Illinois species

Bigmouth Buffalo in Illinois

Daily limit, record and water pages for Illinois bigmouth buffalo.

  • no statewide rowlimit
  • 48 lbs 0 ozrecord
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Photo of the species, not an Illinois water: USFWS Mountain-Prairie, Public domain

Illinois fish

bigmouth buffalo in the Prairie State

The 2026 digest table carries no statewide line naming bigmouth buffalo. Rules printed for a particular lake or river can still apply to it.

The heaviest on the IDNR hook and line list weighed 48 lbs 0 oz: Mississippi River, 1936. Of 2 Illinois pages listing it, the largest are Horseshoe Lake (Madison County) and Mermet State Lake.

no statewide rowstatewide
48 lbs 0 ozstate record
2water pages
0stocked 2021-26
Records

bigmouth buffalo in the IDNR record book

DivisionWeightWaterCountyDate
hook and line48 lbs 0 ozMississippi RiverAdams CountyJanuary 1, 1936
bow and arrow49 lbs 15 ozMermet State LakeMassac CountyMarch 20, 2010

IDNR Illinois state record fish list (keeper: Illinois Department of Natural Resources; no angler names printed), read November 4, 2026.

IDNR ratings

How IDNR biologists grade bigmouth buffalo lake by lake

LakeIDNR ratingCounty
Horseshoe Lake (Madison County)PoorMadison County

IDNR fishing outlook ratings and survey notes as printed on the IFishIllinois page, read November 4, 2026.

Where to look

Where Illinois bigmouth buffalo show up

Illinois lakes listing bigmouth buffalo

IDNR IFishIllinois outlook ratings and species lists, the IDNR stocking table and IDNR record waters; largest waters first.

Related fish

Species the digest groups with bigmouth buffalo

Photos

Lakes and river bends close to Bigmouth Buffalo, in pictures

Montrose Harbor, Illinois
Montrose Harbor
Photo: uptowner, CC BY 2.0
Diversey Harbor, Illinois
Diversey Harbor
Photo: edward stojakovic, CC BY 2.0
Lake Michigan, Illinois
Lake Michigan
Photo: Charles Fulton, CC BY 2.0
Cicero, Illinois
Cicero
Photo: David Wilson, CC BY 2.0
Answers

bigmouth buffalo in Illinois: replies for anglers

What daily take of bigmouth buffalo does Illinois permit?

No statewide digest row names it; a water's own entry may still apply.

What is the Illinois record bigmouth buffalo?

IDNR lists 48 lbs 0 oz, Mississippi River, 1936. IDNR prints no angler name.

Which Illinois lakes list bigmouth buffalo?

2 Illinois pages, Horseshoe Lake (Madison County) and Mermet State Lake first.

Where does the bigmouth buffalo rule change in Illinois?

Site-specific entries do not name it; posted all-fish rules on a water still apply.

How many bigmouth buffalo did IDNR stock?

No 2021 to 2026 stocking row lists it.

Which IDNR license lets me keep bigmouth buffalo?

Anglers 16 and older carry an Illinois fishing license ($15 a year for residents, $31.50 for nonresidents in 2026).

Which IDNR list would a record bigmouth buffalo go on?

IDNR keeps a hook and line division and a bow and arrow division. IDNR has 2 record rows under this fish.

Which Illinois lakes does IDNR rate highly for bigmouth buffalo?

Top of the list: Horseshoe Lake (Madison County), poor, among 1 graded lakes.

Pick a Prairie State lake for bigmouth buffalo

The waters above each show access and limits.