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Tetonka Lake and Upper Sakatah Lake read the same on nutrients and algae. Both are in Le Sueur County, Minnesota.

Reviewed by LakeQuality Editorial Team · Updated

Both Tetonka Lake and Upper Sakatah Lake sit in Minnesota. A same-state comparison strips out the state-level water-quality regime as a variable: any differences in the readings here are about the lakes themselves, not the agencies sampling them. These two sit close on the readings, Tetonka Lake versus Upper Sakatah Lake. The deciding factors for a recreational visitor are likely physical (depth, access, fish species) rather than water-quality differences.

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.

Tetonka Lake

Le Sueur County, Minnesota

Very murky, less than 3 ft of visibility.

Upper Sakatah Lake

Le Sueur County, Minnesota

Very murky, less than 3 ft of visibility.

Side-by-Side Metrics

MetricTetonka LakeUpper Sakatah Lake
Water Clarity3 ft3 ft
Phosphorus289 µg/L Better303 µg/L
Chlorophyll-a (Algae)48 µg/L Better76.8 µg/L
Maximum Depth35 ft Better12 ft
Surface Area1,358 acres892 acres
Public AccessYesYes
Fish Species19 Better14
Trophic Statehypereutrophichypereutrophic

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.

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Compare Tetonka Lake or Upper Sakatah Lake against a different lake.

Verdict

Both lakes earn the same Grade F. The tiebreakers come down to clarity (Tetonka Lake: 3 ft, Upper Sakatah Lake: 3 ft) and what you want from the lake. Tetonka Lake supports more documented fish species.

Source: EPA National Aquatic Resource Surveys, 2026.