Boaco (Spanish pronunciation: [boˈa.ko]) is a department in Nicaragua. It was formed in 1938 out of part of Chontales Department. It covers an area of 4,177 km2 and has a population of 186,284 (2021 estimate). The capital is the city of Boaco. Indigenous peoples are the Nahuas and Sumos.
12°28′N 85°40′W / 12.467°N 85.667°W / 12.467; -85.667