Yufu is a city located in ita Prefecture, Japan. The city was founded on October 1, 2005 as a result of the merger between the towns of Hasama, Shnai and Yufuin, all from ita District. As of October 1, 2007, the city has an estimated population of 35,338 and a density of 111 persons per Square kilometer. The total area is 319.16 Square kilometers. Yufu is located in central ita Prefecture, surrounded by highly elevated mountains, such as Yufudake (1583 m), Shirogatake, and Tokiyama . The ita River created a alluvial fan, where farming is done. Part of the city is named as a portion of Aso Kuj National Park. Also, Yufu is known for its many hot springs.