Manitou Beach and Devils Lake are two unincorporated communities in the Irish Hills region of Lenawee County in the U.S. state of Michigan. In order to provide statistical information, the United States Census Bureau has defined Manitou Beach-Devils Lake as a census-designated place (CDP) that includes both communities. The statistical information pertains to the entire CDP, although local understanding of the area making up these communities may vary somewhat from the definition of the CDP. The population of the CDP was 2,080 at the 2000 census.
Devils Lake is at the northern end of Devils Lake on US 223 at 42°00′28″N 84°17′33″W / 42.00778°N 84.29250°W / 42.00778; -84.29250 (Devils Lake, Michigan). Manitou Beach is at the southwest end of Devils Lake at 41°58′11″N 84°18′30″W / 41.96972°N 84.30833°W / 41.96972; -84.30833 (Manitou Beach, Michigan), approximately 2.5 mi (4.0 km) southwest of Devils Lake and about 2 mi (3.2 km) east-southeast of Addison. The CDP also includes the entire shoreline areound Devils Lake and the smaller Round Lake to the southeast. The Manitou Beach post office, with ZIP code 49253, serves most of the area of the CDP except for an area on the southwest north of Manitou Beach Road and south of Bean Creek and a smaller area on the northern end of Devils Lake. Both of these areas are served by the Addison ZIP code 49220. The Manitou Beach ZIP code also serves areas beyond the CDP area, including parts of southeast Woodstock Township, southwest Cambridge Township, northeast Rome Township, and central and northeast Rollin Township.