is a city located in Yamanashi Prefecture, Japan. , the city had an estimated population of 29,659 in 13,141 households, and a population density of 120 persons per kmò. The total area of the city is . The city is the home of the indigenous Koshu grape and is synonymous with viticulture and wine production in Japan.
Kà Âshà « is in northeastern Yamanashi Prefecture, occupying the eastern portion of the Kofu Basin. Parts of the city are within the borders of the Chichibu Tama Kai National Park. The peak of Mount Daibosatsu, at 2,057 meters, is within the city limits.
The city has a climate characterized by characterized by hot and humid summers, and relatively mild winters (Köppen climate classification Cfa). The average annual temperature in Kà Âshà « is 10.1 ðC. The average annual rainfall is 1477 mm with September as the wettest month. The temperatures are highest on average in August, at around 22.5 ðC, and lowest in January, at around -1.8 ðC.
Per Japanese census data, the population of Kà Âshà « has declined in recent decades.
Kà Âshà « is located near the center of ancient Kai Province and contains many ruins from the Jà Âmon period and burial mounds from the Kofun period. During the Heian period, the area was developed in shà Âen under control of the Minamoto clan, which devolved into feudal holdings by the Nikaido clan and later the Takeda clan from the Kamakura through Sengoku periods. During the Edo period, all of Kai Province was tenryà  territory under direct control of the Tokugawa shogunate. Following the Meiji restoration, the area was organized into villages within Yamanashi District of Yamanashi Prefecture, which was later divided into Higashiyamanashi District and Nishiyamanashi District Many of these villages were consolidated into the city of Enzan, the town of Katsunuma, and the village of Yamato by April 1, 1955. The modern city of Kà Âshà « was established on November 1, 2005, from the merger of these three municipalities.
Kà Âshà « has a mayor-council form of government with a directly elected mayor and a unicameral city legislature of 18 members. The city supplies two members to the Yamanashi Prefectural Assembly.
Most of the area of the city is agricultural, and is especially known for its production of peaches, grapes and wine.
Kà Âshà « has 14 public elementary schools and six public junior high schools operated by the city government and one public high school operated by the Yamanashi Prefectural Board of Education. Then prefectural also operates the Yamanashi Industrial Technology Junior College.
Every year in autumn the "Koshu Fruit Marathon" is held. While it is called a "marathon" (the word is commonly used in Japan to describe races of varying distances) it actually consists of several shorter races, a 3.5 family race, a 10 km race, a half-marathon, and a 23 km race.