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Foot Lake and Willmar Lake read the same on nutrients and algae. Both are in Kandiyohi County, Minnesota.

Reviewed by LakeQuality Editorial Team · Updated

Foot Lake and Willmar Lake are both in Minnesota — 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 readings are close: Foot Lake and Willmar Lake sit within a narrow band of each other on phosphorus, chlorophyll-a and clarity. The per-parameter table below shows where the small differences actually live.

With readings 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.

Foot Lake

Kandiyohi County, Minnesota

Very murky, less than 2.3 ft of visibility.

Willmar Lake

Kandiyohi County, Minnesota

Very murky, less than 2 ft of visibility.

Side-by-Side Metrics

MetricFoot LakeWillmar Lake
Water Clarity2.3 ft Better2 ft
Phosphorus54.5 µg/L Better73 µg/L
Chlorophyll-a (Algae)20.5 µg/L Better27.6 µg/L
Maximum Depth24 ft Better14 ft
Surface Area503 acres636 acres
Public AccessYesYes
Fish Species1518 Better
Trophic Stateeutrophiceutrophic

A green ✓ marks the better value for that metric (lower phosphorus / chlorophyll = cleaner; higher Secchi / depth / species count = better). Surface area and trophic state carry no tick — a bigger lake is not a better lake.

Verdict

Both lakes earn the same Grade D. The tiebreakers come down to clarity (Foot Lake: 2.3 ft, Willmar Lake: 2 ft) and what you want from the lake. Foot Lake has fewer fish species than Willmar Lake.

Source: EPA National Aquatic Resource Surveys, 2026.