Best blue catfish lakes in Illinois
5 Illinois waters hold blue catfish, 3 mapped with real state-agency depth surveys. Ranked below by size and depth-data quality — open any water to see exactly where to fish it: depth contours, scored spots with plain-English reasons, seasonal windows and bait picks. Open-water giant of big rivers and reservoirs; follows shad schools and feeds in current year-round.
- Illinois River — 25 ft max · Largemouth Bass, Walleye, White Bass, Sauger
- Kaskaskia River — 15 ft max · Largemouth Bass, White Bass, Crappie, Channel Catfish
- Illinois Waterway — Dresden Island Pool — 31 ft max · survey depth data · Largemouth Bass, Smallmouth Bass, Walleye, White Bass
- Vermont Lake — 10 ft max · survey depth data · Largemouth Bass, Crappie, Bluegill, Channel Catfish
- Illinois Waterway — Brandon Road Pool — 25 ft max · survey depth data · Largemouth Bass, Smallmouth Bass, White Bass, Sauger
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When to fish blue catfish in Illinois
- Spring 5–25 ft — High water is your friend — fish current seams and flooded flats.
- Summer 10–40 ft — Drift cut bait across channel edges and deep flats.
- Fall 15–45 ft — Blues shadow massive shad schools — find bait on the graph first.
- Winter 20–50 ft — The trophy season: anchor on deep holes packed with wintering shad.
Also in Illinois: best largemouth bass lakes · best smallmouth bass lakes · best walleye lakes · best white bass lakes · best saugeye lakes · best sauger lakes · best northern pike lakes · best crappie lakes · best bluegill lakes · best channel catfish lakes · best muskellunge lakes · best white bass & hybrids lakes · best flathead catfish lakes · best freshwater drum lakes · best common carp lakes
Blue Catfish elsewhere: Indiana · Ohio · Texas · Kentucky · Kansas · Oklahoma · Tennessee · Missouri · Georgia