The area of Oaza Nishi Umezu was reorganized into six towns which were prefixed by the name 'Umezu' (Fushiharacho, Fukenokawacho, Maedacho, Nakakuracho, Shirimizocho and Onawaba-cho).
大字西梅津の区域は「梅津」を冠称する6町（罧原町、フケノ川町、前田町、中倉町、尻溝町、大縄場町）となった。