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South Lindstrom Lake reads lower on nutrients and algae than Green Lake. Both are in Chisago County, Minnesota.

Reviewed by LakeQuality Editorial Team · Updated

Green Lake and South Lindstrom 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. South Lindstrom Lake reads materially cleaner than Green Lake on nutrients and algae. A gap that wide is unlikely to close in a single year of remediation work; it reflects multi-decade differences in the lakes themselves.

For a recreational visitor, the wider gap in the readings is decisive: South Lindstrom 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?

Green Lake

Chisago County, Minnesota

Murky, only visible to about 6 ft.

South Lindstrom Lake

Chisago County, Minnesota

Murky, only visible to about 5.6 ft.

Side-by-Side Metrics

MetricGreen LakeSouth Lindstrom Lake
Water Clarity6 ft Better5.6 ft
Phosphorus23 µg/L16 µg/L Better
Chlorophyll-a (Algae)8.4 µg/L6.1 µg/L Better
Maximum Depth32 ft34 ft Better
Surface Area1,809 acres455 acres
Public AccessYesYes
Fish Species15 Better14
Trophic Stateeutrophicmesotrophic

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

South Lindstrom Lake reads lower on nutrients and algae than Green Lake. Water clarity: 5.6 ft vs 6 ft. For more fish-species variety, Green Lake edges ahead with 15 documented species.

Source: EPA National Aquatic Resource Surveys, 2026.