Best flathead catfish lakes in Ohio
11 Ohio waters hold flathead catfish, 6 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. Solitary giant that lairs in log jams and deep holes by day and prowls at night — live bait only.
- Great Miami River — 15 ft max · Largemouth Bass, Smallmouth Bass, Channel Catfish, Flathead CatfishWhy #1: mapped size signal; contours are approximated · 52 public access sites, 49 carry-in or shore-oriented
- Ohio River — Markland Pool — 80 ft max · survey depth data · Largemouth Bass, Smallmouth Bass, Sauger, CrappieWhy #2: survey-backed contours receive the ranking's data-quality boost · 13 public access sites
- Ohio River — Meldahl Pool — 57 ft max · survey depth data · Largemouth Bass, Smallmouth Bass, Sauger, CrappieWhy #3: survey-backed contours receive the ranking's data-quality boost · 10 public access sites, 1 carry-in or shore-oriented
- Ohio River — Greenup Pool — 50 ft max · survey depth data · Largemouth Bass, Smallmouth Bass, Sauger, CrappieWhy #4: survey-backed contours receive the ranking's data-quality boost · 7 public access sites
- Muskingum River — 30 ft max · Largemouth Bass, Smallmouth Bass, Saugeye, Channel CatfishWhy #5: mapped size signal; contours are approximated · 26 public access sites, 9 carry-in or shore-oriented
- Seneca Lake — 22 ft max · survey depth data · Largemouth Bass, Saugeye, Crappie, BluegillWhy #6: survey-backed contours receive the ranking's data-quality boost · 2 public access sites
- Indian Lake — 13 ft max · survey depth data · Largemouth Bass, White Bass, Saugeye, CrappieWhy #7: survey-backed contours receive the ranking's data-quality boost · 6 public access sites, 2 carry-in or shore-oriented
- Scioto River — 25 ft max · Largemouth Bass, Smallmouth Bass, Saugeye, Channel CatfishWhy #8: mapped size signal; contours are approximated · 12 public access sites, 8 carry-in or shore-oriented
- Dillon Lake — 32 ft max · survey depth data · Largemouth Bass, Saugeye, Crappie, BluegillWhy #9: survey-backed contours receive the ranking's data-quality boost · 5 public access sites, 2 carry-in or shore-oriented
- Ohio River — Pike Island Pool — 40 ft max · Largemouth Bass, Smallmouth Bass, Sauger, CrappieWhy #10: mapped size signal; contours are approximated · 5 public access sites
- Ohio River — New Cumberland Pool — 40 ft max · Largemouth Bass, Smallmouth Bass, Sauger, CrappieWhy #11: mapped size signal; contours are approximated · 2 public access sites
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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 Ohio waters with public access data
When to fish flathead catfish in Ohio
- 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 Ohio: best largemouth bass lakes · best smallmouth bass lakes · best walleye lakes · best saugeye lakes · best sauger lakes · best crappie lakes · best bluegill lakes · best channel catfish lakes · best muskellunge lakes · best white bass & hybrids lakes · best yellow perch lakes · best blue catfish lakes · best freshwater drum lakes · best common carp lakes · best steelhead lakes · best rock bass lakes
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