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

Oscoda County Lake Quality

Michigan, 25 lakes — no lake here has enough monitoring data for a grade

There are 25 monitored lakes in Oscoda County. The mix is varied enough that the county-level average tells you the broad strokes, not the choose-this-cabin specifics. No lake in Oscoda County has enough sampling behind it for an A–F grade yet. The 25 monitored lakes below carry whatever clarity, phosphorus, and chlorophyll-a measurements exist.

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 Oscoda County

Top-rated places to stay near Oscoda County

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Quick Answers for Oscoda County

Cleanest lakes in Oscoda County →Cleanest lakes in Michigan →Safest swimming lakes in Michigan →

Planning a trip? Check special fishing regulations for Loon Lake, whether the fish are safe to eat, and the best times to fish — or check the official Michigan fishing regulations.

Fishing in Oscoda County

Oscoda County Fishing Guide

Fish species and best-graded lakes in Oscoda County

All Lakes in Oscoda County

25 lakes · 0 graded, 25 not rated0 graded lakes · 25 not rated, hidden

#LakeGradeClarityPhosphorusAlgaeTrophicMax DepthAccess
NRLoon LakeOscodaNR21 ftNo recent samplesNo recent samplesNo recent samples50 ftNot recorded
NRMack LakeOscodaNR5.5 ftNo recent samplesNo recent samplesNo recent samples5 ftNot recorded
NRTea LakeOscodaNRNo recent samplesNo recent samplesNo recent samplesNo recent samples70 ftNot recorded
NRSnyder LakeOscodaNRNo recent samplesNo recent samplesNo recent samplesNo recent samples32 ftNot recorded
NRLittle Bear LakeOscodaNRNo recent samplesNo recent samplesNo recent samplesNo recent samples28 ftNot recorded
NRIsland LakeOscodaNRNo recent samplesNo recent samplesNo recent samplesNo recent samples37 ftNot recorded
NRMcCollum LakeOscodaNRNo recent samplesNo recent samplesNo recent samplesNo recent samples50 ft✓ Public
NRIndian LakeOscodaNRNo recent samplesNo recent samplesNo recent samplesNo recent samples55 ftNot recorded
NRMuskrat LakeOscodaNRNo recent samplesNo recent samplesNo recent samplesNo recent samples4 ft✓ Public
NRPerry LakeOscodaNRNo recent samplesNo recent samplesNo recent samplesNo recent samplesNo recent samplesNot recorded
NRShamrock LakeOscodaNRNo recent samplesNo recent samplesNo recent samplesNo recent samples10 ftNot recorded
NRIsland LakeOscodaNRNo recent samplesNo recent samplesNo recent samplesNo recent samples15 ftNot recorded
NRMio Dam PondOscodaNRNo recent samplesNo recent samplesNo recent samplesNo recent samples30 ftNot recorded
NRLake DavidOscodaNRNo recent samplesNo recent samplesNo recent samplesNo recent samplesNo recent samplesNot recorded
NRIsland LakeOscodaNRNo recent samplesNo recent samplesNo recent samplesNo recent samplesNo recent samplesNot recorded
NRIsland LakeOscodaNRNo recent samplesNo recent samplesNo recent samplesNo recent samplesNo recent samplesNot recorded
NRBass LakeOscodaNRNo recent samplesNo recent samplesNo recent samplesNo recent samplesNo recent samplesNot recorded
NRTote Road LakeOscodaNRNo recent samplesNo recent samplesNo recent samplesNo recent samplesNo recent samplesNot recorded
NRPerch LakeOscodaNRNo recent samplesNo recent samplesNo recent samplesNo recent samplesNo recent samplesNot recorded
NRDurkee LakeOscodaNRNo recent samplesNo recent samplesNo recent samplesNo recent samplesNo recent samplesNot recorded
NRRhoads LakeOscodaNRNo recent samplesNo recent samplesNo recent samplesNo recent samplesNo recent samplesNot recorded
NROak LakeOscodaNRNo recent samplesNo recent samplesNo recent samplesNo recent samplesNo recent samplesNot recorded
NRMio Dam PondOscodaNRNo recent samplesNo recent samplesNo recent samplesNo recent samplesNo recent samples✓ Public
NRMoon LakeOscodaNRNo recent samplesNo recent samplesNo recent samplesNo recent samplesNo recent samplesNot recorded
NRTea LakeOscodaNRNo recent samplesNo recent samplesNo recent samplesNo recent samplesNo recent samplesNot recorded

NR = not rated: there is not enough recent sampling to support a letter. That is EPA Integrated Reporting Category 3 (insufficient information), not a failing grade. How grading works.

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Other Counties in Michigan

Dickinson County

43 lakes · Avg grade A

Clare County

47 lakes · Avg grade A

Ogemaw County

50 lakes · Avg grade A

Cheboygan County

31 lakes · Avg grade A

Roscommon County

26 lakes · Avg grade A

Gladwin County

29 lakes · Avg grade A

See how Oscoda County stacks up in the national county water-quality rankings, or browse the full directory of graded lakes across all United States (49 states), Canada (Ontario, Québec, Nova Scotia, British Columbia and Newfoundland and Labrador), and 38 other country hubs..

Source: EPA National Aquatic Resource Surveys, 2026.