Newton -- U.S. County in Mississippi Population (2000): 21838 Housing Units (2000): 9259 Land area (2000): 578.032561 sq. miles (1497.097396 sq. km) Water area (2000): 1.546628 sq. miles (4.005749 sq. km) Total area (2000): 579.579189 sq. miles (1501.103145 sq. km) Located within: Mississippi (MS), FIPS 28 Location: 32.405252 N, 89.118310 W Headwords: Newton Newton, MS Newton County Newton County, MS