As of 2003[update], the district comprises the former districts of Motosu, Mushiroda (席田郡), parts of Katagata (方県郡), and parts of Ōno (大野郡, not to be confused with Ōno District in Hida region)
May 1, 2003-The towns of Sunami and Hozumi merged to form the new city of Mizuho.
The town of Kitagata was scheduled to merge with the city of Gifu but the deal was cancelled on August 31, 2004.
Notes
^岐阜県の人口・世帯数人口動態統計調査結果. Gifu prefectural website (in Japanese). Gifu Prefecture. Archived from the original on January 7, 2019. Retrieved September 11, 2011.