Best flathead catfish lakes in Missouri
12 Missouri waters list flathead catfish (official records or labelled estimates), 2 mapped with survey or official-chart depth data. Ranked below by size and depth-data quality, leading with the waters in our reviewed search catalog — open any water to see exactly where to fish it: depth contours, scored spots with plain-English reasons, seasonal windows and bait picks. Solitary giant that lairs in log jams and deep holes by day and prowls at night — live bait only.
- Lake of the Ozarks — 130 ft max · Largemouth Bass, Walleye, Crappie, BluegillWhy #1: mapped size signal; contours are approximated · 6 public access sites
- Harry S. Truman Reservoir — 90 ft max · Largemouth Bass, Walleye, Crappie, Channel CatfishWhy #2: mapped size signal; contours are approximated · 1 public access site
- Gasconade River — 12 ft max · Largemouth Bass, Smallmouth Bass, Walleye, Channel CatfishWhy #3: mapped size signal; contours are approximated · 15 public access sites
- Stockton Lake — 100 ft max · Largemouth Bass, Smallmouth Bass, Walleye, CrappieWhy #4: mapped size signal; contours are approximated · 6 public access sites
- Mark Twain Lake — 70 ft max · Largemouth Bass, Walleye, Crappie, BluegillWhy #5: mapped size signal; contours are approximated · 18 public access sites
- Meramec River — 12 ft max · Largemouth Bass, Smallmouth Bass, Channel Catfish, Rainbow TroutWhy #6: mapped size signal; contours are approximated · 15 public access sites
- Missouri River — 40 ft max · Sauger, Channel Catfish, Flathead Catfish, Blue CatfishWhy #7: mapped size signal; contours are approximated · 8 public access sites
- Osage River — 30 ft max · Walleye, White Bass, Crappie, Channel CatfishWhy #8: mapped size signal; contours are approximated · 7 public access sites
- Wappapello Lake — 35 ft max · Largemouth Bass, Crappie, Bluegill, Channel CatfishWhy #9: mapped size signal; contours are approximated · 8 public access sites
- Clearwater Lake — 43 ft max · real survey depth contours · Largemouth Bass, Crappie, Bluegill, Channel CatfishWhy #10: survey-backed contours receive the ranking's data-quality boost · 8 public access sites
- Harrison County Lake — 24 ft max · real survey depth contours · Largemouth Bass, Walleye, Crappie, BluegillWhy #11: survey-backed contours receive the ranking's data-quality boost · no verified access record attached
…plus 1 more Missouri waters holding flathead catfish.
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How to use this ranking
The order is a map-planning ranking, not a claim about today's fish population. It favors larger mapped waters and gives survey-backed contours a three-times data-quality boost. Agency population surveys, current regulations, access and recent conditions should make the final decision.
Compare maximum depth across 37,233 lake records · See Missouri waters with public access data
When to fish flathead catfish in Missouri
- Spring 5–20 ft — Pre-spawn fish feed hard near wood cover and hole edges.
- Summer 8–30 ft — Day = log-jam lairs and deep holes. Night = shallow flats and bar edges with big live bait.
- Fall 10–35 ft — Fish concentrate near wintering holes — the year's best big-fish window.
- Winter 20–45 ft — Stacked and sluggish in the deepest holes.
Also in Missouri: best largemouth bass lakes · best smallmouth bass lakes · best walleye lakes · best white bass lakes · best crappie lakes · best bluegill lakes · best channel catfish lakes · best rainbow trout lakes · best white bass & hybrids lakes · best blue catfish lakes · best freshwater drum lakes · best common carp lakes · best longnose gar lakes · best brown trout lakes
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