Showa-machi(05362), Iitagawa-machi(05364) and Tenno-machi(05365) in Minamiakita-gun are merged, and Katagami-shi(05211) is newly established.
昭和町(05362)、飯田川町(05364)、天王町(05365)が合併し、潟上市(05211)を新設