Tsugaru clan
The area around Nakadomari was controlled by the Tsugaru clan of Hirosaki Domain during the Edo period. With the establishment of the modern municipalities system on April 1, 1889, the villages of Nakasato and Komadari were created within Kitatsugaru District, Aomori. The town of Nakadomari was created on March 28, 2005 as a result of the merger of these two municipalities.