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Best channel catfish lakes in Iowa

186 Iowa waters hold channel catfish, 175 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. Scent-driven bottom feeder. Holes, channels and inflows — best after dark.

1. Iowa River — 8 ft max · Walleye, Channel Catfish, Flathead Catfish, Freshwater DrumWhy #1: mapped size signal; contours are approximated · 25 public access sites
2. Des Moines River — 11 ft max · Walleye, White Bass, Channel Catfish, Flathead CatfishWhy #2: mapped size signal; contours are approximated · 18 public access sites
3. Cedar River — 10 ft max · Smallmouth Bass, Walleye, Channel Catfish, Flathead CatfishWhy #3: mapped size signal; contours are approximated · 23 public access sites
4. Mississippi River Pool 19 (Keokuk) — 43 ft max · survey depth data · Largemouth Bass, Walleye, White Bass, SaugerWhy #4: survey-backed contours receive the ranking's data-quality boost · 3 public access sites
5. Rathbun Lake — 48 ft max · Walleye, Crappie, Channel CatfishWhy #5: mapped size signal; contours are approximated · no verified access record attached
6. Mississippi River Pool 13 (Clinton) — 53 ft max · survey depth data · Largemouth Bass, Walleye, White Bass, SaugerWhy #6: survey-backed contours receive the ranking's data-quality boost · 4 public access sites
7. Wapsipinicon River — 10 ft max · Smallmouth Bass, Walleye, Channel Catfish, Common CarpWhy #7: mapped size signal; contours are approximated · 11 public access sites
8. Clear Lake — 22 ft max · survey depth data · Walleye, Crappie, Bluegill, Channel CatfishWhy #8: survey-backed contours receive the ranking's data-quality boost · 2 public access sites
9. DeSoto Bend at DeSoto National Wildlife Refuge — 18 ft max · survey depth data · Largemouth Bass, Walleye, Crappie, BluegillWhy #9: survey-backed contours receive the ranking's data-quality boost · 2 public access sites
10. Desoto Bend — 24 ft max · survey depth data · Largemouth Bass, Walleye, White Bass, CrappieWhy #10: survey-backed contours receive the ranking's data-quality boost · 1 public access site
11. Storm Lake (incl Little Storm Lake) — 17 ft max · survey depth data · Walleye, White Bass, Crappie, Channel CatfishWhy #11: survey-backed contours receive the ranking's data-quality boost · 2 public access sites
12. Five Island Lake — 22 ft max · survey depth data · Largemouth Bass, Smallmouth Bass, Walleye, White BassWhy #12: survey-backed contours receive the ranking's data-quality boost · 4 public access sites
13. Three Mile Lake — 48 ft max · survey depth data · Largemouth Bass, Walleye, Crappie, BluegillWhy #13: survey-backed contours receive the ranking's data-quality boost · 3 public access sites
14. Twelve Mile Creek Lake — 40 ft max · survey depth data · Largemouth Bass, Walleye, Crappie, BluegillWhy #14: survey-backed contours receive the ranking's data-quality boost · 3 public access sites
15. Lake Macbride — 45 ft max · survey depth data · Largemouth Bass, Walleye, Crappie, BluegillWhy #15: survey-backed contours receive the ranking's data-quality boost · 10 public access sites
16. Brushy Creek Lake — 72 ft max · survey depth data · Largemouth Bass, Walleye, Crappie, BluegillWhy #16: survey-backed contours receive the ranking's data-quality boost · 8 public access sites
17. Rice Lake — 10 ft max · survey depth data · Largemouth Bass, Crappie, Bluegill, Channel CatfishWhy #17: survey-backed contours receive the ranking's data-quality boost · 3 public access sites
18. Lake Icaria — 24 ft max · survey depth data · Largemouth Bass, Walleye, Crappie, BluegillWhy #18: survey-backed contours receive the ranking's data-quality boost · 3 public access sites
19. Lake Sugema — 24 ft max · survey depth data · Largemouth Bass, Walleye, Crappie, BluegillWhy #19: survey-backed contours receive the ranking's data-quality boost · 4 public access sites
20. Black Hawk Lake — 20 ft max · survey depth data · Largemouth Bass, Walleye, White Bass, CrappieWhy #20: survey-backed contours receive the ranking's data-quality boost · 3 public access sites
21. Upper Iowa River — 6 ft max · Smallmouth Bass, Walleye, Channel Catfish, Rainbow TroutWhy #21: mapped size signal; contours are approximated · 1 public access site
22. Trumbull Lake — 4 ft max · survey depth data · Largemouth Bass, Crappie, Bluegill, Channel CatfishWhy #22: survey-backed contours receive the ranking's data-quality boost · 5 public access sites
23. Snyder Bend Lake — 11 ft max · survey depth data · Largemouth Bass, Crappie, Bluegill, Channel CatfishWhy #23: survey-backed contours receive the ranking's data-quality boost · 1 public access site
24. Rock Creek Lake — 16 ft max · survey depth data · Largemouth Bass, Walleye, Crappie, BluegillWhy #24: survey-backed contours receive the ranking's data-quality boost · 2 public access sites
25. Green Valley Lake — 22 ft max · survey depth data · Largemouth Bass, Smallmouth Bass, Walleye, White BassWhy #25: survey-backed contours receive the ranking's data-quality boost · no verified access record attached

…plus 161 more Iowa waters holding channel catfish.

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When to fish channel catfish in Iowa

• Spring 3–12 ft — Warm inflows and shallow mud flats after rain.
• Summer 8–25 ft — Deep holes by day; cats roam shallow flats to feed at night.
• Fall 10–30 ft — Fish concentrate in river/creek channels and deeper holes.
• Winter 20–40 ft — Stacked in the deepest holes; slow natural baits.

Also in Iowa: best largemouth bass lakes · best smallmouth bass lakes · best walleye lakes · best white bass lakes · best northern pike lakes · best crappie lakes · best bluegill lakes · best muskellunge lakes · best yellow perch lakes · best flathead catfish lakes · best freshwater drum lakes · best common carp lakes

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