; state(s): IA, IL
• 07090007 Green; state(s): IL
• 07120002 Iroquois; state(s): IL, IN
• 07120001 Kankakee; state(s): IL, IN, MI
• 07090006 Kishwaukee; state(s): IL, WI
• 07130010 La Moine; state(s): IL
• 04060200 Lake Michigan; state(s): IL, IN, MI, WI
• 04040001 Little Calumet-Galien; state(s): IL, IN, MI
• 05120114 Little Wabash; state(s): IL, IN
• 07100009 Lower Des Moines; state(s): IA, IL, MO
• 07120007 Lower Fox; state(s): IL
• 07130011 Lower Illinois; state(s): IL
• 07130003 Lower Illinois-Lake Chautauqua; state(s): IL
• 07130001 Lower Illinois-Senachwine Lake; state(s): IL
• 07140204 Lower Kaskaskia; state(s): IL
• 08010100 Lower Mississippi-Memphis; state(s): AR, IL, KY, MO, MS, TN
• 05140206 Lower Ohio; state(s): IL, KY, MO
• 05140203 Lower Ohio-Bay; state(s): IL, KY
• 07090005 Lower Rock; state(s): IL, WI
• 07130008 Lower Sangamon; state(s): IL
• 05120113 Lower Wabash; state(s): IL, IN, KY
• 07080103 Lower Wapsipinicon; state(s): IA, IL
• 07130004 Mackinaw; state(s): IL
• 07130012 Macoupin; state(s): IL
• 07140202 Middle Kaskaskia; state(s): IL
• 05120111 Middle Wabash-Busseron; state(s): IL, IN
• 05120108 Middle Wabash-Little Vermilion; state(s): IL, IN
• 07090003 Pecatonica; state(s): IL, WI
• 07110009 Peruque-Piasa; state(s): IL, MO
• 04040002 Pike-Root; state(s): IL, WI
• 05140204 Saline; state(s): IL
• 07130009 Salt; state(s): IL
• 07140203 Shoal; state(s): IL
• 05120115 Skillet; state(s): IL
• 07080107 Skunk; state(s): IA, IL
• 07130007 South Fork Sangamon; state(s): IL
• 07130005 Spoon; state(s): IL
• 07090004 Sugar; state(s): IL, WI
• 07110004 The Sny; state(s): IL, MO
• 07120006 Upper Fox; state(s): IL, WI
• 07120005 Upper Illinois; state(s): IL
• 07140201 Upper Kaskaskia; state(s): IL
• 07140105 Upper Mississippi-Cape Girardeau; state(s): IL, MO
• 07090001 Upper Rock; state(s): IL, WI
• 07130006 Upper Sangamon; state(s): IL
• 07130002 Vermilion; state(s): IL
• 05120109 Vermilion; state(s): IL, IN