The largest catfish species in Michigan, Flathead Catfish can exceed 50 lbs and are found in major river systems. Unlike Channel Catfish, Flatheads strongly prefer live prey and are a challenging trophy target.
Michigan requires a minimum length of 15" to keep. The daily bag limit is 5.
🌿 Flathead Catfish Habitat & Behavior
Deep, slow-moving pools in large rivers. Hide under logs, undercut banks, and deep channel structure. Found in the Kalamazoo, Grand, St. Joseph, and Muskegon river systems. DNR records show Flathead Catfish present in 89 Michigan water bodies. Highest stocking activity on record is in Grand Traverse and Van Buren counties. Bite activity rates Good or better in May, Jun, Jul, Aug, Sep and Oct.
🎣 Best Flathead Catfish Techniques
Heavy bottom rigs with live bluegill, large minnows, or bullheads. Fish deep holes at night for best results
🪱 Best Flathead Catfish Baits
Live bluegill, live suckers, large minnows, live bullheads, fresh-cut fish
📋 Flathead Catfish Fishing Regulations in Michigan
15"
Minimum size
5
Daily limit
10
Possession limit
Year-round
Season
Minimum size of 15" applies statewide. Separate from Channel Catfish limit. Record broken in 2025: Michigan grows trophy flatheads. Primarily found in larger river systems in southern Michigan.
⚠️ Regulations shown are general statewide guidelines for 2025. Rules vary by water body and change annually.
Always verify current regulations in the official Michigan DNR Fishing Guide before you fish.
Forecast based on historical DNR stocking patterns. Not a guarantee of future stocking. Verify with the Michigan DNR.
🎯
Estimated Mature Flathead Catfish, October
Based on DNR stocking records from 2019–2022
(4–7 years ago),
these 0 lakes likely hold mature
Flathead Catfish at or near
15" keeper size today.
🗓
No DNR stocking records found for Flathead Catfish between 2019 and 2022.
This species may not have been stocked in Michigan during that window.
Estimates based on average stocking-size survival rates. Actual populations vary by habitat, fishing pressure, and lake conditions. Data sourced from Michigan DNR.
📅 Best Times to Fish Flathead Catfish
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
January
No data
February
No data
March
No data
April
Fair
May
Good
June
Excellent
July
Excellent
August
Excellent
September
Excellent
October Now
Good
November
Fair
December
No data
💡 Angler Tips for Flathead Catfish
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