As with all of Tokushima Prefecture, the area of Higashimiyoshi was part of ancient
Awa Province.
Miyoshi District is mentioned in
Heian period records, and from the
Muromachi period, was the home territory of the
Miyoshi clan. During the
Edo period, the area was part of the holdings of
Tokushima Domain ruled by the
Hachisuka clan from their seat at
Tokushima Castle. The village of Hiruma (昼間町) was established within Miyoshi District with the creation of the modern municipalities system on October 1, 1889. It was raised to town status on October 1, 1925. After merging with the village of Ashiru on March 21, 1955, it became the town of
Miyoshi. On March 1, 2006, Miyoshi merged with the town of
Mikamo to form the town of Higashimiyoshi. ==Government==