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LakeQuality

Portage Lake vs Sugar Lake

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

Sugar Lake has a higher water quality grade (B, Good) than Portage Lake (B, Good). Both are in Minnesota.

B

Portage Lake

Cass County, Minnesota

Moderate clarity, visible to about 7.5 ft.

B

Sugar Lake

Itasca County, Minnesota

Moderate clarity, visible to about 7 ft.

Side-by-Side Metrics

MetricPortage LakeSugar Lake
Overall GradeB (Good)B (Good)
Water Clarity7.5 ft7 ft
Phosphorus23 µg/L16 µg/L
Chlorophyll-a (Algae)6.1 µg/L4.1 µg/L
Maximum Depth55 ft22 ft
Surface Area1.5K acres1.5K acres
Public AccessYesNo
Fish Species1513
Trophic Statemesotrophicmesotrophic

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

Verdict

Sugar Lake wins on overall water quality with a Grade B versus Portage Lake's Grade B. Water clarity: 7 ft vs 7.5 ft. For more fish-species variety, Portage Lake edges ahead with 15 documented species.