Updated 9 Oct 2026, 3:27 am EDT. Get alerts for Guernsey Lake
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Michigan DNR survey, fetched 7 Oct 2026. Not for navigation.
217 acres · deepest 28 ft (measured) · shoreline about 5.8 mi · clarity about 11 ft
Guernsey Lake is the 12th largest of the 125 named lakes of 10 acres or more in Barry County. By Michigan DNR survey it is the 29th deepest of the 44 with a measured depth. Its water is clearer than 67 of the other 94 lakes in the county with satellite clarity readings. Its shoreline measures about 5.8 miles along the state outline. About 26% of its area is deeper than 15 ft.
Ranks against Barry County lakes in Michigan hydrography, Michigan DNR lake surveys and Michigan EGLE satellite clarity; shoreline measured from the state outline. How we measure
Michigan DNR has stocked Guernsey Lake 5 times since 2009. The most recent stocking was 2,800 brown trout on 20 April 2026. Species stocked: brown trout, walleye.
Latest: 20 Apr 2026: 2,800 brown trout.
Source: Michigan DNR Fisheries, fetched 7 Oct 2026. How we measure
Measured from Michigan DNR contours. How we measure
Average water clarity is about 11 ft (Secchi depth 3.5 m, satellite readings 2018–23).
Michigan EGLE satellite clarity, fetched 7 Oct 2026.
Michigan DNR survey; straight-line miles.
Guernsey Lake is 28 feet at its deepest point, measured by Michigan DNR survey. It covers 217 acres.
Yes. Michigan DNR has stocked it 5 times since 2009, most recently 2,800 brown trout on 20 April 2026.
About 43% of the lake's area is deeper than 10 feet, measured from Michigan DNR depth contours.