Hutchinson is the largest city and county seat in Reno County, Kansas, United States, and located on the Arkansas River. It has been home to salt mines since 1887, thus its nickname of "Salt City", but locals call it "Hutch". As of the 2020 census, the population of the city was 40,006. Each year, Hutchinson hosts the Kansas State Fair, and National Junior College Athletic Association Basketball Tournament. It is the home of the Kansas Cosmosphere and Space Center aerospace museum and Strataca.