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

Schoolcraft County Lake Quality

Michigan, 123 lakes — no lake here has enough monitoring data for a grade

Schoolcraft County in Michigan carries 123 monitored lakes — one of the lake-richer counties in our dataset. Coverage that dense usually reflects active lake-association sampling alongside state-agency monitoring. No lake in Schoolcraft County has enough sampling behind it for an A–F grade yet. The 123 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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Top-rated places to stay near Schoolcraft County

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Quick Answers for Schoolcraft County

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

Planning a trip? Check special fishing regulations for Neds Lake — or check the official Michigan fishing regulations.

All Lakes in Schoolcraft County

123 lakes · 0 graded, 123 not rated0 graded lakes · 123 not rated, hidden

Include not-rated lakes (123)

Lake	Grade	Clarity	Phosphorus	Algae	Trophic	Max Depth	Access
NRNeds LakeSchoolcraft	NR	6 ft	No recent samples	No recent samples	No recent samples	40 ft	Not recorded
NRBig Island LakeSchoolcraft	NR	8.5 ft	No recent samples	No recent samples	No recent samples	35 ft	✓ Public
NRTwilight LakeSchoolcraft	NR	13 ft	No recent samples	No recent samples	No recent samples	45 ft	Not recorded
NRByers LakeSchoolcraft	NR	4.6 ft	No recent samples	No recent samples	No recent samples	15 ft	✓ Public
NRLong LakeSchoolcraft	NR	No recent samples	No recent samples	No recent samples	No recent samples	17 ft	Not recorded
NRStanley LakeSchoolcraft	NR	No recent samples	No recent samples	No recent samples	No recent samples	25 ft	Not recorded
NRGemini LakesSchoolcraft	NR	No recent samples	No recent samples	No recent samples	No recent samples	20 ft	✓ Public
NRSnyder LakeSchoolcraft	NR	No recent samples	No recent samples	No recent samples	No recent samples	15 ft	✓ Public
NRRoss LakeSchoolcraft	NR	No recent samples	No recent samples	No recent samples	No recent samples	20 ft	✓ Public
NRDriggs LakeSchoolcraft	NR	No recent samples	No recent samples	No recent samples	No recent samples	31 ft	Not recorded
NRCusino LakeSchoolcraft	NR	No recent samples	No recent samples	No recent samples	No recent samples	30 ft	Not recorded
NRWorchester LakeSchoolcraft	NR	No recent samples	No recent samples	No recent samples	No recent samples	21 ft	Not recorded
NRC-Three PoolSchoolcraft	NR	No recent samples	No recent samples	No recent samples	No recent samples	23 ft	Not recorded
NRJ PoolSchoolcraft	NR	No recent samples	No recent samples	No recent samples	No recent samples	25 ft	Not recorded
NRI PoolSchoolcraft	NR	No recent samples	No recent samples	No recent samples	No recent samples	19 ft	Not recorded
NRF PoolSchoolcraft	NR	No recent samples	No recent samples	No recent samples	No recent samples	16 ft	Not recorded
NRH PoolSchoolcraft	NR	No recent samples	No recent samples	No recent samples	No recent samples	25 ft	Not recorded
NRA-Two PoolSchoolcraft	NR	No recent samples	No recent samples	No recent samples	No recent samples	23 ft	Not recorded
NRE PoolSchoolcraft	NR	No recent samples	No recent samples	No recent samples	No recent samples	24 ft	Not recorded
NRLily LakeSchoolcraft	NR	No recent samples	No recent samples	No recent samples	No recent samples	22 ft	Not recorded
NRG PoolSchoolcraft	NR	No recent samples	No recent samples	No recent samples	No recent samples	19 ft	Not recorded
NRC-Two PoolSchoolcraft	NR	No recent samples	No recent samples	No recent samples	No recent samples	27 ft	Not recorded
NRC PoolSchoolcraft	NR	No recent samples	No recent samples	No recent samples	No recent samples	27 ft	Not recorded
NRD PoolSchoolcraft	NR	No recent samples	No recent samples	No recent samples	No recent samples	21 ft	Not recorded
NRBoot LakeSchoolcraft	NR	No recent samples	No recent samples	No recent samples	No recent samples	30 ft	✓ Public
NRB PoolSchoolcraft	NR	No recent samples	No recent samples	No recent samples	No recent samples	22 ft	Not recorded
NRSand LakeSchoolcraft	NR	No recent samples	No recent samples	No recent samples	No recent samples	28 ft	Not recorded
NRA PoolSchoolcraft	NR	No recent samples	No recent samples	No recent samples	No recent samples	20 ft	Not recorded
NRM PoolSchoolcraft	NR	No recent samples	No recent samples	No recent samples	No recent samples	25 ft	Not recorded
NRClear LakeSchoolcraft	NR	No recent samples	No recent samples	No recent samples	No recent samples	50 ft	✓ Public
NRTownline LakeSchoolcraft	NR	No recent samples	No recent samples	No recent samples	No recent samples	31 ft	Not recorded
NRHerman LakeSchoolcraft	NR	No recent samples	No recent samples	No recent samples	No recent samples	22 ft	Not recorded
NRPetes LakeSchoolcraft	NR	No recent samples	No recent samples	No recent samples	No recent samples	35 ft	Not recorded
NRT PoolSchoolcraft	NR	No recent samples	No recent samples	No recent samples	No recent samples	17 ft	Not recorded
NRGrassy LakeSchoolcraft	NR	No recent samples	No recent samples	No recent samples	No recent samples	36 ft	Not recorded
NRColwell LakeSchoolcraft	NR	No recent samples	No recent samples	No recent samples	No recent samples	25 ft	✓ Public
NRMcKeever LakeSchoolcraft	NR	No recent samples	No recent samples	No recent samples	No recent samples	40 ft	Not recorded
NRCrooked LakeSchoolcraft	NR	No recent samples	No recent samples	No recent samples	No recent samples	33 ft	Not recorded
NRKennedy LakeSchoolcraft	NR	No recent samples	No recent samples	No recent samples	No recent samples	8 ft	✓ Public
NRSteuben LakeSchoolcraft	NR	No recent samples	No recent samples	No recent samples	No recent samples	55 ft	✓ Public
NRFarm LakeSchoolcraft	NR	No recent samples	No recent samples	No recent samples	No recent samples	29 ft	Not recorded
NRCookson LakeSchoolcraft	NR	No recent samples	No recent samples	No recent samples	No recent samples	24 ft	Not recorded
NRStewart LakeSchoolcraft	NR	No recent samples	No recent samples	No recent samples	No recent samples	16 ft	Not recorded
NRMarsh Creek PoolSchoolcraft	NR	No recent samples	No recent samples	No recent samples	No recent samples	19 ft	Not recorded
NRStraits LakeSchoolcraft	NR	No recent samples	No recent samples	No recent samples	No recent samples	38 ft	Not recorded
NRIronjaw LakeSchoolcraft	NR	No recent samples	No recent samples	No recent samples	No recent samples	32 ft	Not recorded
NRTriangle LakeSchoolcraft	NR	No recent samples	No recent samples	No recent samples	No recent samples	30 ft	✓ Public
NRBass LakeSchoolcraft	NR	No recent samples	No recent samples	No recent samples	No recent samples	20 ft	✓ Public
NROstrander LakeSchoolcraft	NR	No recent samples	No recent samples	No recent samples	No recent samples	26 ft	Not recorded
NRCorner LakeSchoolcraft	NR	No recent samples	No recent samples	No recent samples	No recent samples	37 ft	✓ Public
NRLittle Bass LakeSchoolcraft	NR	No recent samples	No recent samples	No recent samples	No recent samples	29 ft	Not recorded
NRHughes LakeSchoolcraft	NR	No recent samples	No recent samples	No recent samples	No recent samples	40 ft	Not recorded
NRFord LakeSchoolcraft	NR	No recent samples	No recent samples	No recent samples	No recent samples	28 ft	Not recorded
NRChip LakeSchoolcraft	NR	No recent samples	No recent samples	No recent samples	No recent samples	25 ft	Not recorded
NRMezik LakeSchoolcraft	NR	No recent samples	No recent samples	No recent samples	No recent samples	19 ft	Not recorded
NRMoon LakeSchoolcraft	NR	No recent samples	No recent samples	No recent samples	No recent samples	18 ft	Not recorded
NRMurphy LakeSchoolcraft	NR	No recent samples	No recent samples	No recent samples	No recent samples	49 ft	Not recorded
NRLake Anne LouiseSchoolcraft	NR	No recent samples	No recent samples	No recent samples	No recent samples	25 ft	Not recorded
NRIsland LakeSchoolcraft	NR	No recent samples	No recent samples	No recent samples	No recent samples	No recent samples	Not recorded
NRSmith LakeSchoolcraft	NR	No recent samples	No recent samples	No recent samples	No recent samples	40 ft	Not recorded
NRDodge LakeSchoolcraft	NR	No recent samples	No recent samples	No recent samples	No recent samples	55 ft	✓ Public
NRThunder LakeSchoolcraft	NR	No recent samples	No recent samples	No recent samples	No recent samples	36 ft	Not recorded
NRCedar LakeSchoolcraft	NR	No recent samples	No recent samples	No recent samples	No recent samples	24 ft	Not recorded
NRMerwin LakeSchoolcraft	NR	No recent samples	No recent samples	No recent samples	No recent samples	32 ft	Not recorded
NRIndian LakeSchoolcraft	NR	No recent samples	No recent samples	No recent samples	No recent samples	15 ft	✓ Public
NRPalmer LakeSchoolcraft	NR	No recent samples	No recent samples	No recent samples	No recent samples	15 ft	Not recorded
NRMarblehead LakeSchoolcraft	NR	No recent samples	No recent samples	No recent samples	No recent samples	22 ft	Not recorded
NRMcDonald LakeSchoolcraft	NR	No recent samples	No recent samples	No recent samples	No recent samples	10 ft	✓ Public
NRShoepac LakeSchoolcraft	NR	No recent samples	No recent samples	No recent samples	No recent samples	16 ft	Not recorded
NRShuberts LakeSchoolcraft	NR	No recent samples	No recent samples	No recent samples	No recent samples	15 ft	Not recorded
NRGulliver LakeSchoolcraft	NR	No recent samples	No recent samples	No recent samples	No recent samples	25 ft	✓ Public
NRJamestown Slough WSchoolcraft	NR	No recent samples	No recent samples	No recent samples	No recent samples	No recent samples	Not recorded
NRClear LakeSchoolcraft	NR	No recent samples	No recent samples	No recent samples	No recent samples	23 ft	Not recorded
NRTwin LakesSchoolcraft	NR	No recent samples	No recent samples	No recent samples	No recent samples	No recent samples	Not recorded
NRMoon LakeSchoolcraft	NR	No recent samples	No recent samples	No recent samples	No recent samples	No recent samples	Not recorded
NRTee LakeSchoolcraft	NR	No recent samples	No recent samples	No recent samples	No recent samples	No recent samples	Not recorded
NRCornell LakeSchoolcraft	NR	No recent samples	No recent samples	No recent samples	No recent samples	No recent samples	Not recorded
NRI PoolSchoolcraft	NR	No recent samples	No recent samples	No recent samples	No recent samples	No recent samples	Not recorded
NRB PoolSchoolcraft	NR	No recent samples	No recent samples	No recent samples	No recent samples	No recent samples	Not recorded
NRA-Two PoolSchoolcraft	NR	No recent samples	No recent samples	No recent samples	No recent samples	No recent samples	Not recorded
NRSpur PoolSchoolcraft	NR	No recent samples	No recent samples	No recent samples	No recent samples	No recent samples	Not recorded
NRUpper Goose Pen PoolSchoolcraft	NR	No recent samples	No recent samples	No recent samples	No recent samples	No recent samples	Not recorded
NRLower Goose Pen PoolSchoolcraft	NR	No recent samples	No recent samples	No recent samples	No recent samples	No recent samples	Not recorded
NRCamp Nine LakesSchoolcraft	NR	No recent samples	No recent samples	No recent samples	No recent samples	No recent samples	Not recorded
NRDutch Fred LakeSchoolcraft	NR	No recent samples	No recent samples	No recent samples	No recent samples	No recent samples	✓ Public
NRCarpenter LakeSchoolcraft	NR	No recent samples	No recent samples	No recent samples	No recent samples	No recent samples	Not recorded
NRSucker LakeSchoolcraft	NR	No recent samples	No recent samples	No recent samples	No recent samples	No recent samples	Not recorded
NRStanley LakeSchoolcraft	NR	No recent samples	No recent samples	No recent samples	No recent samples	No recent samples	✓ Public
NRMahoney LakeSchoolcraft	NR	No recent samples	No recent samples	No recent samples	No recent samples	No recent samples	Not recorded
NRFork LakeSchoolcraft	NR	No recent samples	No recent samples	No recent samples	No recent samples	No recent samples	Not recorded
NRBonnet LakeSchoolcraft	NR	No recent samples	No recent samples	No recent samples	No recent samples	No recent samples	Not recorded
NRCrooked LakeSchoolcraft	NR	No recent samples	No recent samples	No recent samples	No recent samples	No recent samples	Not recorded
NRFawn LakeSchoolcraft	NR	No recent samples	No recent samples	No recent samples	No recent samples	No recent samples	Not recorded
NRCanoe LakeSchoolcraft	NR	No recent samples	No recent samples	No recent samples	No recent samples	No recent samples	Not recorded
NRBeaton LakeSchoolcraft	NR	No recent samples	No recent samples	No recent samples	No recent samples	No recent samples	Not recorded
NREast LakeSchoolcraft	NR	No recent samples	No recent samples	No recent samples	No recent samples	No recent samples	Not recorded
NRLittle Island LakeSchoolcraft	NR	No recent samples	No recent samples	No recent samples	No recent samples	No recent samples	Not recorded
NRMinerva LakeSchoolcraft	NR	No recent samples	No recent samples	No recent samples	No recent samples	No recent samples	✓ Public
NRThree Island LakeSchoolcraft	NR	No recent samples	No recent samples	No recent samples	No recent samples	No recent samples	Not recorded
NRLittle Bass LakeSchoolcraft	NR	No recent samples	No recent samples	No recent samples	No recent samples	No recent samples	Not recorded
NRLeg LakeSchoolcraft	NR	No recent samples	No recent samples	No recent samples	No recent samples	No recent samples	Not recorded
NRUpper Thunder LakeSchoolcraft	NR	No recent samples	No recent samples	No recent samples	No recent samples	No recent samples	Not recorded
NRDeep LakeSchoolcraft	NR	No recent samples	No recent samples	No recent samples	No recent samples	No recent samples	Not recorded
NRToms LakeSchoolcraft	NR	No recent samples	No recent samples	No recent samples	No recent samples	No recent samples	Not recorded
NRSwan LakeSchoolcraft	NR	No recent samples	No recent samples	No recent samples	No recent samples	No recent samples	Not recorded
NRIronjaw LakeSchoolcraft	NR	No recent samples	No recent samples	No recent samples	No recent samples	No recent samples	Not recorded
NRBlue Joe LakeSchoolcraft	NR	No recent samples	No recent samples	No recent samples	No recent samples	No recent samples	Not recorded
NRWedge LakeSchoolcraft	NR	No recent samples	No recent samples	No recent samples	No recent samples	No recent samples	Not recorded
NRRed LakeSchoolcraft	NR	No recent samples	No recent samples	No recent samples	No recent samples	No recent samples	Not recorded
NRGreen Bass LakeSchoolcraft	NR	No recent samples	No recent samples	No recent samples	No recent samples	No recent samples	Not recorded
NRCoattail LakeSchoolcraft	NR	No recent samples	No recent samples	No recent samples	No recent samples	No recent samples	Not recorded
NRVance LakeSchoolcraft	NR	No recent samples	No recent samples	No recent samples	No recent samples	No recent samples	Not recorded
NRKlondike LakeSchoolcraft	NR	No recent samples	No recent samples	No recent samples	No recent samples	No recent samples	Not recorded
NRPear LakeSchoolcraft	NR	No recent samples	No recent samples	No recent samples	No recent samples	No recent samples	Not recorded
NRBluegill LakeSchoolcraft	NR	No recent samples	No recent samples	No recent samples	No recent samples	No recent samples	Not recorded
NRMichaud LakeSchoolcraft	NR	No recent samples	No recent samples	No recent samples	No recent samples	No recent samples	Not recorded
NRNinemile LakeSchoolcraft	NR	No recent samples	No recent samples	No recent samples	No recent samples	No recent samples	Not recorded
NRGrass LakeSchoolcraft	NR	No recent samples	No recent samples	No recent samples	No recent samples	No recent samples	Not recorded
NRIsland Lake SloughSchoolcraft	NR	No recent samples	No recent samples	No recent samples	No recent samples	No recent samples	Not recorded
NRDavis SloughSchoolcraft	NR	No recent samples	No recent samples	No recent samples	No recent samples	No recent samples	Not recorded
NRClear SloughSchoolcraft	NR	No recent samples	No recent samples	No recent samples	No recent samples	No recent samples	Not recorded
NRMinnow LakeSchoolcraft	NR	No recent samples	No recent samples	No recent samples	No recent samples	No recent samples	Not recorded
NRMillaquaka LakeSchoolcraft	NR	No recent samples	No recent samples	No recent samples	No recent samples	No recent samples	Not 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 Schoolcraft 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.