Lake Kasumigaura
Tsukubamirai is located in southern Ibaraki Prefecture, in the low-lying marshy flatlands south of Lake Kasumigaura. It is about 40 kilometers from central Tokyo. The elevation of the city is about 5 to 25 meters above sea level. The Kinugawa River and Kokaigawa rivers flow through the city. The eastern and western parts are hilly.