Warren -- U.S. County in Kentucky Population (2000): 92522 Housing Units (2000): 38350 Land area (2000): 545.211189 sq. miles (1412.090437 sq. km) Water area (2000): 2.479084 sq. miles (6.420798 sq. km) Total area (2000): 547.690273 sq. miles (1418.511235 sq. km) Located within: Kentucky (KY), FIPS 21 Location: 36.986914 N, 86.424550 W Headwords: Warren Warren, KY Warren County Warren County, KY