Hancock -- U.S. County in Mississippi Population (2000): 42967 Housing Units (2000): 21072 Land area (2000): 476.876818 sq. miles (1235.105235 sq. km) Water area (2000): 75.649789 sq. miles (195.932047 sq. km) Total area (2000): 552.526607 sq. miles (1431.037282 sq. km) Located within: Mississippi (MS), FIPS 28 Location: 30.358127 N, 89.462457 W Headwords: Hancock Hancock, MS Hancock County Hancock County, MS