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Dead Lake reads lower on nutrients and algae than Walker Lake. Both are in Otter Tail County, Minnesota.

Reviewed by LakeQuality Editorial Team · Updated

Both Dead Lake and Walker 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: Dead Lake carries clearly lower phosphorus and chlorophyll-a readings than Walker 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: Dead 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?

Dead Lake

Otter Tail County, Minnesota

Good clarity, visible to about 10.2 ft.

Walker Lake

Otter Tail County, Minnesota

Moderate clarity, visible to about 7.5 ft.

Side-by-Side Metrics

MetricDead LakeWalker Lake
Water Clarity10.2 ft Better7.5 ft
Phosphorus20 µg/L Better26.5 µg/L
Chlorophyll-a (Algae)5.8 µg/L Better8.3 µg/L
Maximum Depth65 ft Better29 ft
Surface Area7,546 acres578 acres
Public AccessYesYes
Fish Species18 Better0
Trophic Statemesotrophiceutrophic

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

Dead Lake reads lower on nutrients and algae than Walker Lake. Water clarity: 10.2 ft vs 7.5 ft. For fishing diversity, Dead Lake also leads with 18 species.

Source: EPA National Aquatic Resource Surveys, 2026.