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LakeQuality

Little Muskego Lake vs Spring Lake

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

Little Muskego Lake and Spring Lake both received the same overall water quality grade of A (Excellent). Both are in Waukesha County, Wisconsin.

Little Muskego Lake and Spring Lake are both in Wisconsin — a same-state head-to-head where the comparison comes down to lake-specific differences in depth, watershed, and monitoring history rather than the broader state-level water-quality regime. The grades are close: Little Muskego Lake (A) and Spring Lake (A) 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.

A

Little Muskego Lake

Waukesha County, Wisconsin

Crystal clear, you can see 15.5 ft down.

A

Spring Lake

Waukesha County, Wisconsin

No clarity data.

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.

MetricLittle Muskego LakeSpring Lake
Overall GradeA (Excellent)A (Excellent)
Water Clarity15.5 ftNo data
PhosphorusNo data12.2 µg/L
Chlorophyll-a (Algae)No dataNo data
Maximum Depth--
Surface Area506 acres60 acres
Public AccessUnknownUnknown
Fish Species00
Trophic Stateoligotrophicmesotrophic

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

Verdict

Both lakes earn the same Grade A. The tiebreakers come down to what you want from the lake. Little Muskego Lake matches its peer on species count.