Kirishima (霧島市 Kirishima-shi) is a city located in Kagoshima Prefecture, Japan. Kirishima has the second largest population of the cities in Kagoshima Prefecture. It is a crossroads for commerce between Kagoshima and Miyazaki Prefectures. It is also the home of the Kagoshima Airport, the terminus for the JR Hisatsu line, and is served by two major expressways. The former Kokubu-Hayato area was designated as a "Technopolis" as high-tech industries such as Sony and Kyocera opened facilities in the city. As of 1 October 2020, the city has a population of 123,205 with 58,159 households and a population density of 204.3 inhabitants per square kilometre. The total area is 603.18 km2. The modern city of Kirishima was established on 7 November 2005, from the merger of the city of Kokubu, and the towns of Fukuyama, Hayato, Kirishima (former), Makizono, Mizobe and Yokogawa (all from Aira District). The Uenohara site dates from the Jōmon period. Shrines include Kirishima-Jingū.