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Fall Lake and Garden Lake read the same on nutrients and algae. Both are in Lake County, Minnesota.

Reviewed by LakeQuality Editorial Team · Updated

Both Fall Lake and Garden 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 close: Fall Lake and Garden Lake sit within a narrow band of each other on phosphorus, chlorophyll-a and clarity. The per-parameter table below shows where the small differences actually live.

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.

Fall Lake

Lake County, Minnesota

Murky, only visible to about 5.5 ft.

Garden Lake

Lake County, Minnesota

Murky, only visible to about 5 ft.

Side-by-Side Metrics

MetricFall LakeGarden Lake
Water Clarity5.5 ft Better5 ft
Phosphorus21 µg/L15.5 µg/L Better
Chlorophyll-a (Algae)6 µg/L4.4 µg/L Better
Maximum Depth32 ft55 ft Better
Surface Area2,258 acres653 acres
Public AccessYesYes
Fish Species1212
Trophic Statemesotrophicmesotrophic

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

Both lakes earn the same Grade A. The tiebreakers come down to clarity (Fall Lake: 5.5 ft, Garden Lake: 5 ft) and what you want from the lake. Fall Lake matches its peer on species count.

Source: EPA National Aquatic Resource Surveys, 2026.