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LakeQuality
Late afternoon sun over Slim Lake, scattering a bright path across wind-textured water

Grant County Lake Quality

Minnesota, 84 lakes, measured by Minnesota PCA

Grant County in Minnesota carries 84 monitored lakes — one of the lake-richer counties in our dataset. Coverage that dense usually reflects active lake-association sampling alongside state-agency monitoring. 1 of those lake carry recent nutrient and algae readings. The county-level summary describes that subset, not every water body listed. Phosphorus and algae readings vary widely across Grant County; the per-lake pages below carry the numbers.

The county's lakes lean shallow, which makes the readings sensitive to wind, sediment-resuspension, and any nutrient inputs from the watershed. The cleanest measured lake is Lower Elk Lake.

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Where to stay near Grant County

Top-rated places to stay near Grant County

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Quick Answers for Grant County

Cleanest lakes in Grant County →Cleanest lakes in Minnesota →Best swimming lakes in Minnesota →

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

Fishing in Grant County

Grant County Fishing Guide

Fish species and the cleanest lakes in Grant County

DNR Reports (12)

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

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

All Lakes in Grant County

84 lakes · 1 ranked on readings, 83 without enough sampling1 lake ranked on readings · 83 without enough sampling, hidden

#LakeClarityPhosphorusAlgaeTrophicMax DepthAccess
1Lower Elk LakeGrant1.8 ft58.5 µg/L28.7 µg/LNo recent samples13 ft✓ Public
Unnamed LakeGrant3.6 ft72 µg/L12.6 µg/LNo recent samplesNo recent samplesCarry-in
Unnamed LakeGrant6.7 ftNo recent samplesNo recent samplesNo recent samplesNo recent samples✓ Public
Unnamed LakeGrant0.7 ft269 µg/L114 µg/LNo recent samplesNo recent samplesCarry-in
Barrett LakeGrant4 ftNo recent samplesNo recent samplesNo recent samples28 ft✓ Public
Elk LakeGrant9 ftNo recent samplesNo recent samplesNo recent samples29 ft✓ Public
Pomme de Terre LakeGrant4.5 ftNo recent samplesNo recent samplesNo recent samples23 ft✓ Public
Flekkefjord LakeGrant2.6 ftNo recent samplesNo recent samplesNo recent samplesNo recent samplesCarry-in
Barrows LakeGrant6.6 ft287 µg/L2.2 µg/LNo recent samplesNo recent samples✓ Public
Ask LakeGrantNo recent samplesNo recent samplesNo recent samplesNo recent samplesNo recent samplesNot recorded
Little LakeGrantNo recent samplesNo recent samplesNo recent samplesNo recent samples7.9 ftNot recorded
Melby LakeGrantNo recent samplesNo recent samplesNo recent samplesNo recent samplesNo recent samplesNot recorded
Pelican LakeGrantNo recent samplesNo recent samplesNo recent samplesNo recent samples21 ft✓ Public
Bah LakesGrantNo recent samplesNo recent samplesNo recent samplesNo recent samplesNo recent samplesNot recorded
Shady Grove LakeGrantNo recent samplesNo recent samplesNo recent samplesNo recent samplesNo recent samples✓ Public
Horseshoe LakeGrantNo recent samplesNo recent samplesNo recent samplesNo recent samplesNo recent samplesNot recorded
Mill PondGrantNo recent samplesNo recent samplesNo recent samplesNo recent samplesNo recent samplesNot recorded
Briggs LakeGrantNo recent samplesNo recent samplesNo recent samplesNo recent samplesNo recent samplesNot recorded
Grinder LakeGrantNo recent samplesNo recent samplesNo recent samplesNo recent samplesNo recent samplesNot recorded
Hagen LakeGrantNo recent samplesNo recent samplesNo recent samplesNo recent samplesNo recent samplesNot recorded
Fourmile LakeGrantNo recent samplesNo recent samplesNo recent samplesNo recent samplesNo recent samplesNot recorded
Field LakeGrantNo recent samplesNo recent samplesNo recent samplesNo recent samplesNo recent samplesNot recorded
Scott LakeGrantNo recent samplesNo recent samplesNo recent samplesNo recent samplesNo recent samplesNot recorded
Skunk LakeGrantNo recent samplesNo recent samplesNo recent samplesNo recent samplesNo recent samplesNot recorded
Elbow LakeGrantNo recent samplesNo recent samplesNo recent samplesNo recent samplesNo recent samplesNot recorded
Engralson LakeGrantNo recent samplesNo recent samplesNo recent samplesNo recent samplesNo recent samplesNot recorded
Foss LakeGrantNo recent samplesNo recent samplesNo recent samplesNo recent samplesNo recent samplesNot recorded
Lightning LakeGrantNo recent samplesNo recent samplesNo recent samplesNo recent samples11.5 ft✓ Public
Stony Brook LakeGrantNo recent samplesNo recent samplesNo recent samplesNo recent samplesNo recent samplesNot recorded
Pletan LakeGrantNo recent samplesNo recent samplesNo recent samplesNo recent samplesNo recent samplesNot recorded
Stony LakeGrantNo recent samplesNo recent samplesNo recent samplesNo recent samplesNo recent samplesNot recorded
Ash LakeGrantNo recent samplesNo recent samplesNo recent samplesNo recent samples3.3 ftNot recorded
Mud LakeGrantNo recent samplesNo recent samplesNo recent samplesNo recent samplesNo recent samplesNot recorded
Doughty LakeGrantNo recent samplesNo recent samplesNo recent samplesNo recent samplesNo recent samplesNot recorded
Graham LakeGrantNo recent samplesNo recent samplesNo recent samplesNo recent samples7 ft✓ Public
Nelson LakeGrantNo recent samplesNo recent samplesNo recent samplesNo recent samples7 ftNot recorded
Big LakeGrantNo recent samplesNo recent samplesNo recent samplesNo recent samplesNo recent samplesNot recorded
Ohlsrud LakeGrantNo recent samplesNo recent samplesNo recent samplesNo recent samplesNo recent samplesNot recorded
Keitzman SloughGrantNo recent samplesNo recent samplesNo recent samplesNo recent samplesNo recent samplesNot recorded
Niemackl LakesGrantNo recent samplesNo recent samplesNo recent samplesNo recent samplesNo recent samplesNot recorded
Niemackl LakesGrantNo recent samplesNo recent samplesNo recent samplesNo recent samplesNo recent samplesNot recorded
Werk LakeGrantNo recent samplesNo recent samplesNo recent samplesNo recent samplesNo recent samplesNot recorded
Johnson LakeGrantNo recent samplesNo recent samplesNo recent samplesNo recent samplesNo recent samplesNot recorded
Burr LakeGrantNo recent samplesNo recent samplesNo recent samplesNo recent samplesNo recent samplesNot recorded
Hibrooten LakeGrantNo recent samplesNo recent samplesNo recent samplesNo recent samplesNo recent samplesNot recorded
Moses LakeGrantNo recent samplesNo recent samplesNo recent samplesNo recent samplesNo recent samplesNot recorded
Schram LakeGrantNo recent samplesNo recent samplesNo recent samplesNo recent samplesNo recent samplesNot recorded
Prescott LakeGrantNo recent samplesNo recent samplesNo recent samplesNo recent samplesNo recent samplesNot recorded
Mustinka FlowageGrantNo recent samplesNo recent samplesNo recent samplesNo recent samplesNo recent samples✓ Public
Hodgson LakeGrantNo recent samplesNo recent samplesNo recent samplesNo recent samples3.3 ftNot recorded
Bailey SloughGrantNo recent samplesNo recent samplesNo recent samplesNo recent samplesNo recent samplesNot recorded
Round LakeGrantNo recent samplesNo recent samplesNo recent samplesNo recent samplesNo recent samplesNot recorded
Trisko LakeGrantNo recent samplesNo recent samplesNo recent samplesNo recent samplesNo recent samplesNot recorded
Flekkefjord LakeGrantNo recent samplesNo recent samplesNo recent samplesNo recent samplesNo recent samplesNot recorded
Island LakeGrantNo recent samplesNo recent samplesNo recent samplesNo recent samplesNo recent samplesNot recorded
Eide LakeGrantNo recent samplesNo recent samplesNo recent samplesNo recent samplesNo recent samplesNot recorded
Huset LakeGrantNo recent samplesNo recent samplesNo recent samplesNo recent samplesNo recent samplesNot recorded
Cormorant LakeGrantNo recent samplesNo recent samplesNo recent samplesNo recent samplesNo recent samplesNot recorded
Horseshoe LakeGrantNo recent samplesNo recent samplesNo recent samplesNo recent samplesNo recent samplesNot recorded
Long LakeGrantNo recent samplesNo recent samplesNo recent samplesNo recent samplesNo recent samplesNot recorded
Thorstad LakeGrantNo recent samplesNo recent samplesNo recent samplesNo recent samplesNo recent samplesNot recorded
Lee LakeGrantNo recent samplesNo recent samplesNo recent samplesNo recent samplesNo recent samplesNot recorded
Malmgren LakeGrantNo recent samplesNo recent samplesNo recent samplesNo recent samplesNo recent samplesNot recorded
Peterson LakeGrantNo recent samplesNo recent samplesNo recent samplesNo recent samplesNo recent samplesNot recorded
Sylvan LakeGrantNo recent samplesNo recent samplesNo recent samplesNo recent samplesNo recent samplesNot recorded
Jenstad LakeGrantNo recent samplesNo recent samplesNo recent samplesNo recent samplesNo recent samplesNot recorded
Elk LakeGrantNo recent samplesNo recent samplesNo recent samplesNo recent samplesNo recent samplesNot recorded
Thompson LakeGrantNo recent samplesNo recent samplesNo recent samplesNo recent samples22 ft✓ Public
Hjermenrud LakeGrantNo recent samplesNo recent samplesNo recent samplesNo recent samplesNo recent samplesNot recorded
Torstenson LakeGrantNo recent samplesNo recent samplesNo recent samplesNo recent samplesNo recent samplesNot recorded
Ellingson LakeGrantNo recent samplesNo recent samplesNo recent samplesNo recent samplesNo recent samplesNot recorded
Olson LakeGrantNo recent samplesNo recent samplesNo recent samplesNo recent samplesNo recent samplesNot recorded
Church LakeGrantNo recent samplesNo recent samplesNo recent samplesNo recent samplesNo recent samplesNot recorded
Round LakeGrantNo recent samplesNo recent samplesNo recent samplesNo recent samplesNo recent samplesNot recorded
Spring LakeGrantNo recent samplesNo recent samplesNo recent samplesNo recent samplesNo recent samplesNot recorded
Retzloff LakeGrantNo recent samplesNo recent samplesNo recent samplesNo recent samplesNo recent samplesNot recorded
Turtle LakeGrantNo recent samplesNo recent samplesNo recent samplesNo recent samplesNo recent samplesNot recorded
Bolin LakeGrantNo recent samplesNo recent samplesNo recent samplesNo recent samplesNo recent samplesNot recorded
Wilson LakeGrantNo recent samplesNo recent samplesNo recent samplesNo recent samplesNo recent samplesNot recorded
Reed LakeGrantNo recent samplesNo recent samplesNo recent samplesNo recent samplesNo recent samplesNot recorded
Patchen LakeGrantNo recent samplesNo recent samplesNo recent samplesNo recent samplesNo recent samplesNot recorded
Shauer LakeGrantNo recent samplesNo recent samplesNo recent samplesNo recent samplesNo recent samplesNot recorded
Cottonwood LakeGrantNo recent samplesNo recent samplesNo recent samplesNo recent samples13.1 ft✓ Public
Niemackl LakesGrantNo recent samplesNo recent samplesNo recent samplesNo recent samplesNo recent samplesNot recorded

NR = no nutrient or algae reading on record. The measurements are published as the authority reports them. Where the data comes from.

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Other Counties in Minnesota

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Browse every Minnesota lake, or the full directory of lakes across all United States (49 states), Canada (Ontario, Québec, Nova Scotia, British Columbia and Newfoundland and Labrador), and 38 other country hubs..

Source: the Minnesota Pollution Control Agency and the Minnesota DNR. See data sources.