is a city located in Kōchi Prefecture, Japan. , the city had an estimated population of 19,292 in 9966 households, and a population density of 67 persons per km². The total area of the city is . Geography Sukumo is located in far western Kochi Prefecture on the island of Shikoku. The islands of Okinoshima and Urugushima, the only inhabited islands within Kochi prefecture and located within the city limits. Parts of the city are within the borders of the Ashizuri-Uwakai National Park. Neighbouring municipalities Kōchi Prefecture Tosashimizu Shimanto City Ōtsuki Mihara Ehime Prefecture Uwjima Ainan Climate Sukumo has a humid subtropical climate (Köppen climate classification Cfa) with hot, humid summers and cool winters. There is significant precipitation throughout the year, especially during June and July. The average annual temperature in Sukumo is . The average annual rainfall is with June as the wettest month. The temperatures are highest on average in August, at around , and lowest in January, at around . The highest temperature ever recorded in Sukumo was on 15 August 2020; the coldest temperature ever recorded was on 27 February 1981. Demographics Per Japanese census data, the population of Sukumo in 2020 is 19,033 people. Sukumo has been conducting censuses since 1920. History As with all of Kōchi Prefecture, the area of Sukumo was part of ancient Tosa Province. During the Edo period, the area was part of the holdings of Tosa Domain ruled by the Yamauchi clan from their seat at Kōchi Castle, and Sukumo itself was a castle town centered on an outlying fortification of the domain. Following the Meiji restoration, the village of Sukumo within Hata District, Kōchi with the creation of the modern municipalities system on April 1, 1889. It was elevated to town status on December 20, 1899. On March 31, 1954, Tsukumo merged with the neighboring town of Kozukuchi and the villages of Hashigama, Hirata, Yamana, and Okinoshima to form the city of Tsukumo Government Sukumo has a mayor-council form of government with a directly elected mayor and a unicameral city council of 14 members. Sukumo, together with Ōtsuki and Mihara contributes two members to the Kōchi Prefectural Assembly. In terms of national politics, the city is part of Kōchi 2nd district of the lower house of the Diet of Japan. Economy Sukumo is a regional commercial center, with a local economy is dominated by agriculture, forestry and commercial fishing.