Kankakee -- U.S. County in Illinois Population (2000): 103833 Housing Units (2000): 40610 Land area (2000): 676.749124 sq. miles (1752.772109 sq. km) Water area (2000): 4.695793 sq. miles (12.162047 sq. km) Total area (2000): 681.444917 sq. miles (1764.934156 sq. km) Located within: Illinois (IL), FIPS 17 Location: 41.137091 N, 87.842340 W Headwords: Kankakee Kankakee, IL Kankakee County Kankakee County, IL