Skip to main content
LakeQuality

Clear Lake vs Round Lake

Water quality, depth, fish species, and recreation comparison.

Clear Lake and Round Lake both received the same overall water quality grade of A (Excellent). Both are in Aitkin County, Minnesota.

Both Clear Lake and Round Lake sit in Minnesota. A same-state comparison strips out the state-level water-quality regime as a variable: any grade differences here are about the lakes themselves, not the agencies grading them. These two are within a letter of each other on the rubric — Clear Lake (A) versus Round Lake (A). The deciding factors for a recreational visitor are likely physical (depth, access, fish species) rather than water-quality differences.

With grades 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.

A

Clear Lake

Aitkin County, Minnesota

Crystal clear, you can see 16 ft down.

A

Round Lake

Aitkin County, Minnesota

Crystal clear, you can see 15.3 ft down.

Side-by-Side Metrics

Source: EPA National Aquatic Resource Surveys, 2026.

Source: EPA National Aquatic Resource Surveys, 2026.

Source: EPA National Aquatic Resource Surveys, 2026.

Source: EPA National Aquatic Resource Surveys, 2026.

Source: EPA National Aquatic Resource Surveys, 2026.

Source: EPA National Aquatic Resource Surveys, 2026.

Source: EPA National Aquatic Resource Surveys, 2026.

Source: EPA National Aquatic Resource Surveys, 2026.

Source: EPA National Aquatic Resource Surveys, 2026.

MetricClear LakeRound Lake
Overall GradeA (Excellent)A (Excellent)
Water Clarity16 ft15.3 ft
PhosphorusNo dataNo data
Chlorophyll-a (Algae)No dataNo data
Maximum Depth24 ft59 ft
Surface Area573.5 acres634.03 acres
Public AccessYesYes
Fish Species11
Trophic Stateoligotrophicoligotrophic

Bold value = better for that metric (lower phosphorus / chlorophyll = cleaner; higher Secchi / depth / species count = better).

Verdict

Both lakes earn the same Grade A. The tiebreakers come down to clarity (Clear Lake: 16 ft, Round Lake: 15.3 ft) and what you want from the lake. Clear Lake matches its peer on species count.