5 miles north of Chelsea
Washtenaw County, Michigan · 42.3752° N, 84.0462° W
One of 21 lakes named Island Lake in Michigan. See them all
The Michigan DNR lists no public access site on Island Lake; much of the shore may be private.
Updated 10 Oct 2026, 12:46 am EDT. Get alerts for Island Lake
National Weather Service; National Interagency Fire Center; U.S. EPA CyAN satellite; Michigan DHHS; Michigan DNR. Weather, warnings, fires and satellite refresh when you open the page (checked at most hourly).
Michigan DNR survey, fetched 7 Oct 2026. Not for navigation.
99 acres · deepest 19 ft (measured) · shoreline about 2.7 mi · clarity about 12 ft
Island Lake is the 23rd largest of the 84 named lakes of 10 acres or more in Washtenaw County. By Michigan DNR survey it is the 32nd deepest of the 45 with a measured depth. Its water is clearer than 52 of the other 66 lakes in the county with satellite clarity readings. Its shoreline measures about 2.7 miles along the state outline. About 5% of its area is deeper than 15 ft.
Ranks against Washtenaw County lakes in Michigan hydrography, Michigan DNR lake surveys and Michigan EGLE satellite clarity; shoreline measured from the state outline. How we measure
Average water clarity is about 12 ft (Secchi depth 3.7 m, satellite readings 2018–23).
Michigan EGLE satellite clarity, fetched 7 Oct 2026.
78 other lakes of 10+ acres within about 8 miles of Island Lake, 9 with a page here (darker blue). Sources: Michigan DNR, US Census Bureau.
Michigan DNR survey; straight-line miles.
Island Lake is 19 feet at its deepest point, measured by Michigan DNR survey. It covers 99 acres.
About 20% of the lake's area is deeper than 10 feet, measured from Michigan DNR depth contours.