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Shallow Lake reads lower on nutrients and algae than Jessie Lake. Both are in Itasca County, Minnesota.

Reviewed by LakeQuality Editorial Team · Updated

Both Jessie Lake and Shallow 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. The readings are meaningfully apart: Shallow Lake carries clearly lower phosphorus and chlorophyll-a readings than Jessie Lake. A spread that wide reflects real underlying differences, in watershed inputs, depth profiles, or monitoring rigor.

For a recreational visitor, the wider gap in the readings is decisive: Shallow Lake has the lower nutrient and algae numbers. For a researcher, the gap is the interesting part: what is different about the two watersheds, and which of those differences is mutable?

Jessie Lake

Itasca County, Minnesota

Moderate clarity, visible to about 8.5 ft.

Shallow Lake

Itasca County, Minnesota

Crystal clear, you can see 16.4 ft down.

Side-by-Side Metrics

MetricJessie LakeShallow Lake
Water Clarity8.5 ft16.4 ft Better
Phosphorus30 µg/L9 µg/L Better
Chlorophyll-a (Algae)12.5 µg/L3.2 µg/L Better
Maximum Depth42 ft85 ft Better
Surface Area1,740 acres539 acres
Public AccessYesYes
Fish Species15 Better12
Trophic Stateeutrophicoligotrophic

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

Shallow Lake reads lower on nutrients and algae than Jessie Lake. Water clarity: 16.4 ft vs 8.5 ft. For more fish-species variety, Jessie Lake edges ahead with 15 documented species.

Source: EPA National Aquatic Resource Surveys, 2026.