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Pink and orange afterglow over the treeline on Slim Lake after sunset

Wisconsin Smallmouth Bass Record 2026: 9 lb 1 oz

The Wisconsin state record smallmouth bass weighed 9 lb 1 oz. It was caught in 1950 from Indian Lake in Oneida County by Leon Stefonek, and the Wisconsin DNR still recognizes it as the state mark 76 years later.

Weight
9 lb 1 oz
Length
Not recorded
Year set
1950
76 years standing
Water
Indian Lake
Oneida County

Where the record came from

Indian Lake is one of the Wisconsin lakes with water-quality readings on record. Its nutrient and algae samples from the EPA Water Quality Portal are on its lake page, a useful check on whether the water that produced a record fish still fishes well.

Indian Lake — County, WI. See the full water-quality report →

Smallmouth Bass records by state

Wisconsin ranks 3 of 12 among the states in our index for record smallmouth bass. Michigan holds the heaviest at 9 lb 15 oz, set in 2016.

#StateWeightYearWater
1Michigan9 lb 15 oz2016Indian River
2Ohio9 lb 8 oz1993Lake Erie
3Wisconsin (this page)9 lb 1 oz1950Indian Lake
4New York9 lb2024St. Lawrence River
5Pennsylvania8 lb 8 oz1997Scotts Run Lake
6Indiana8 lb 3 oz2024Monroe Lake
7Minnesota8 lb1948West Battle Lake
8Iowa7 lb 12 oz1980West Okoboji Lake
9South Dakota7 lb 4 oz2021Lake Oahe
10Illinois7 lb 3 oz2019Lake Michigan
11Missouri7 lb 2 oz1994Stockton Lake
12North Dakota6 lb 13 oz2007Lake Darling

Each figure comes from that state's own fisheries agency. Agencies differ on what they certify — some recognize catch-and-release length records alongside weight — so treat this as a comparison of standing certified weights, not a single national list.

How it ranks inside Wisconsin

11 of Wisconsin's 16 standing records are heavier than the 9 lb 1 oz smallmouth bass — unsurprising, since record weight tracks species size more than anything about the water. 5 Wisconsin records have stood longer, the smallmouth bass mark dating to 1950.

Record compiled from the official Wisconsin DNR angling records. Updated 2026. New records are certified year-round — check the agency page before treating any figure here as the current mark. LakeQuality is independent and not affiliated with the Wisconsin DNR.