Updated 9 Oct 2026, 3:36 am EDT. Get alerts for Corey 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.
599 acres · deepest 70 ft (measured) · shoreline about 7.0 mi · clarity about 11 ft
Corey Lake is the 3rd largest of the 67 named lakes of 10 acres or more in St. Joseph County. By Michigan DNR survey it is the deepest of the 26 with a measured depth. Its water is clearer than 42 of the other 53 lakes in the county with satellite clarity readings. Its shoreline measures about 7.0 miles along the state outline. About 39% of its area is deeper than 30 ft.
Ranks against St. Joseph County lakes in Michigan hydrography, Michigan DNR lake surveys and Michigan EGLE satellite clarity; shoreline measured from the state outline. How we measure
2 public access sites on Corey Lake.
Michigan DNR boating access, fetched 7 Oct 2026.
Average water clarity is about 11 ft (Secchi depth 3.4 m, satellite readings 2018–23).
Michigan EGLE satellite clarity, fetched 7 Oct 2026.
Michigan DNR survey; straight-line miles.
Corey Lake is 70 feet at its deepest point, measured by Michigan DNR survey. It covers 599 acres.
Yes. 2 public access sites are listed: Harwood Lake; Corey Lake.
About 61% of the lake's area is deeper than 10 feet, measured from Michigan DNR depth contours.