Kōshū (甲州市 Kōshū-shi) is a city located in Yamanashi Prefecture, Japan. The city is synonymous with viticulture and wine production in Japan. As of November 2015, the city had an estimated population of 31,729 and a population density of 120 persons per km². The total area was 264.11 square kilometres (101.97 sq mi).

Planning a vacation to Yamanashi in Japan? This vacation planner will provide you with all the essential information you need. This city is located in the close proximity of a major city Tokyo, Japan. Attractions in Tokyo include Meiji Jingu Shrine, Ueno Park, Roppongi. Tour packages of Yamanashi are of 1 to 2 days duration.