The area of present-day Obanazawa was part of ancient
Dewa Province. After the start of the
Meiji period, the area became part of
Kitamurayama District, Yamagata Prefecture. The village of Obanazawa was established on April 1, 1889 with the establishment of the modern municipalities system, and was raised to town status on July 26, 1897. It was made a city on April 10, 1959. Obanazawa is the origin of one version of the Dontsuki song, the 'Hanagasa Dance Song', a song sung in many parts of Yamagata Prefecture. ==Government==