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Bone Lake reads lower on nutrients and algae than Cedar Lake. Both are in Polk County, Wisconsin.

Reviewed by LakeQuality Editorial Team · Updated

Both Bone Lake and Cedar Lake sit in Wisconsin. 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. Bone Lake reads materially cleaner than Cedar 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: Bone 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?

Bone Lake

Polk County, Wisconsin

Moderate clarity, visible to about 8 ft.

Cedar Lake

Polk County, Wisconsin

Murky, only visible to about 6.1 ft.

Side-by-Side Metrics

MetricBone LakeCedar Lake
Water Clarity8 ft Better6.1 ft
Phosphorus19.8 µg/L Better42.3 µg/L
Chlorophyll-a (Algae)No dataNo data
Maximum Depth43 ft Better32 ft
Surface Area1,667 acres1,120 acres
Public AccessYesYes
Fish Species45 Better
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

Bone Lake reads lower on nutrients and algae than Cedar Lake. Water clarity: 8 ft vs 6.1 ft. For more fish-species variety, Cedar Lake edges ahead with 5 documented species.

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Where to stay near Bone Lake and Cedar Lake

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Source: EPA National Aquatic Resource Surveys, 2026.