Chickasaw -- U.S. County in Iowa Population (2000): 13095 Housing Units (2000): 5593 Land area (2000): 504.643640 sq. miles (1307.020971 sq. km) Water area (2000): 0.840486 sq. miles (2.176848 sq. km) Total area (2000): 505.484126 sq. miles (1309.197819 sq. km) Located within: Iowa (IA), FIPS 19 Location: 43.051169 N, 92.322842 W Headwords: Chickasaw Chickasaw, IA Chickasaw County Chickasaw County, IA