Kōnan (香南市, Kōnan-shi) is a city located in Kōchi Prefecture, Japan. As of 30 June 2022, the city had an estimated population of 33,076 in 15350 households and a population density of 49 persons per km. The total area of the city is 126.46 square kilometres (48.83 sq mi).
Kōchi Prefecture (高知県, Kōchi-ken; Japanese pronunciation:[koꜜː.tɕi,koː.tɕi̥ꜜ.keɴ], locally[koː.tɕi]) is a prefecture of Japan located on the island of Shikoku. Kōchi Prefecture has a population of 669,516 (1 April 2023) and has a geographic area of 7,103 km (2,742 sq mi). Kōchi Prefecture borders Ehime Prefecture to the northwest and Tokushima Prefecture to the northeast.
Kōchi is the capital and largest city of Kōchi Prefecture, with other major cities including Nankoku, Shimanto, and Kōnan. Kōchi Prefecture is located on Japan's Pacific coast surrounding a large bay in the south of Shikoku, with the southernmost point of the island located at Cape Ashizuri in Tosashimizu. Kōchi Prefecture is home to Kōchi Castle, considered the most intact Japanese castle, and the Shimanto River, one of the few undammed rivers in Japan.