Sullivan -- U.S. County in Missouri Population (2000): 7219 Housing Units (2000): 3364 Land area (2000): 650.948686 sq. miles (1685.949286 sq. km) Water area (2000): 0.480387 sq. miles (1.244196 sq. km) Total area (2000): 651.429073 sq. miles (1687.193482 sq. km) Located within: Missouri (MO), FIPS 29 Location: 40.209880 N, 93.133984 W Headwords: Sullivan Sullivan, MO Sullivan County Sullivan County, MO