the new and expanded city of Koga. The new city hall is now located at the former town of Sōwa. Government Koga has a mayor-council form of government with a directly elected mayor and a unicameral city council of 24 members. Koga contributes three members to the Ibaraki Prefectural Assembly. In terms of national politics, the city is part of Ibaraki 7th district of the lower house of the Diet of Japan. Economy Koga was known in the Meiji era through the prewar Shōwa era as a center for sericulture. At present, the economy is highly industrialized, with the number of factories as second within Ibaraki Prefecture, after Hitachi city. Education Koga has 23 public elementary schools and nine public middle schools operated by the city government, and five public high schools operated by the Ibaraki Prefectural Board of Education. In addition, there is one private high school. Transportation bus JR East – Tōhoku Main Line Highway Sister city relations – Sanhe, Hebei, China Local attractions site of Koga Castle site of Koga Kubo residence Suzume-jinja Hase Kannon temple Koga History Museum Sogo Koen Park, near the Watarase River, was formally a summer palace for a local daimyo. It has two restored 17th century farmhouses, like including the Nakayama house and Takami Senseki house/museum. Navel Park in Sowa-machi has outdoor and barbecue facilities for families. Koga west of the station is old and has many old buildings. Many of the streets are cobbled. Tenkoku Art Museum. Notable people Hideo Jinpu, politician Kawanabe Kyōsai, artist Okuhara Seiko, artist Reiko Okano, manga artist Koji Yamamuro, Olympic gymnast References External links Official Website Cities in Ibaraki Prefecture Koga, Ibaraki