| Apple Creek | 70.1 | 99 |
| Apple Creek - Left Fork | 16.1 | 16 |
| Apple River (Mississippi River tributary) | 50.1 | 59 |
| Apple River - West Fork (Mississippi River tributary) | 9.1 | 9 |
| Aux Sable Creek | 20.8 | 59 |
| Bankston Fork | 16.4 | 16 |
| Bay Creek (Mississippi River tributary) | 52 | 52 |
| Bay Creek (Ohio River tributary) | 58.5 | 74 |
| Bear Creek (Cane Creek tributary) | 19.3 | 19 |
| Bear Creek (Hodges Creek tributary) | 19.9 | 20 |
| Bear Creek (Mississippi River tributary) | 44.1 | 119 |
| Bear Creek (Sangamon River - South Fork tributary) | 23.7 | 24 |
| Bear Creek - South Fork (Mississippi River tributary) | 29.3 | 46 |
| Beaucoup Creek | 82.1 | 173 |
| Beaver Creek (Iroquois River tributary) | 21.6 | 37 |
| Beaver Creek (Kishwaukee River tributary) | 31.2 | 31 |
| Beaver Creek (Shoal Creek tributary) | 43.7 | 44 |
| Becks Creek | 28.3 | 50 |
| Big Bureau Creek | 73.8 | 194 |
| Big Creek (Cache River tributary) | 18.2 | 18 |
| Big Creek - East Fork (Wabash River tributary) | 15.4 | 15 |
| Big Creek (Embarras River tributary) | 25.7 | 41 |
| Big Creek (Kaskaskia River tributary) | 10.8 | 36 |
| Big Creek (Spoon River tributary) | 33.8 | 34 |
| Big Creek (Wabash River tributary) | 11.1 | 43 |
| Big Creek - West Fork (Wabash River tributary) | 16.4 | 16 |
| Big Grand Pierre Creek | 16.2 | 16 |
| Big Muddy Creek | 49.1 | 100 |
| Big Muddy River | 156.1 | 739 |
| Big Muddy River - Middle Fork | 41.7 | 60 |
| Bigneck Creek | 16.4 | 16 |
| Big Rock Creek | 13.9 | 59 |
| Big Rock Creek - East Branch | 15.2 | 15 |
| Big Rock Creek -West Branch | 13.6 | 14 |
| Big Sandy Creek | 40.2 | 72 |
| Bills Run | 15.4 | 15 |
| Bishop Creek | 20.4 | 20 |
| Blackberry Creek | 36.7 | 37 |
| Blue Creek | 19 | 19 |
| Bonpas Creek | 58.3 | 75 |
| Bradshaw Creek | 15.4 | 15 |
| Bronson Creek | 17.7 | 18 |
| Brouilletts Creek | 4.6 | 39 |
| Brush Creek (East Bureau Creek tributary) | 27.5 | 28 |
| Brush Creek (Horse Creek (Sangamon River - South Fork tributary)) | 24.4 | 24 |
| Brush Creek (Skillet Fork tributary) | 23.1 | 23 |
| Brushy Creek | 15.4 | 15 |
| Brushy Fork | 27.3 | 27 |
| Bubbly Creek | 1.3 | 1 |
| Buck Creek (Fox River (Illinois River tributary)) | 15.8 | 16 |
| Buck Creek (Little Wabash River tributary) | 20.8 | 21 |
| Buckhart Creek | 24.6 | 25 |
| Buffalo Creek | 15 | 15 |
| Burton Creek | 15 | 15 |
| Butterfield Creek | 15.2 | 15 |
| Cahokia Canal | 9 | 119 |
| Cahokia Creek | 55.3 | 110 |
| Cahokia Creek - West Fork | 12.7 | 13 |
| Calumet River | 7.7 | 8 |
| Calumet Sag Channel | 16.1 | 100 |
| Camp Creek (Edwards River tributary) | 25.7 | 26 |
| Camp Creek (Edwards River tributary) | 21.7 | 22 |
| Camp Creek (La Moine River tributary) | 33.8 | 54 |
| Camp Creek (Mississippi River tributary) | 18.1 | 18 |
| Camp Creek (Plum River tributary) | 18.4 | 18 |
| Camp Creek (Sangamon River tributary) | 16.6 | 17 |
| Cane Creek | 14.9 | 34 |
| Carroll Creek | 16.5 | 17 |
| Casey Fork | 38.9 | 39 |
| Cedar Creek (Big Muddy River tributary) | 23.1 | 23 |
| Cedar Creek (Henderson Creek tributary) | 46.2 | 46 |
| Cedar Creek (Illinois River tributary) | 16.6 | 17 |
| Cedar Creek (La Moine River tributary) | 24.1 | 24 |
| Cedar Creek (Little Richard Creek tributary) | 17.4 | 17 |
| Cedar Creek (Spoon River tributary) | 48.1 | 96 |
| Cedar Fork | 17 | 17 |
| Chicago River | 1.3 | 1 |
| Chicago River - North Branch | 39.7 | 83 |
| Chicago River - North Branch - West Fork | 15.6 | 16 |
| Chicago River - South Branch | 8.8 | 94 |
| Chicago Sanitary and Ship Canal | 27 | 221 |
| Clary Creek | 19.6 | 20 |
| Clear Creek (Illinois River tributary) | 15.5 | 16 |
| Clear Creek (Indian Creek (Illinois River tributary)) | 19.1 | 19 |
| Clear Creek (Sangamon River - South Fork tributary) | 20.5 | 21 |
| Clear Creek (Sexton Creek tributary) | 28.3 | 28 |
| Clear Creek (Wabash River tributary) | 17.2 | 17 |
| Coon Creek (Kishwaukee River tributary) | 29.6 | 30 |
| Coon Creek (Rock River tributary) | 25.9 | 26 |
| Coon Creek (Sugar Creek (Iroquois River tributary)) | 17.3 | 17 |
| Coon Run | 19.7 | 20 |
| Coop Branch | 20.3 | 20 |
| Copperas Creek - East Branch (Illinois River tributary) | 20.2 | 20 |
| Copperas Creek (Illinois River tributary) | 6.4 | 57 |
| Copperas Creek - Middle Branch (Illinois River tributary) | 14.1 | 14 |
| Copperas Creek (Mississippi River tributary) | 32.2 | 32 |
| Copperas Creek - West Branch (Illinois River tributary) | 16.3 | 30 |
| Cottonwood Creek | 17.7 | 18 |
| Covel Creek | 18.5 | 19 |
| Crabapple Creek | 18.9 | 34 |
| Crab Orchard Creek | 47.7 | 101 |
| Crane Creek (Granary Creek tributary) | 16.9 | 17 |
| Crane Creek (Illinois River tributary) | 15.6 | 16 |
| Crooked Creek (Embarras River tributary) | 6.5 | 41 |
| Crooked Creek (Kaskaskia River tributary) | 74.5 | 160 |
| Crooked Creek (Little Wabash River) | 21.3 | 21 |
| Crookedleg Creek | 16.1 | 16 |
| Crow Creek (Illinois River tributary) | 18 | 55 |
| Crow Creek (Illinois River tributary) | 33 | 33 |
| Crow Creek - North Branch (Illinois River tributary) | 15.5 | 16 |
| Crow Creek - South Branch (Illinois River tributary) | 21.7 | 22 |
| Cypress Creek | 26 | 26 |
| Deer Creek (Salt Creek (Sangamon River tributary)) | 18.9 | 19 |
| Deer Creek (Thorn Creek tributary) | 18.6 | 19 |
| Des Plaines River | 110.8 | 548 |
| Dillon Creek | 18 | 18 |
| Dismal Creek | 24.6 | 25 |
| Dogwood Creek | 15.2 | 15 |
| Doza Creek | 20.1 | 20 |
| Drowning Fork | 18.8 | 19 |
| Drummer Creek | 18.1 | 18 |
| Drury Creek | 20.8 | 21 |
| Dugout Creek | 15.2 | 15 |
| Dums Creek | 27.9 | 28 |
| DuPage River | 28.2 | 106 |
| Du Page River - East Branch | 24.9 | 25 |
| Du Page River - West Branch | 35 | 35 |
| Dutchman Creek | 22.9 | 38 |
| Eagle Creek | 16.7 | 17 |
| East Aux Sable Creek | 11.2 | 11 |
| East Bureau Creek | 26.8 | 54 |
| East Crooked Creek | 19.9 | 20 |
| East Lake Fork | 14.5 | 15 |
| East Plum River | 22.6 | 23 |
| Edwards River | 74.2 | 141 |
| Eliza Creek | 24.4 | 24 |
| Elkhorn Creek | 31.3 | 31 |
| Elkhorn Creek | 55.7 | 71 |
| Ellison Creek | 25.3 | 25 |
| Ellison Creek Diverson Ditch | 11.2 | 37 |
| Elm Creek | 16.2 | 16 |
| Elm River | 23 | 63 |
| Elm River Drainage Ditch | 9.8 | 73 |
| Embarras River | 194.5 | 674 |
| Embarras River - East Branch | 20.3 | 20 |
| Embarras River - North Fork | 62.3 | 108 |
| Ewing Creek | 18.3 | 18 |
| Farm Creek | 19.5 | 20 |
| Finley Creek | 18.6 | 19 |
| Fivemile Creek | 16.3 | 16 |
| Flat Branch | 37.7 | 38 |
| Flat Creek | 18.3 | 18 |
| Flour Creek | 24.3 | 44 |
| Forked Creek | 37.6 | 60 |
| Forked Creek - South Branch | 22.3 | 22 |
| Fountain Creek | 30.1 | 30 |
| Fountain Creek | 20.5 | 37 |
| Fourmile Creek | 18.8 | 19 |
| Fox River (Illinois River tributary) | 118.5 | 494 |
| Fox River (Little Wabash River tributary) | 46.3 | 46 |
| Franklin Creek | 18.3 | 18 |
| French Creek | 24.2 | 24 |
| Friends Creek | 21.9 | 22 |
| Fulfer Creek | 18.5 | 19 |
| Galena River | 15.3 | 27 |
| Galena River - East Fork | 11.8 | 12 |
| Galum Creek | 39.8 | 55 |
| Gooseberry Creek (Mazon River tributary) | 20.6 | 21 |
| Gooseberry Creek (Mazon River - West Fork tributary) | 26.4 | 26 |
| Goose Creek | 20.1 | 20 |
| Granary Creek | 13.6 | 31 |
| Grand Calumet River - West Branch (westerly flow) | 2.8 | 3 |
| Grassy Creek | 18.9 | 19 |
| Green River | 89.3 | 156 |
| Grindstone Creek | 20 | 20 |
| Grove Creek | 15.2 | 15 |
| Gun Creek | 19.3 | 19 |
| Hackett Branch | 19.1 | 19 |
| Hadley Creek | 20.7 | 21 |
| Hadley-McCraney Diversion Ditch | 4.6 | 45 |
| Haw Creek | 29.2 | 29 |
| Hayes Creek | 15.1 | 15 |
| Henderson Creek | 64.9 | 202 |
| Henline Creek | 17.7 | 18 |
| Hickory Creek (Des Plaines River tributary) | 25.2 | 41 |
| Hickory Creek (Kaskaskia River tributary) | 23.9 | 24 |
| Hodges Creek | 7.9 | 126 |
| Hog Run | 17.1 | 17 |
| Honey Creek (Mississippi River tributary) | 28 | 28 |
| Honey Creek (Pecatonica River tributary) | 1.2 | 1 |
| Horse Creek - East Branch (Kankakee River tributary) | 15.2 | 15 |
| Horse Creek (Kankakee River tributary) | 7.8 | 43 |
| Horse Creek (Kaskaskia River tributary) | 28.8 | 29 |
| Horse Creek (Sangamon River - South Fork tributary) | 35.9 | 74 |
| Horse Creek (Skillet Fork tributary) | 31.1 | 31 |
| Horse Creek - West Branch (Kankakee River tributary) | 19.5 | 20 |
| Horse Creek - West Branch (Sangamon River - South Fork tributary) | 13.2 | 13 |
| Hurricane Creek (Big Muddy Creek tributary) | 18.9 | 19 |
| Hurricane Creek (Illinois River tributary) | 15.6 | 16 |
| Hurricane Creek (Kaskaskia River tributary) | 47.6 | 48 |
| Hurricane Creek (Macoupin Creek tributary) | 17.5 | 18 |
| Illinois River | 273.2 | 6,950 |
| Indian Creek (Cahokia Creek tributary) | 23.3 | 23 |
| Indian Creek (Fox River (Illinois River tributary)) | 51.5 | 103 |
| Indian Creek (Illinois River tributary) | 39 | 91 |
| Indian Creek (Spoon River tributary) | 26.5 | 27 |
| Indian Creek (Vermilion River - South Fork (Illinois River tributary)) | 29.6 | 30 |
| Iroquois River | 55.3 | 348 |
| Jackson Creek | 25.1 | 25 |
| Joes Creek | 19.6 | 20 |
| Johnny Run | 29.8 | 30 |
| Johnson Creek | 26.5 | 27 |
| Jonathan Creek | 18.7 | 19 |
| Jordan Creek (Vermilion River - North Fork - Middle Branch (Wabash River tributary)) | 7.4 | 7 |
| Kankakee River | 58.3 | 615 |
| Kaskaskia River | 304.6 | 1,679 |
| Kaskaskia River - East Fork | 51.7 | 83 |
| Kaskaskia River - East Fork - North Fork | 30.9 | 31 |
| Kickapoo Creek (Embarras River tributary) | 20.6 | 36 |
| Kickapoo Creek (Illinois River tributary) | 46.4 | 70 |
| Kickapoo Creek (Salt Creek (Sangamon River tributary)) | 63.4 | 96 |
| Kickapoo Creek - West Fork (Illinois River tributary) | 24 | 24 |
| Killbuck Creek | 30.7 | 31 |
| Kinkaid Creek | 24 | 24 |
| Kiser Creek | 21.1 | 21 |
| Kishwaukee River | 63.5 | 343 |
| Kishwaukee River - North Branch | 18.7 | 19 |
| Kishwaukee River - South Branch | 21.8 | 22 |
| Kishwaukee River - South Branch | 64.3 | 105 |
| Kishwaukee River - South Branch - East Branch | 23.8 | 24 |
| Kyte River | 31.6 | 32 |
| La Harpe Creek | 26.8 | 27 |
| Lake Fork (Kaskaskia River tributary) | 24 | 39 |
| Lake Fork - North Fork (Salt Creek tributary) | 27.5 | 28 |
| Lake Fork (Salt Creek (Sangamon River tributary)) | 21.2 | 49 |
| Lake Fork (Shoal Creek tributary) | 15.8 | 16 |
| Lamarsh Creek | 2.1 | 26 |
| Lamarsh Creek - East Branch | 11.2 | 11 |
| Lamarsh Creek - West Branch | 12.8 | 13 |
| La Moine River | 125.4 | 452 |
| La Moine River - East Fork | 56.5 | 75 |
| La Moine River - South Branch | 16.8 | 17 |
| Langan Creek | 24.9 | 25 |
| Leaf River | 31.3 | 31 |
| Lick Creek | 30.7 | 45 |
| Lick Creek | 16.3 | 16 |
| Lick Creek - South Fork | 14.7 | 15 |
| Lily Cache Creek | 18 | 18 |
| Little Apple Creek | 13.2 | 13 |
| Little Bear Creek | 13.3 | 13 |
| Little Beaucoup Creek | 15.5 | 16 |
| Little Beaver Creek | 15.4 | 15 |
| Little Bonpas Creek | 16.4 | 16 |
| Little Cache Creek | 15.1 | 15 |
| Little Calumet River (westerly flow) | 19.1 | 84 |
| Little Crab Orchard Creek | 13.9 | 14 |
| Little Crooked Creek | 17.6 | 18 |
| Little Embarras River | 19.4 | 19 |
| Little Galum Creek | 15.3 | 15 |
| Little Indian Creek (Indian Creek (Fox River (Illinois River tributary))) | 35 | 35 |
| Little Indian Creek (Indian Creek (Illinois River tributary)) | 17.4 | 17 |
| Little Kickapoo Creek | 16.7 | 17 |
| Little Mackinaw River | 18.6 | 19 |
| Little Marys River | 24.1 | 24 |
| Little Menominee River | 8.7 | 9 |
| Little Missouri Creek | 15 | 15 |
| Little Mud Creek (Mud Creek (Kaskaskia River tributary)) | 15.4 | 15 |
| Little Mud Creek (Mud Creek (Sugar Creek (Iroquois River tributary))) | 12 | 12 |
| Little Muddy Creek | 32.4 | 32 |
| Little Muddy River | 72.9 | 92 |
| Little Piasa Creek | 13.3 | 13 |
| Little Richard Creek | 21.8 | 39 |
| Little Rock Creek | 31.2 | 31 |
| Littlers Creek | 22 | 22 |
| Little Rush Creek | 12.8 | 13 |
| Little Saline River | 16.6 | 17 |
| Little Salt Creek | 15.4 | 15 |
| Little Sandy Creek (Big Sandy Creek tributary) | 15.9 | 16 |
| Little Sandy Creek (Sandy Creek tributary) | 12.9 | 13 |
| Little Silver Creek | 11.4 | 11 |
| Little Silver Creek | 15.7 | 16 |
| Little Vermilion River (Illinois River tributary) | 34.7 | 35 |
| Little Vermilion River (Wabash River tributary) | 39.1 | 39 |
| Little Wabash River | 239.5 | 838 |
| Little Wabash River - West Branch | 11.6 | 12 |
| Lone Tree Creek | 15.1 | 15 |
| Long Point Creek (Kickapoo Creek (Salt Creek (Sangamon River tributary))) | 15.8 | 16 |
| Long Point Creek (Vermilion River (Illinois River tributary)) | 28.4 | 46 |
| Lost Creek | 25.8 | 48 |
| Lower Cache River | 38 | 100 |
| Lusk Creek | 32.1 | 32 |
| Mackinaw River | 129.7 | 370 |
| Macoupin Creek | 99.8 | 303 |
| Madden Creek | 17.1 | 17 |
| Marrowbone Creek | 15.4 | 15 |
| Marys River | 42.3 | 66 |
| Massac Creek | 16.5 | 17 |
| Masters Fork | 21.1 | 21 |
| Mauvaise Terre Creek | 49.8 | 65 |
| Mauvaise Terre Creek - North Fork | 15 | 15 |
| Mazon River | 28.2 | 178 |
| Mazon River - East Fork | 8.7 | 9 |
| Mazon River - West Fork | 33.5 | 60 |
| McCraney Creek | 15.8 | 16 |
| McCraney Diversion Ditch | 3.8 | 20 |
| McKee Creek | 73.3 | 112 |
| McKee Creek - Middle Fork | 19.5 | 20 |
| McKee Creek - South Fork | 19.4 | 39 |
| Menominee River (Mississippi River tributary) | 6.5 | 7 |
| Middle Aux Sable Creek | 12 | 12 |
| Middle Henderson Creek | 16 | 16 |
| Mill Creek | 17.3 | 17 |
| Mill Creek (Fox River (Illinois River tributary)) | 15.2 | 15 |
| Mill Creek (Mississippi River tributary) | 23.9 | 39 |
| Mill Creek (Rock River tributary) | 22.6 | 23 |
| Mill Creek (Rock River tributary) | 16.7 | 17 |
| Mill Creek (Wabash River tributary) | 36.6 | 37 |
| Mississippi River | 592 | 15,762 |
| Missouri Creek | 27.5 | 43 |
| Mitchell Creek | 22 | 22 |
| Mole Creek | 17.8 | 18 |
| Money Creek | 35.8 | 36 |
| Mosquito Creek | 22.6 | 23 |
| Mud Creek (Green River tributary) | 28.4 | 28 |
| Mud Creek (Kaskaskia River tributary) | 38.7 | 54 |
| Mud Creek (Mackinaw River tributary) | 19.4 | 19 |
| Mud Creek (Sugar Creek (Iroquois River tributary)) | 17.5 | 82 |
| Mud Creek (Vermilion River (Illinois River tributary)) | 22.8 | 23 |
| Muddy Creek (Embarras River tributary) | 31 | 64 |
| Muddy Creek (Embarras River tributary) | 16 | 32 |
| Muddy Creek (Willow Creek (Embarras River - North Fork tributary)) | 15.6 | 16 |
| Nassa Creek | 17.7 | 18 |
| Nettle Creek | 24.9 | 39 |
| Nettle Creek - East Fork | 13.8 | 14 |
| Ninemile Creek | 18.4 | 18 |
| Nippersink Creek | 20.1 | 30 |
| Nippersink Creek - North Branch | 10.1 | 10 |
| North Henderson Creek | 33.5 | 34 |
| North Kinnikinnick Creek | 15.3 | 15 |
| North Little Sandy Creek | 15.9 | 16 |
| North Pope Creek | 13.8 | 14 |
| North Shore Channel | 7.7 | 8 |
| Ohio River | 131 | 2,885 |
| Otter Creek - East Fork (Hodges Creek tributary) | 14.6 | 15 |
| Otter Creek (Hodges Creek tributary) | 18 | 78 |
| Otter Creek (Illinois River tributary) | 23.4 | 23 |
| Otter Creek (Illinois River tributary) | 31.7 | 32 |
| Otter Creek - North Branch (Sugar River tributary) | 11.4 | 11 |
| Otter Creek (Rock Creek (Rock River tributary)) | 15.3 | 15 |
| Otter Creek - South Branch (Sugar River tributary) | 11.6 | 12 |
| Otter Creek (Sugar River tributary) | 6.4 | 29 |
| Otter Creek (Vermilion River (Illinois River tributary)) | 21.5 | 22 |
| Otter Creek - West Fork (Hodges Creek tributary) | 12.4 | 12 |
| Owens Creek | 16.4 | 16 |
| Paddock Creek | 19 | 19 |
| Panther Creek | 26.5 | 55 |
| Panther Creek - East Branch | 13.3 | 13 |
| Panther Creek - West Branch | 15.6 | 16 |
| Pecatonica River | 93.7 | 266 |
| Phils Creek | 16.7 | 17 |
| Piasa Creek | 29.7 | 43 |
| Pigeon Creek | 15.1 | 15 |
| Pike Creek (Big Bureau Creek tributary) | 21.1 | 21 |
| Pike Creek (Iroquois River tributary) | 18.3 | 18 |
| Pike Creek (Trim Creek tributary) | 15.1 | 15 |
| Pine Creek | 22.5 | 23 |
| Piscasaw Creek | 27.5 | 28 |
| Plum Creek | 32.7 | 33 |
| Plum River | 46.6 | 104 |
| Polecat Creek | 19.1 | 19 |
| Pond Creek | 23.5 | 24 |
| Pope Creek | 58.4 | 72 |
| Poplar Creek | 17.5 | 18 |
| Post Creek Cutoff | 5.3 | 129 |
| Prairie Creek (Indian Creek (Illinois River tributary)) | 15.7 | 16 |
| Prairie Creek (Iroquois River tributary) | 10.7 | 11 |
| Prairie Creek (Kankakee River tributary) | 24.9 | 25 |
| Prairie Creek (Lost Creek tributary) | 21.8 | 22 |
| Prairie Creek (Mackinaw River tributary) | 15.1 | 15 |
| Prairie Creek (Richland Creek (Sangamon River tributary)) | 16.6 | 17 |
| Prairie Creek (Sugar Creek (Salt Creek tributary)) | 20.7 | 21 |
| Prairie Creek (Vermilion River (Illinois River tributary)) | 20.2 | 20 |
| Prairie du Long Creek | 26.4 | 26 |
| Prairie duPont Creek | 20.5 | 21 |
| Put Creek | 21.3 | 38 |
| Raccoon Creek (Crooked Creek (Kaskaskia River tributary)) | 20.3 | 20 |
| Raccoon Creek (Elm River tributary) | 23.7 | 24 |
| Raccoon Creek (Pecatonica River tributary) | 9 | 9 |
| Raccoon Creek (Wabash River tributary) | 21.2 | 21 |
| Ramsey Creek | 31.3 | 31 |
| Ramsey Creek | 12.1 | 33 |
| Range Creek | 24 | 24 |
| Rayse Creek | 27.4 | 27 |
| Rector Creek | 19.7 | 20 |
| Reese Creek | 18.8 | 19 |
| Richland Creek (Kaskaskia River tributary) | 39.5 | 84 |
| Richland Creek (Kaskaskia River tributary) | 27.6 | 28 |
| Richland Creek (Sangamon River tributary) | 19.3 | 36 |
| Richland Creek - West Fork (Kaskaskia River tributary) | 18.3 | 18 |
| Riley Creek | 15.4 | 15 |
| Robinson Creek | 30.9 | 31 |
| Rock Creek (Kankakee River tributary) | 24.7 | 45 |
| Rock Creek (Mackinaw River tributary) | 18.1 | 18 |
| Rock Creek (Rock River tributary) | 52.8 | 68 |
| Rock Creek - South Branch (Kankakee River tributary) | 19.8 | 20 |
| Rock River | 165.1 | 1,309 |
| Rock Run | 22.7 | 23 |
| Rooks Creek | 34.2 | 34 |
| Rush Creek (Kishwaukee River tributary) | 15.5 | 16 |
| Rush Creek (Mississippi River tributary) | 30.6 | 43 |
| Saline River | 27.3 | 263 |
| Saline River - Middle Fork | 24.9 | 41 |
| Saline River - North Fork | 33.7 | 88 |
| Saline River - South Fork | 49.3 | 90 |
| Salt Creek (Des Plaines River tributary) | 43.7 | 44 |
| Salt Creek (Little Wabash River tributary) | 18.5 | 34 |
| Salt Creek (Sangamon River tributary) | 114.7 | 465 |
| Salt Fork (Crabapple Creek tributary) | 15.3 | 15 |
| Salt Fork (Vermilion River (Wabash River tributary)) | 47 | 63 |
| Sand Creek | 15.2 | 15 |
| Sandy Creek | 30.2 | 43 |
| Sangamon River | 246.8 | 1,341 |
| Sangamon River - South Fork | 87.8 | 341 |
| Scattering Fork | 13.7 | 33 |
| Scattering Point Creek | 18.5 | 19 |
| Senachwine Creek (Illinois River tributary) | 21 | 21 |
| Senachwine Creek (Illinois River tributary) | 29.1 | 29 |
| Sevenmile Creek | 17.4 | 17 |
| Sexton Creek | 12.2 | 41 |
| Shaw Creek | 15.5 | 16 |
| Shoal Creek | 81.8 | 257 |
| Shoal Creek - East Fork | 61.3 | 61 |
| Shoal Creek - Middle Fork | 25.1 | 25 |
| Shoal Creek - West Fork | 29.5 | 30 |
| Short Point Creek | 17.5 | 36 |
| Silver Creek | 87.2 | 163 |
| Silver Creek - East Fork | 29.6 | 60 |
| Sinsinawa River | 10.7 | 11 |
| Sixmile Creek | 16.5 | 17 |
| Skillet Fork | 97.8 | 216 |
| Skokie River | 19.7 | 20 |
| Slater Creek | 15.8 | 16 |
| Smallpox Creek | 16.1 | 16 |
| Snag Creek | 28.3 | 28 |
| Solomon Creek | 15.5 | 16 |
| Somonauk Creek | 35.8 | 36 |
| South Edwards River | 19.2 | 19 |
| South Henderson Creek (Henderson Creek tributary) | 13.6 | 14 |
| South Henderson Creek (Henderson Creek tributary) | 27.9 | 28 |
| South Kinnikinnick Creek | 14.4 | 14 |
| Spafford Creek | 8.3 | 8 |
| Spoon River | 147.2 | 514 |
| Spoon River - East Fork | 23.6 | 24 |
| Spoon River - West Fork | 22.5 | 23 |
| Spring Creek (Green River tributary) | 20.2 | 20 |
| Spring Creek (Hickory Creek (Des Plaines River tributary)) | 15.8 | 16 |
| Spring Creek (Illinois River tributary) | 26 | 26 |
| Spring Creek (Iroquois River tributary) | 63.9 | 64 |
| Spring Creek (Sangamon River tributary) | 37.2 | 37 |
| Spring Point Creek | 14.9 | 15 |
| Stevens Creek | 20.3 | 20 |
| Stillman Creek | 18 | 18 |
| Stoney Creek | 22 | 22 |
| Stony Creek | 16 | 16 |
| Sugar Creek (Illinois River tributary) | 42.4 | 42 |
| Sugar Creek (Iroquois River tributary) | 38.8 | 138 |
| Sugar Creek (Kaskaskia River tributary) | 41.6 | 42 |
| Sugar Creek - Middle Fork (Salt Creek tributary) | 29.8 | 58 |
| Sugar Creek (Saline River - South Fork tributary) | 23.9 | 24 |
| Sugar Creek (Salt Creek (Sangamon River tributary)) | 58.5 | 153 |
| Sugar Creek (Sangamon River - South Fork tributary) | 52.8 | 98 |
| Sugar Creek (Wabash River tributary) | 25.2 | 25 |
| Sugar Creek - West Fork (Salt Creek tributary) | 27.7 | 28 |
| Sugar Fork | 18.6 | 19 |
| Sugar River | 10.6 | 40 |
| Swan Creek | 30.8 | 31 |
| Swanwick Creek | 20.7 | 21 |
| Taylor Creek | 22.9 | 23 |
| Tenmile Creek | 18.9 | 19 |
| The Slough | 15.7 | 16 |
| Thorn Creek | 20.8 | 55 |
| Threemile Branch | 22.2 | 22 |
| Timber Creek | 15.8 | 16 |
| Trevor Creek | 14.3 | 14 |
| Trim Creek | 22 | 37 |
| Troublesome Creek | 25.6 | 26 |
| Turkey Creek | 16.3 | 16 |
| Turtle Creek (Rock River tributary) | 1.8 | 2 |
| Tyler Creek | 16.4 | 16 |
| Upper Cache River | 54.1 | 124 |
| Vermilion River (Illinois River tributary) | 74.7 | 386 |
| Vermilion River - Middle Fork (Wabash River tributary) | 48.2 | 48 |
| Vermilion River - North Fork (Illinois River tributary) | 37 | 53 |
| Vermilion River - North Fork - Middle Branch (Wabash River tributary) | 18.1 | 26 |
| Vermilion River - North Fork (Wabash River tributary) | 49.9 | 75 |
| Vermilion River - South Fork (Illinois River tributary) | 28 | 58 |
| Vermilion River (Wabash River tributary) | 17.9 | 227 |
| Wabash River | 189.6 | 2,224 |
| Walnut Creek (Illinois River tributary) | 22.4 | 22 |
| Walnut Creek (Mackinaw River tributary) | 25.2 | 25 |
| Walnut Creek (Spoon River tributary) | 35.8 | 36 |
| Waupecan Creek | 30.2 | 46 |
| Welch Creek | 16.7 | 17 |
| West Aux Sable Creek | 14.8 | 15 |
| West Bureau Creek | 23.7 | 24 |
| West Crooked Creek | 14.1 | 14 |
| West Okaw River | 32.2 | 48 |
| Whisky Creek | 16.5 | 17 |
| Whitley Creek | 15.5 | 16 |
| Williams Creek | 20.1 | 20 |
| Willow Creek (Embarras River - North Fork tributary) | 30.1 | 46 |
| Willow Creek (Green River tributary) | 18 | 18 |
| Wolf Creek (Big Creek (Kaskaskia River tributary)) | 25.1 | 25 |
| Wolf Creek (Vermilion River (Illinois River tributary)) | 19.1 | 19 |
| Wood River | 2.5 | 41 |
| Wood River - East Fork | 21.9 | 22 |
| Wood River - West Fork | 16.6 | 17 |
| Yellow Creek | 51.9 | 52 |
