Illinois River

Illinois River is 335 km long, and has a stream level of 1.

Map of Illinois River

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Distributaries / Outflows

It has 3 side channels.

Illinois River flows into Mississippi River , which it joins at N 38° 57′ 51″, W 90° 25′ 25″ at OSM node n311934925, and there 163,363 km of total upstream flows in.

Tributaries

Illinois River has 60 tributaries.

Spoon River, which joins it at N 40° 18′ 24″, W 90° 4′ 6″ at OSM node n1359391635, and 4,503 km of total upstream flows in.

Mackinaw River, which joins it at N 40° 33′ 11″, W 89° 43′ 51″ at OSM node n9488501644, and 1,977 km of total upstream flows in.

Sangamon River, which joins it at N 40° 1′ 25″, W 90° 26′ 0″ at OSM node n1004583140, and 1,870 km of total upstream flows in.

Kankakee River, which joins it at N 41° 23′ 39″, W 88° 15′ 38″ at OSM node n339928001, and 1,484 km of total upstream flows in.

Fox River, which joins it at N 41° 20′ 32″, W 88° 50′ 26″ at OSM node n339930551, and 1,389 km of total upstream flows in.

(unnamed), which joins it at N 41° 8′ 33″, W 89° 19′ 52″ at OSM node n12200063346, and 1,365 km of total upstream flows in.

La Moine River, which joins it at N 39° 59′ 16″, W 90° 30′ 48″ at OSM node n5406424962, and 1,268 km of total upstream flows in.

Des Plaines River, which joins it at N 41° 23′ 39″, W 88° 15′ 38″ at OSM node n339928001, and 861 km of total upstream flows in.

Vermilion River, which joins it at N 41° 19′ 14″, W 89° 4′ 4″ at OSM node n339930564, and 425 km of total upstream flows in.

Senachwine Creek, which joins it at N 40° 55′ 29″, W 89° 27′ 56″ at OSM node n339933275, and 349 km of total upstream flows in.

Sugar Creek, which joins it at N 40° 5′ 18″, W 90° 23′ 36″ at OSM node n12220732358, and 349 km of total upstream flows in.

Aux Sable Creek, which joins it at N 41° 22′ 45″, W 88° 20′ 18″ at OSM node n2775262651, and 254 km of total upstream flows in.

(unnamed), which joins it at N 40° 52′ 30″, W 89° 29′ 52″ at OSM node n12220444221, and 224 km of total upstream flows in.

Little Vermilion River, which joins it at N 41° 19′ 27″, W 89° 4′ 49″ at OSM node n4293910327, and 216 km of total upstream flows in.

Covel Creek, which joins it at N 41° 19′ 15″, W 88° 53′ 38″ at OSM node n4306958565, and 213 km of total upstream flows in.

Copperas Creek, which joins it at N 40° 29′ 6″, W 89° 53′ 12″ at OSM node n1359387459, and 199 km of total upstream flows in.

Farm Creek, which joins it at N 40° 41′ 30″, W 89° 34′ 42″ at OSM node n8513846714, and 180 km of total upstream flows in.

Macoupin Creek, which joins it at N 39° 10′ 41″, W 90° 36′ 9″ at OSM node n1476421799, and 151 km of total upstream flows in.

Lamarsh Creek, which joins it at N 40° 33′ 42″, W 89° 41′ 57″ at OSM node n11196348348, and 96 km of total upstream flows in.

Partridge Creek, which joins it at N 40° 51′ 49″, W 89° 30′ 29″ at OSM node n1359377436, and 92 km of total upstream flows in.

Spring Creek, which joins it at N 41° 18′ 40″, W 89° 11′ 43″ at OSM node n11225229451, and 91 km of total upstream flows in.

Mauvaise Terre Creek, which joins it at N 39° 43′ 34″, W 90° 37′ 55″ at OSM node n12453119471, and 84 km of total upstream flows in.

Nettle Creek, which joins it at N 41° 21′ 5″, W 88° 26′ 2″ at OSM node n9027392099, and 61 km of total upstream flows in.

Tenmile Creek, which joins it at N 40° 43′ 32″, W 89° 32′ 52″ at OSM node n1752075224, and 60 km of total upstream flows in.

Lost Creek, which joins it at N 40° 33′ 11″, W 89° 40′ 41″ at OSM node n1359387453, and 57 km of total upstream flows in.

Thenius Creek, which joins it at N 41° 2′ 9″, W 89° 24′ 56″ at OSM node n11225233652, and 54 km of total upstream flows in.

Lick Creek, which joins it at N 40° 37′ 5″, W 89° 38′ 30″ at OSM node n11196343569, and 52 km of total upstream flows in.

Negro Creek, which joins it at N 41° 19′ 15″, W 89° 16′ 12″ at OSM node n11225229474, and 47 km of total upstream flows in.

Coffee Creek, which joins it at N 41° 14′ 54″, W 89° 21′ 5″ at OSM node n11225225785, and 42 km of total upstream flows in.

Blue Creek, which joins it at N 40° 49′ 18″, W 89° 32′ 55″ at OSM node n11196339289, and 39 km of total upstream flows in.

Elm Creek, which joins it at N 40° 9′ 0″, W 90° 16′ 43″ at OSM node n12200003136, and 36 km of total upstream flows in.

Dickison Run, which joins it at N 40° 49′ 18″, W 89° 32′ 55″ at OSM node n11196339289, and 35 km of total upstream flows in.

Gimlet Creek, which joins it at N 41° 1′ 31″, W 89° 25′ 1″ at OSM node n11225218559, and 24 km of total upstream flows in.

(unnamed), which joins it at N 41° 19′ 38″, W 88° 59′ 57″ at OSM node n977061854, and 19 km of total upstream flows in.

Funks Run, which joins it at N 40° 46′ 37″, W 89° 33′ 23″ at OSM node n11196369734, and 16 km of total upstream flows in.

Friddle Branch, which joins it at N 40° 6′ 25″, W 90° 22′ 57″ at OSM node n12200003119, and 15 km of total upstream flows in.

Dutchmans Creek, which joins it at N 40° 7′ 28″, W 90° 22′ 0″ at OSM node n12200003126, and 14 km of total upstream flows in.

(unnamed), which joins it at N 40° 7′ 45″, W 90° 20′ 42″ at OSM node n12200003128, and 13 km of total upstream flows in.

(unnamed), which joins it at N 40° 37′ 20″, W 89° 38′ 12″ at OSM node n11196343572, and 12 km of total upstream flows in.

(unnamed), which joins it at N 40° 7′ 31″, W 90° 21′ 42″ at OSM node n12200003127, and 8 km of total upstream flows in.

(unnamed), which joins it at N 40° 8′ 22″, W 90° 19′ 6″ at OSM node n12200003134, and 7 km of total upstream flows in.

Old Macoupin Creek, which joins it at N 39° 7′ 6″, W 90° 36′ 13″ at OSM node n263548736, and 6 km of total upstream flows in.

(unnamed), which joins it at N 40° 46′ 12″, W 89° 33′ 14″ at OSM node n11196369733, and 5 km of total upstream flows in.

(unnamed), which joins it at N 40° 3′ 43″, W 90° 25′ 36″ at OSM node n490341686, and 4 km of total upstream flows in.

(unnamed), which joins it at N 40° 46′ 5″, W 89° 33′ 12″ at OSM node n11196369732, and 4 km of total upstream flows in.

(unnamed), which joins it at N 38° 58′ 7″, W 90° 27′ 28″ at OSM node n1290713980, and 3 km of total upstream flows in.

(unnamed), which joins it at N 40° 7′ 8″, W 90° 22′ 33″ at OSM node n12200003120, and 3 km of total upstream flows in.

(unnamed), which joins it at N 41° 19′ 19″, W 89° 6′ 52″ at OSM node n977897046, and 2 km of total upstream flows in.

(unnamed), which joins it at N 40° 33′ 7″, W 89° 45′ 29″ at OSM node n490107322, and 2 km of total upstream flows in.

Devil's Creek, which joins it at N 40° 43′ 27″, W 89° 32′ 50″ at OSM node n11196366267, and 2 km of total upstream flows in.

(unnamed), which joins it at N 40° 45′ 29″, W 89° 33′ 4″ at OSM node n11196369731, and 1 km of total upstream flows in.

(unnamed), which joins it at N 41° 19′ 39″, W 89° 0′ 35″ at OSM node n977061861, and 1 km of total upstream flows in.

(unnamed), which joins it at N 40° 7′ 24″, W 90° 22′ 13″ at OSM node n12200003125, and 1 km of total upstream flows in.

(unnamed), which joins it at N 40° 33′ 14″, W 89° 40′ 30″ at OSM node n385884382, and 1 km of total upstream flows in.

(unnamed), which joins it at N 40° 49′ 24″, W 89° 32′ 53″ at OSM node n1359377438, and 788 m of total upstream flows in.

(unnamed), which joins it at N 40° 36′ 53″, W 89° 38′ 44″ at OSM node n11196343565, and 738 m of total upstream flows in.

(unnamed), which joins it at N 40° 36′ 58″, W 89° 38′ 38″ at OSM node n11196343567, and 445 m of total upstream flows in.

Dry Run, which joins it at N 40° 32′ 36″, W 89° 48′ 10″ at OSM node n1359387390, and 56 m of total upstream flows in.

(unnamed), which joins it at N 40° 8′ 18″, W 90° 19′ 49″ at OSM node n12200003129, and 55 m of total upstream flows in.

(unnamed), which joins it at N 40° 8′ 23″, W 90° 19′ 24″ at OSM node n12200003132, and 41 m of total upstream flows in.