Uchiko is a town located in Kita District, Ehime Prefecture, Japan. As of 1 September 2023, the town had an estimated population of 15,153 in 7005 households and a population density of 52 persons per km2. The total area of the town is 299.43 square kilometres (115.61 sq mi).

Ehime Prefecture is a prefecture of Japan located on the island of Shikoku. Ehime Prefecture has a population of 1,334,841 and has a geographic area of 5,676 km2. Ehime Prefecture borders Kagawa Prefecture to the northeast, Tokushima Prefecture to the east, and Kōchi Prefecture to the southeast.