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Kanabec County Lake Quality

Minnesota, 7 lakes, average grade F (Algae-prone)

Kanabec County has 7 graded lakes — a thin enough sample that one or two stressed lakes can move the county average noticeably. Use the per-lake pages below for what actually matters. The county average is F — the most-stressed bracket in our rubric. Most monitored lakes here show persistent nutrient loading and algal pressure.

The county's lakes lean shallow, which makes the grades sensitive to wind, sediment-resuspension, and any nutrient inputs from the watershed. The cleanest lake on the books is Ann Lake (F); the most-stressed is Ann Lake (F).

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Quick Answers for Kanabec County

Cleanest lakes in Kanabec County →Cleanest lakes in Minnesota →Safest swimming lakes in Minnesota →

Planning a trip? Check special fishing regulations for Ann Lake, whether the fish are safe to eat, and the best times to fish — or browse the full Minnesota regulations index.

Fishing in Kanabec County

Kanabec County Fishing Guide

Fish species and best-graded lakes in Kanabec County

DNR Reports (23)

Minnesota DNR LakeFinder resources for lakes in Kanabec County. browse all reports →

These links open on the official state DNR websites (Wisconsin DNR survey PDFs · Minnesota DNR LakeFinder).

All Lakes in Kanabec County

7 lakes · 2 graded, 5 not rated2 graded lakes · 5 not rated, hidden

#LakeGradeClarityPhosphorusAlgaeTrophicMax DepthAccess
1FAnn LakeKanabecF2 ft73.5 µg/L57 µg/LNo recent samples17 ft✓ Public
2FKnife LakeKanabecF2 ft161.5 µg/L97.2 µg/LNo recent samples15 ft✓ Public
NRFish LakeKanabecNR2 ftNo recent samplesNo recent samplesNo recent samples8 ft✓ Public
NRDevil'S LakeKanabecNR7.3 ftNo recent samplesNo recent samplesNo recent samples19 ftCarry-in
NRLewis LakeKanabecNR7 ftNo recent samplesNo recent samplesNo recent samples48 ft✓ Public
NRPomroy LakeKanabecNR5.5 ftNo recent samplesNo recent samplesNo recent samples11 ft✓ Public
NRMora LakeKanabecNR5 ftNo recent samplesNo recent samplesNo recent samples24 ftCarry-in

NR = not rated: the monitoring record does not meet the evidence bar for a grade. That is EPA Integrated Reporting Category 3 (insufficient information), not a failing grade. How grading works.

Lake Match

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Six questions — swimming, fishing, quiet, cabins, drive time — and a shortlist of graded lakes that fit, with the water quality behind each one.

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Other Counties in Minnesota

Clay County

2 lakes · Avg grade A

Morrison County

16 lakes · Avg grade A

Hubbard County

76 lakes · Avg grade A

Cass County

130 lakes · Avg grade A

Cook County

139 lakes · Avg grade A

Crow Wing County

121 lakes · Avg grade A

See how Kanabec County stacks up in the national county water-quality rankings, or browse the full directory of graded lakes across all 39 states and 2 Canadian provinces.

Source: EPA National Aquatic Resource Surveys, 2026.