Newton is a city in and the county seat of Harvey County, Kansas, United States. As of the 2010 census, the city population was 19,132. Newton is located 25 miles (40 km) north of Wichita. The city of North Newton is located immediately north and exists as a separate political entity. Newton is located at the intersection of Interstate 135, U.S. Route 50, and U.S. Route 81 highways.
For millennia, the land now known as Kansas was inhabited by Native Americans. In 1803, most of modern Kansas was secured by the United States as part of the Louisiana Purchase. In 1854, the Kansas Territory was organized, then in 1861 Kansas became the 34th U.S. state. In 1872, Harvey County was founded.
In 1871, the Atchison, Topeka and Santa Fe Railway extended a main line from Emporia westward to Newton by July 1871.