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

McHenry County Lake Quality

North Dakota, 32 lakes, measured by ND DEQ

There are 32 monitored lakes in McHenry County. The mix is varied enough that the county-level average tells you the broad strokes, not the choose-this-cabin specifics. The 32 monitored lakes in McHenry County carry whatever clarity, phosphorus, and chlorophyll-a readings ND DEQ has published, shown as reported.

Most of the county's monitored lakes are shallow, under 50 feet, which means wind keeps the water column mixed all summer and sediment-bound phosphorus releases back into the surface layer whenever the bottom is disturbed.

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Where to stay near McHenry County

Top-rated places to stay near McHenry County

Prices for Oct 23–25, 4 adults. Change dates on the map below.

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Quick Answers for McHenry County

Cleanest lakes in McHenry County →Cleanest lakes in North Dakota →Best swimming lakes in North Dakota →

Planning a trip? Check special fishing regulations for Round Lake — or check the official North Dakota fishing regulations.

All Lakes in McHenry County

32 lakes · 0 ranked on readings, 32 without enough sampling0 lakes ranked on readings · 32 without enough sampling, hidden

#LakeClarityPhosphorusAlgaeTrophicMax DepthAccess
Round LakeMcHenry12.1 ftNo recent samples2.4 µg/LNo recent samplesNo recent samplesNot recorded
Lake GeorgeMcHenry2.5 ftNo recent samples7.4 µg/LNo recent samplesNo recent samples✓ Public
Buffalo Lodge LakeMcHenry3 ftNo recent samples2.6 µg/LNo recent samplesNo recent samples✓ Public
Goose LakeMcHenryNo recent samplesNo recent samplesNo recent samplesNo recent samplesNo recent samplesNot recorded
North LakeMcHenryNo recent samplesNo recent samplesNo recent samplesNo recent samplesNo recent samplesNot recorded
Rock LakeMcHenryNo recent samplesNo recent samplesNo recent samplesNo recent samplesNo recent samplesNot recorded
Carvers LakeMcHenryNo recent samplesNo recent samplesNo recent samplesNo recent samplesNo recent samplesNot recorded
Oslie LakeMcHenryNo recent samplesNo recent samplesNo recent samplesNo recent samplesNo recent samplesNot recorded
Nead LakeMcHenryNo recent samplesNo recent samplesNo recent samplesNo recent samplesNo recent samplesNot recorded
Stink LakeMcHenryNo recent samplesNo recent samplesNo recent samplesNo recent samplesNo recent samplesNot recorded
Lake HesterMcHenryNo recent samplesNo recent samplesNo recent samplesNo recent samplesNo recent samplesNot recorded
Potters LakeMcHenryNo recent samplesNo recent samplesNo recent samplesNo recent samplesNo recent samplesNot recorded
Erickson LakeMcHenryNo recent samplesNo recent samplesNo recent samplesNo recent samplesNo recent samplesNot recorded
Cottonwood LakeMcHenryNo recent samplesNo recent samplesNo recent samplesNo recent samples13 ft✓ Public
Connia SloughMcHenryNo recent samplesNo recent samplesNo recent samplesNo recent samplesNo recent samplesNot recorded
Bentley LakeMcHenryNo recent samplesNo recent samplesNo recent samplesNo recent samples7 ftNot recorded
Alkali LakeMcHenryNo recent samplesNo recent samplesNo recent samplesNo recent samplesNo recent samplesNot recorded
Steele LakeMcHenryNo recent samplesNo recent samplesNo recent samplesNo recent samplesNo recent samplesNot recorded
Fresh Water LakeMcHenryNo recent samplesNo recent samplesNo recent samplesNo recent samplesNo recent samplesNot recorded
Smoky LakeMcHenryNo recent samplesNo recent samplesNo recent samplesNo recent samplesNo recent samplesNot recorded
Flat LakeMcHenryNo recent samplesNo recent samplesNo recent samplesNo recent samplesNo recent samplesNot recorded
Rutten LakeMcHenryNo recent samplesNo recent samplesNo recent samplesNo recent samplesNo recent samplesNot recorded
Martin LakeMcHenryNo recent samplesNo recent samplesNo recent samplesNo recent samplesNo recent samplesNot recorded
Bromley LakeMcHenryNo recent samplesNo recent samplesNo recent samplesNo recent samplesNo recent samplesNot recorded
Lake LemerMcHenryNo recent samplesNo recent samplesNo recent samplesNo recent samplesNo recent samplesNot recorded
Long LakeMcHenryNo recent samplesNo recent samplesNo recent samplesNo recent samplesNo recent samplesNot recorded
Duckshire LakeMcHenryNo recent samplesNo recent samplesNo recent samplesNo recent samplesNo recent samplesNot recorded
Lake GeorgeMcHenryNo recent samplesNo recent samplesNo recent samplesNo recent samplesNo recent samplesNot recorded
Herrington LakeMcHenryNo recent samplesNo recent samplesNo recent samplesNo recent samplesNo recent samplesNot recorded
Stevens SloughMcHenryNo recent samplesNo recent samplesNo recent samplesNo recent samplesNo recent samplesNot recorded
Heffner LakeMcHenryNo recent samplesNo recent samplesNo recent samplesNo recent samplesNo recent samplesNot recorded
Spring LakeMcHenryNo 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 North Dakota

Rolette County

80 lakes

Renville County

2 lakes

Bottineau County

47 lakes

Benson County

31 lakes

McLean County

43 lakes

Barnes County

22 lakes

Browse every North Dakota 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 North Dakota Department of Environmental Quality. See data sources.