Kenton is a city in and the county seat of Hardin County, Ohio, United States, along the Scioto River. The population was 8,262 at the 2010 census. It is named for Kentucky/Ohio frontiersman, Simon Kenton. It is the seat of Hardin County. In 1845 Kenton was incorporated as a village, and became a city in 1886. Kenton is named after frontiersman Simon Kenton. It started out as a center for agriculture trade, then in the late 19th century developed industry common to 19th century America. Kenton was home to the Gene Autry toy cap gun manufacturing plant for some time.