Boone -- U.S. County in Iowa Population (2000): 26224 Housing Units (2000): 10968 Land area (2000): 571.460217 sq. miles (1480.075104 sq. km) Water area (2000): 2.053112 sq. miles (5.317536 sq. km) Total area (2000): 573.513329 sq. miles (1485.392640 sq. km) Located within: Iowa (IA), FIPS 19 Location: 42.045378 N, 93.922512 W Headwords: Boone Boone, IA Boone County Boone County, IA