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

Wisconsin Largemouth Bass Record 2026: 11 lb 3 oz

The Wisconsin state record largemouth bass weighed 11 lb 3 oz. It was caught in 1940 from Lake Ripley in Jefferson County by Robert Bahr, and the Wisconsin DNR still recognizes it as the state mark 86 years later.

Weight
11 lb 3 oz
Length
Not recorded
Year set
1940
86 years standing
Water
Lake Ripley
Jefferson County

Where the record came from

Lake Ripley 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.

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

Largemouth Bass records by state

Wisconsin ranks 7 of 12 among the states in our index for record largemouth bass. Indiana holds the heaviest at 14 lb 12 oz, set in 1991.

#StateWeightYearWater
1Indiana14 lb 12 oz1991Lake
2Missouri13 lb 14 oz1961Bull Shoals Lake
3Ohio13 lb 2 oz1976Farm pond
4Illinois13 lb 1 oz1976Stone Quarry Lake
5New York12 lb 6 oz2024Cayuga Lake
6Michigan11 lb 15 oz1934Big Pine Island Lake
7Wisconsin (this page)11 lb 3 oz1940Lake Ripley
8Pennsylvania11 lb 3 oz1983Birch Run Reservoir
9Iowa10 lb 12 oz1984Lake Fisher
10South Dakota9 lb 5 oz2020Indian Scout Lake
11Minnesota8 lb 15 oz2005Auburn Lake
12North Dakota8 lb 8 oz1983Nelson Lake

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

9 of Wisconsin's 16 standing records are heavier than the 11 lb 3 oz largemouth bass — unsurprising, since record weight tracks species size more than anything about the water. 1 Wisconsin records have stood longer, the largemouth bass mark dating to 1940.

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.