Clinton -- U.S. County in Iowa Population (2000): 50149 Housing Units (2000): 21585 Land area (2000): 694.980313 sq. miles (1799.990672 sq. km) Water area (2000): 15.211188 sq. miles (39.396795 sq. km) Total area (2000): 710.191501 sq. miles (1839.387467 sq. km) Located within: Iowa (IA), FIPS 19 Location: 41.871169 N, 90.427404 W Headwords: Clinton Clinton, IA Clinton County Clinton County, IA