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LakeQuality

Lake Butte des Morts vs Lake Winneconne

Water quality, depth, fish species, and recreation comparison.

Lake Butte des Morts and Lake Winneconne both received the same overall water quality grade of F (Very Poor). Both are in Winnebago County, Wisconsin.

Both Lake Butte des Morts and Lake Winneconne sit in Wisconsin. A same-state comparison strips out the state-level water-quality regime as a variable: any grade differences here are about the lakes themselves, not the agencies grading them. These two are within a letter of each other on the rubric — Lake Butte des Morts (F) versus Lake Winneconne (F). The deciding factors for a recreational visitor are likely physical (depth, access, fish species) rather than water-quality differences.

With grades this close, the choice between the two lakes turns on non-water-quality factors: depth, fish species, public access, distance from home. The per-lake pages below cover all of those.

F

Lake Butte des Morts

Winnebago County, Wisconsin

Very murky, less than 2.3 ft of visibility.

F

Lake Winneconne

Winnebago County, Wisconsin

Very murky, less than 2.4 ft of visibility.

Side-by-Side Metrics

Source: EPA National Aquatic Resource Surveys, 2026.

Source: EPA National Aquatic Resource Surveys, 2026.

Source: EPA National Aquatic Resource Surveys, 2026.

Source: EPA National Aquatic Resource Surveys, 2026.

Source: EPA National Aquatic Resource Surveys, 2026.

Source: EPA National Aquatic Resource Surveys, 2026.

Source: EPA National Aquatic Resource Surveys, 2026.

Source: EPA National Aquatic Resource Surveys, 2026.

Source: EPA National Aquatic Resource Surveys, 2026.

MetricLake Butte des MortsLake Winneconne
Overall GradeF (Very Poor)F (Very Poor)
Water Clarity2.3 ft2.4 ft
PhosphorusNo dataNo data
Chlorophyll-a (Algae)No dataNo data
Maximum Depth9 ft9 ft
Surface Area8.6K acres4.6K acres
Public AccessUnknownUnknown
Fish Species00
Trophic Stateeutrophiceutrophic

Bold value = better for that metric (lower phosphorus / chlorophyll = cleaner; higher Secchi / depth / species count = better).

Verdict

Both lakes earn the same Grade F. The tiebreakers come down to clarity (Lake Butte des Morts: 2.3 ft, Lake Winneconne: 2.4 ft) and what you want from the lake. Lake Butte des Morts matches its peer on species count.