Newton -- U.S. County in Indiana Population (2000): 14566 Housing Units (2000): 5726 Land area (2000): 401.848712 sq. miles (1040.783341 sq. km) Water area (2000): 1.684840 sq. miles (4.363716 sq. km) Total area (2000): 403.533552 sq. miles (1045.147057 sq. km) Located within: Indiana (IN), FIPS 18 Location: 40.951375 N, 87.402193 W Headwords: Newton Newton, IN Newton County Newton County, IN