Newton -- U.S. County in Missouri Population (2000): 52636 Housing Units (2000): 21897 Land area (2000): 626.416626 sq. miles (1622.411544 sq. km) Water area (2000): 0.243633 sq. miles (0.631006 sq. km) Total area (2000): 626.660259 sq. miles (1623.042550 sq. km) Located within: Missouri (MO), FIPS 29 Location: 36.904767 N, 94.367818 W Headwords: Newton Newton, MO Newton County Newton County, MO