What is the water-quality readings for South Lake?

South Lake has limited nutrient and algae sampling on record. Water clarity reads 26 feet (Secchi depth). South Lake has too little recent summer sampling to compare with the Minnesota state average.

South Lake is located in Cook County, Minnesota. It spans 1,145 acres with a maximum depth of 140 feet. 6 fish species have been documented in the lake.

Swimming at South Lake: Water Readings and Advisories

South Lake in Cook 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: 26 ft visibility. Always check local health department advisories before swimming.

Key Metrics

Metric	Value
Water Clarity (Secchi Depth)	26 ft
Maximum Depth	140 ft
Location	Cook County, Minnesota

How does South Lake compare?

South 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 26 feet. That counts as exceptional clarity — sunlight penetrates deep, supporting submerged plants and limiting algae.

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More on South Lake

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