Mabton is a city in Yakima County, Washington, United States. The population was 2,286 at the 2010 census. Incorporated during the first few years of the 20th century, it is located at the eastern edge of the Yakama Indian Reservation.
The Mabton area's original inhabitants were the Yakama people, who were forced onto a reservation in 1855. Mabton's existence as a town is due to the Northern Pacific Railway, which arrived in the area around 1884 and built a water tower and section house on the site. Nothing else existed at Mabton until 1892 when Sam P. Flower built a store and a warehouse. He soon became the town's first postmaster. Mabton was named by Charlie Sandburg, a Swedish railworker, who proposed Mabletown for the wife (or daughter) of a railroad official who had spoken kind words to track workers during an inspection. By 1895, Mabton had several stores, a hotel, a railroad depot and a schoolhouse. The Mabton Townsite Company, formed by Sam P. Flower and J.A. Humphrey, made the first plat in 1902, and by 1904, it had more than a dozen businesses and a newspaper. The town of Mabton officially incorporated on November 7, 1905.
Today, residents primarily are employed in occupations related to agriculture, especially hop growing and grape growing.