Henderson -- U.S. County in Kentucky Population (2000): 44829 Housing Units (2000): 19466 Land area (2000): 440.124379 sq. miles (1139.916860 sq. km) Water area (2000): 27.111785 sq. miles (70.219199 sq. km) Total area (2000): 467.236164 sq. miles (1210.136059 sq. km) Located within: Kentucky (KY), FIPS 21 Location: 37.802623 N, 87.568076 W Headwords: Henderson Henderson, KY Henderson County Henderson County, KY