Skip to main content
LakeQuality

Lake Winneconne vs Little Lake Butte des Morts

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

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

Both Lake Winneconne and Little Lake Butte des Morts 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. The grades are close: Lake Winneconne (F) and Little Lake Butte des Morts (F) are within one letter of each other on the LakeGrade rubric. The per-parameter sub-grades below will show where the small differences actually live.

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 Winneconne

Winnebago County, Wisconsin

Very murky, less than 2.4 ft of visibility.

F

Little Lake Butte des Morts

Winnebago County, Wisconsin

Very murky, less than 2 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 WinneconneLittle Lake Butte des Morts
Overall GradeF (Very Poor)F (Very Poor)
Water Clarity2.4 ft2 ft
PhosphorusNo data133.5 µg/L
Chlorophyll-a (Algae)No dataNo data
Maximum Depth9 ft18 ft
Surface Area4.6K acres1.2K acres
Public AccessUnknownUnknown
Fish Species00
Trophic Stateeutrophichypereutrophic

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 Winneconne: 2.4 ft, Little Lake Butte des Morts: 2 ft) and what you want from the lake. Lake Winneconne matches its peer on species count.