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Clearwater Lake reads lower on nutrients and algae than Loon Lake. Both are in Cook County, Minnesota.

Reviewed by LakeQuality Editorial Team · Updated

Both Clearwater Lake and Loon 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. These two sit close on their nutrient and algae readings, Clearwater Lake versus Loon Lake. The deciding factors for a recreational visitor are likely physical (depth, access, fish species) rather than water-quality differences.

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.

Clearwater Lake

Cook County, Minnesota

Crystal clear, you can see 29 ft down.

Loon Lake

Cook County, Minnesota

Crystal clear, you can see 17.4 ft down.

Side-by-Side Metrics

MetricClearwater LakeLoon Lake
Water Clarity29 ft Better17.4 ft
Phosphorus4 µg/L Better5 µg/L
Chlorophyll-a (Algae)1.3 µg/L Better1.6 µg/L
Maximum Depth65 ft202 ft Better
Surface Area462 acres1,095 acres
Public AccessNoYes
Fish Species010 Better
Trophic Stateoligotrophicoligotrophic

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

Clearwater Lake and Loon Lake read the same on nutrients and algae overall. The tiebreakers come down to clarity (Clearwater Lake: 29 ft, Loon Lake: 17.4 ft) and what you want from the lake. Clearwater Lake has fewer fish species than Loon Lake.

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Where to stay near Clearwater Lake and Loon Lake

Compare cabins, hotels, and vacation rentals around Clearwater Lake and Loon Lake. Both lakes are pinned on the map, so you can see which stays sit nearer the one you pick. Switch to Satellite to see how close each is to the water.

Top-rated places to stay near Clearwater Lake and Loon Lake

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Source: EPA National Aquatic Resource Surveys, 2026.