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

Kent County Lake Quality

Michigan, 77 lakes, average grade A (Excellent)

Kent County in Michigan carries 77 monitored lakes — one of the lake-richer counties in our dataset. Coverage that dense usually reflects active lake-association sampling alongside state-agency monitoring. 7 of those lakes carry an A–F grade. The county-level summary describes that subset, not every water body listed. The county's average grade is A — among the cleanest in Michigan. 7 lakes pull an A on their own, and almost none fall into the D or F brackets.

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. Bostwick Lake (A) is the cleanest in the county.

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Where to stay near Kent County

Top-rated places to stay near Kent County

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Quick Answers for Kent County

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

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

Fishing in Kent County

Kent County Fishing Guide

Fish species and best-graded lakes in Kent County

All Lakes in Kent County

77 lakes · 7 graded, 70 not rated7 graded lakes · 70 not rated, hidden

Include not-rated lakes (70)

#	Lake	Grade	Clarity	Phosphorus	Algae	Trophic	Max Depth	Access
1	ABostwick LakeKent	A	8.8 ft	19.5 µg/L	3.3 µg/L	No recent samples	24 ft	Not recorded
2	AEmerald LakeKent	A	11.5 ft	14 µg/L	4.9 µg/L	No recent samples	No recent samples	Not recorded
3	ABig Pine Island LakeKent	A	9.3 ft	18.5 µg/L	3.5 µg/L	No recent samples	40 ft	✓ Public
4	AMuskellunge LakeKent	A	13.5 ft	8.5 µg/L	4 µg/L	No recent samples	No recent samples	✓ Public
5	AMurray LakeKent	A	9 ft	12 µg/L	2.9 µg/L	No recent samples	No recent samples	Not recorded
6	AMaston LakeKent	A	11.3 ft	10 µg/L	2.4 µg/L	No recent samples	No recent samples	✓ Public
7	AHigh LakeKent	A	6.3 ft	14 µg/L	2.7 µg/L	No recent samples	No recent samples	Not recorded
	NRBostwick LakeKent	NR	8.8 ft	No recent samples	No recent samples	No recent samples	24 ft	Not recorded
	NRScram LakeKent	NR	12.5 ft	No recent samples	No recent samples	No recent samples	85 ft	Not recorded
	NRBig Crooked LakeKent	NR	11.5 ft	No recent samples	No recent samples	No recent samples	No recent samples	Not recorded
	NRRound LakeKent	NR	8 ft	No recent samples	No recent samples	No recent samples	No recent samples	Not recorded
	NRHigh LakeKent	NR	6.3 ft	No recent samples	No recent samples	No recent samples	No recent samples	Not recorded
	NRNelson LakeKent	NR	7 ft	19 µg/L	No recent samples	No recent samples	No recent samples	Not recorded
	NRMeek LakeKent	NR	9 ft	17 µg/L	No recent samples	No recent samples	No recent samples	Not recorded
	NRCook and White LakeKent	NR	No recent samples	No recent samples	No recent samples	No recent samples	24 ft	Not recorded
	NRBass LakeKent	NR	No recent samples	No recent samples	No recent samples	No recent samples	20 ft	✓ Public
	NRBlue LakeKent	NR	No recent samples	No recent samples	No recent samples	No recent samples	40 ft	Not recorded
	NRLincoln LakeKent	NR	No recent samples	No recent samples	No recent samples	No recent samples	55 ft	✓ Public
	NRPine LakeKent	NR	No recent samples	No recent samples	No recent samples	No recent samples	24 ft	Not recorded
	NRHalfmile LakeKent	NR	No recent samples	No recent samples	No recent samples	No recent samples	29 ft	Not recorded
	NRLong LakeKent	NR	No recent samples	No recent samples	No recent samples	No recent samples	26 ft	Not recorded
	NRThomas LakeKent	NR	No recent samples	No recent samples	No recent samples	No recent samples	26 ft	Not recorded
	NRWoodbeck LakeKent	NR	No recent samples	No recent samples	No recent samples	No recent samples	40 ft	Not recorded
	NRCamp LakeKent	NR	No recent samples	No recent samples	No recent samples	No recent samples	50 ft	✓ Public
	NRMorgan LakeKent	NR	No recent samples	No recent samples	No recent samples	No recent samples	32 ft	Not recorded
	NRStoner LakeKent	NR	No recent samples	No recent samples	No recent samples	No recent samples	5 ft	Not recorded
	NRWabasis LakeKent	NR	No recent samples	No recent samples	No recent samples	No recent samples	50 ft	Not recorded
	NRMyers LakeKent	NR	No recent samples	No recent samples	No recent samples	No recent samples	41 ft	Not recorded
	NRBrower LakeKent	NR	No recent samples	No recent samples	No recent samples	No recent samples	41 ft	Not recorded
	NRCowan LakeKent	NR	No recent samples	No recent samples	No recent samples	No recent samples	35 ft	Not recorded
	NRFreska LakeKent	NR	No recent samples	No recent samples	No recent samples	No recent samples	30 ft	Not recorded
	NRMuskrat LakeKent	NR	No recent samples	No recent samples	No recent samples	No recent samples	21 ft	Not recorded
	NRLittle Pine Island LakeKent	NR	No recent samples	No recent samples	No recent samples	No recent samples	62 ft	Not recorded
	NRSilver LakeKent	NR	No recent samples	No recent samples	No recent samples	No recent samples	60 ft	Not recorded
	NRGrass LakeKent	NR	No recent samples	No recent samples	No recent samples	No recent samples	30 ft	Not recorded
	NRPickerel LakeKent	NR	No recent samples	No recent samples	No recent samples	No recent samples	30 ft	Not recorded
	NRSlayton LakeKent	NR	No recent samples	No recent samples	No recent samples	No recent samples	28 ft	Not recorded
	NRRatigan LakeKent	NR	No recent samples	No recent samples	No recent samples	No recent samples	37 ft	Not recorded
	NRDean LakeKent	NR	No recent samples	No recent samples	No recent samples	No recent samples	10 ft	Not recorded
	NRBailey LakeKent	NR	No recent samples	No recent samples	No recent samples	No recent samples	31 ft	Not recorded
	NRReeds LakeKent	NR	No recent samples	No recent samples	No recent samples	No recent samples	51 ft	Not recorded
	NRPratt LakeKent	NR	No recent samples	No recent samples	No recent samples	No recent samples	14 ft	Not recorded
	NRCampau LakeKent	NR	No recent samples	No recent samples	No recent samples	No recent samples	15 ft	✓ Public
	NRFisk LakeKent	NR	No recent samples	No recent samples	No recent samples	No recent samples	No recent samples	Not recorded
	NRLamberton LakeKent	NR	No recent samples	No recent samples	No recent samples	No recent samples	No recent samples	Not recorded
	NRClear Bottom LakeKent	NR	No recent samples	No recent samples	No recent samples	No recent samples	No recent samples	Not recorded
	NROlin LakesKent	NR	No recent samples	No recent samples	No recent samples	No recent samples	No recent samples	Not recorded
	NRKe-wag-a-wan LakeKent	NR	No recent samples	No recent samples	No recent samples	No recent samples	No recent samples	Not recorded
	NRLim LakeKent	NR	No recent samples	No recent samples	No recent samples	No recent samples	No recent samples	Not recorded
	NRGidding LakeKent	NR	No recent samples	No recent samples	No recent samples	No recent samples	No recent samples	Not recorded
	NRMiddle LakeKent	NR	No recent samples	No recent samples	No recent samples	No recent samples	No recent samples	Not recorded
	NRUpper LakeKent	NR	No recent samples	No recent samples	No recent samples	No recent samples	No recent samples	Not recorded
	NRBlack LakeKent	NR	No recent samples	No recent samples	No recent samples	No recent samples	No recent samples	Not recorded
	NRAngel LakeKent	NR	No recent samples	No recent samples	No recent samples	No recent samples	No recent samples	Not recorded
	NRSaugage LakeKent	NR	No recent samples	No recent samples	No recent samples	No recent samples	No recent samples	Not recorded
	NRCrawford LakeKent	NR	No recent samples	No recent samples	No recent samples	No recent samples	No recent samples	Not recorded
	NRZiegenfuss LakeKent	NR	No recent samples	No recent samples	No recent samples	No recent samples	No recent samples	Not recorded
	NRHorseshoe LakeKent	NR	No recent samples	No recent samples	No recent samples	No recent samples	No recent samples	Not recorded
	NRBanks LakeKent	NR	No recent samples	No recent samples	No recent samples	No recent samples	No recent samples	Not recorded
	NRBowen LakeKent	NR	No recent samples	No recent samples	No recent samples	No recent samples	No recent samples	Not recorded
	NRGreen LakeKent	NR	No recent samples	No recent samples	No recent samples	No recent samples	No recent samples	Not recorded
	NRLittle Blue LakeKent	NR	No recent samples	No recent samples	No recent samples	No recent samples	No recent samples	Not recorded
	NRLittle Wabasis LakeKent	NR	No recent samples	No recent samples	No recent samples	No recent samples	No recent samples	Not recorded
	NRTek-E-Nink LakeKent	NR	No recent samples	No recent samples	No recent samples	No recent samples	No recent samples	Not recorded
	NRHart LakeKent	NR	No recent samples	No recent samples	No recent samples	No recent samples	No recent samples	Not recorded
	NRLittle Muskrat LakeKent	NR	No recent samples	No recent samples	No recent samples	No recent samples	No recent samples	Not recorded
	NRLittle Myers LakeKent	NR	No recent samples	No recent samples	No recent samples	No recent samples	No recent samples	Not recorded
	NRMcCarthy LakeKent	NR	No recent samples	No recent samples	No recent samples	No recent samples	No recent samples	Not recorded
	NRGavin LakeKent	NR	No recent samples	No recent samples	No recent samples	No recent samples	No recent samples	Not recorded
	NRScally LakeKent	NR	No recent samples	No recent samples	No recent samples	No recent samples	No recent samples	Not recorded
	NRByrne LakeKent	NR	No recent samples	No recent samples	No recent samples	No recent samples	No recent samples	Not recorded
	NRChase LakeKent	NR	No recent samples	No recent samples	No recent samples	No recent samples	No recent samples	Not recorded
	NRStoney LakeKent	NR	No recent samples	No recent samples	No recent samples	No recent samples	No recent samples	Not recorded
	NRMcEwen LakeKent	NR	No recent samples	No recent samples	No recent samples	No recent samples	No recent samples	Not recorded
	NRKettle LakeKent	NR	No recent samples	No recent samples	No recent samples	No recent samples	No recent samples	Not recorded
	NRCampbell LakeKent	NR	No recent samples	No recent samples	No recent samples	No recent samples	No recent samples	✓ Public
	NRBuck LakeKent	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 Kent 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.