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

Mecosta County Lake Quality

Michigan, 45 lakes, measured by EGLE

There are 45 monitored lakes in Mecosta County. The mix is varied enough that the county-level average tells you the broad strokes, not the choose-this-cabin specifics. 4 of those lakes carry recent nutrient and algae readings. The county-level summary describes that subset, not every water body listed. On average, Mecosta County lakes carry some of the lowest phosphorus and chlorophyll-a readings in Michigan, with clear summer transparency across most monitored basins.

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 Round Lake.

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Quick Answers for Mecosta County

Cleanest lakes in Mecosta County →Cleanest lakes in Michigan →Best swimming lakes in Michigan →

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

Fishing in Mecosta County

Mecosta County Fishing Guide

Fish species and the cleanest lakes in Mecosta County

All Lakes in Mecosta County

45 lakes · 4 ranked on readings, 41 without enough sampling4 lakes ranked on readings · 41 without enough sampling, hidden

Include not-rated lakes (41)

#	Lake	Clarity	Phosphorus	Algae	Trophic	Max Depth	Access
1	Round LakeMecosta	9 ft	17 µg/L	6.8 µg/L	No recent samples	45 ft	Not recorded
2	Mecosta LakeMecosta	9.5 ft	10 µg/L	3.3 µg/L	No recent samples	39 ft	Not recorded
3	Horsehead LakeMecosta	9 ft	14 µg/L	2.5 µg/L	No recent samples	No recent samples	✓ Public
4	School Section LakeMecosta	11.8 ft	8.5 µg/L	2.7 µg/L	No recent samples	33 ft	Not recorded
	Chippewa LakeMecosta	11 ft	No recent samples	No recent samples	No recent samples	40 ft	✓ Public
	Blue LakeMecosta	10.5 ft	No recent samples	No recent samples	No recent samples	50 ft	Not recorded
	Lake MecostaMecosta	9.8 ft	No recent samples	No recent samples	No recent samples	39 ft	✓ Public
	Rogers Dam PondMecosta	11.5 ft	11 µg/L	No recent samples	No recent samples	No recent samples	✓ Public
	Canadian LakeMecosta	3 ft	No recent samples	No recent samples	No recent samples	No recent samples	✓ Public
	Pretty LakeMecosta	No recent samples	No recent samples	No recent samples	No recent samples	22 ft	✓ Public
	Merrill LakeMecosta	No recent samples	No recent samples	No recent samples	No recent samples	27 ft	Not recorded
	Pogy LakeMecosta	No recent samples	No recent samples	No recent samples	No recent samples	40 ft	Not recorded
	Long LakeMecosta	No recent samples	No recent samples	No recent samples	No recent samples	21 ft	Not recorded
	Haymarsh Lakes (north)Mecosta	No recent samples	No recent samples	No recent samples	No recent samples	27 ft	Not recorded
	Youngs LakeMecosta	No recent samples	No recent samples	No recent samples	No recent samples	33 ft	Not recorded
	Martiny LakeMecosta	No recent samples	No recent samples	No recent samples	No recent samples	21 ft	Not recorded
	Big RapidsMecosta	No recent samples	No recent samples	No recent samples	No recent samples	No recent samples	Not recorded
	Bergess LakeMecosta	No recent samples	No recent samples	No recent samples	No recent samples	40 ft	✓ Public
	Diamond LakeMecosta	No recent samples	No recent samples	No recent samples	No recent samples	10 ft	Not recorded
	Townline LakeMecosta	No recent samples	No recent samples	No recent samples	No recent samples	50 ft	✓ Public
	Tanner Crk. FloodingMecosta	No recent samples	No recent samples	No recent samples	No recent samples	21 ft	Not recorded
	Hillsview LakeMecosta	No recent samples	No recent samples	No recent samples	No recent samples	30 ft	✓ Public
	Jehnsen LakeMecosta	No recent samples	No recent samples	No recent samples	No recent samples	15 ft	✓ Public
	Pretty LakeMecosta	No recent samples	No recent samples	No recent samples	No recent samples	20 ft	✓ Public
	Clear LakeMecosta	No recent samples	No recent samples	No recent samples	No recent samples	30 ft	✓ Public
	Lake of the CloudsMecosta	No recent samples	No recent samples	No recent samples	No recent samples	32 ft	Not recorded
	Canadian LakesMecosta	No recent samples	No recent samples	No recent samples	No recent samples	30 ft	Not recorded
	West Canadian LakeMecosta	No recent samples	No recent samples	No recent samples	No recent samples	42 ft	Not recorded
	Brady LakeMecosta	No recent samples	No recent samples	No recent samples	No recent samples	27 ft	Not recorded
	Morley PondMecosta	No recent samples	No recent samples	No recent samples	No recent samples	20 ft	Not recorded
	Jacks LakeMecosta	No recent samples	No recent samples	No recent samples	No recent samples	No recent samples	Not recorded
	Hodges LakeMecosta	No recent samples	No recent samples	No recent samples	No recent samples	65 ft	Not recorded
	Little Blodgett LakeMecosta	No recent samples	No recent samples	No recent samples	No recent samples	No recent samples	Not recorded
	Cook LakeMecosta	No recent samples	No recent samples	No recent samples	No recent samples	No recent samples	Not recorded
	Lower Evans LakeMecosta	No recent samples	No recent samples	No recent samples	No recent samples	37 ft	✓ Public
	Lost LakeMecosta	No recent samples	No recent samples	No recent samples	No recent samples	No recent samples	Not recorded
	Big Evans LakeMecosta	No recent samples	No recent samples	No recent samples	No recent samples	47 ft	✓ Public
	Upper Evans LakeMecosta	No recent samples	No recent samples	No recent samples	No recent samples	No recent samples	Not recorded
	Tubbs LakeMecosta	No recent samples	No recent samples	No recent samples	No recent samples	38 ft	✓ Public
	Boom LakeMecosta	No recent samples	No recent samples	No recent samples	No recent samples	30 ft	Not recorded
	Big John Brown LakeMecosta	No recent samples	No recent samples	No recent samples	No recent samples	No recent samples	Not recorded
	Lake TwentyeightMecosta	No recent samples	No recent samples	No recent samples	No recent samples	26 ft	Not recorded
	Hannah LakeMecosta	No recent samples	No recent samples	No recent samples	No recent samples	50 ft	Not recorded
	Gorrel LakeMecosta	No recent samples	No recent samples	No recent samples	No recent samples	21 ft	Not recorded
	Lake LauraMecosta	No recent samples	No recent samples	No recent samples	No recent samples	No recent samples	Not 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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Source: the Michigan Department of Environment, Great Lakes, and Energy (EGLE). See data sources.