is a town located primarily on Amami à Âshima, in à Âshima District, Kagoshima Prefecture, Japan.
As of 1 October 2020, the town had an estimated population of 8,546 and a population density of 35.62 persons per kmò. The total area was 239.91 kmò.
Setouchi occupies the southern portion of Amami à Âshima, facing the East China Sea to the east and the Pacific Ocean to the west. It also includes numerous offshore islands of Amami à Âshima, including the inhabited islands of Kakeromajima, Ukejima and Yoroshima.
The climate is classified as humid subtropical (Köppen climate classification Cfa) with very warm summers and mild winters. Precipitation is high throughout the year, but is highest in the months of May, June and September. The area is subject to frequent typhoons.
Higashikata Village was established on April 1, 1908. It became the town of Koniya on April 1, 1936. As with all of the Amami Islands, the village came under the administration of the United States from July 1, 1946 to December 25, 1953. On September 1, 1956 Koniya merged with three neighboring villages to form the town of Setouchi.
The town economy is primarily based on agriculture, with sugar cane and citrus horticulture as the main crops. Industries include shochu refining and commercial fishing.