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LakeQuality

Alexander Lake vs Lake Mohawksin

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

Alexander Lake and Lake Mohawksin both received the same overall water quality grade of C (Fair). Both are in Lincoln County, Wisconsin.

Both Alexander Lake and Lake Mohawksin 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: Alexander Lake (C) and Lake Mohawksin (C) 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.

C

Alexander Lake

Lincoln County, Wisconsin

Murky, only visible to about 4 ft.

C

Lake Mohawksin

Lincoln County, Wisconsin

Murky, only visible to about 4 ft.

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.

MetricAlexander LakeLake Mohawksin
Overall GradeC (Fair)C (Fair)
Water Clarity4 ft4 ft
Phosphorus46.2 µg/L34.7 µg/L
Chlorophyll-a (Algae)No dataNo data
Maximum Depth36 ft25 ft
Surface Area618 acres1.5K 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 C. The tiebreakers come down to clarity (Alexander Lake: 4 ft, Lake Mohawksin: 4 ft) and what you want from the lake. Alexander Lake matches its peer on species count.