What is the water-quality readings for Loon Lake?

Loon Lake has limited nutrient and algae sampling on record. Water clarity reads 2 feet (Secchi depth). Loon Lake has too little recent summer sampling to compare with the Minnesota state average.

Loon Lake is located in Blue Earth County, Minnesota. It spans 809 acres with a maximum depth of 7 feet. 13 fish species have been documented in the lake.

Swimming at Loon Lake: Water Readings and Advisories

Loon Lake in Blue Earth County, Minnesota has limited nutrient and algae sampling on record. A water-quality reading is not a swimming clearance. The state water agency and county health departments post current advisories; check them before you swim.. Water clarity: 2 ft visibility. Always check local health department advisories before swimming.

Key Metrics

Metric	Value
Water Clarity (Secchi Depth)	2 ft
Maximum Depth	7 ft
Location	Blue Earth County, Minnesota

How does Loon Lake compare?

Loon Lake is not rated for water quality — it does not have enough recent summer sampling for a readings, so it is not compared with the Minnesota state average.

Water clarity (Secchi depth) sits at 2 feet. That signals heavy algae or sediment, often tied to high phosphorus from runoff.

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More on Loon Lake

How clean is Loon Lake? →What fish are in Loon Lake? →Is Loon Lake polluted? →Full water quality report →Blue Earth County lakes →Cleanest lakes in Blue Earth County →Cleanest lakes in Minnesota →