Newton is a city situated in the state of Kansas, United States. It serves as the county seat for Harvey County. As of the 2020 census, the city had a population of 18,602.
The city is located approximately 25 miles north of Wichita. It sits at the intersection of Interstate 135, U.S. Route 50, and U.S. Route 81. The neighboring community of North Newton is located on the northern side of the city but exists as a separate entity.