McLean County is a county located in the U.S. state of Kentucky. As of the 2010 census, the population was 9,531. Its county seat is Calhoun. McLean is a prohibition or dry county. McLean County is part of the Owensboro, KY Metropolitan Statistical Area, which has a population of some 114,752.

Area: 256.2 mi²

Founded: 1854

Population: 9,100 (2021)

County seat: Calhoun

Cities: Calhoun, Livermore, Sacramento, Island, Beech Grove