The area of Nishitsugaru District was formerly part of
Mutsu Province. At the time of the
Meiji restoration of 1868, the area consisted of one towns (Ajigasawa) and 218 villages, all formerly under the control of
Hirosaki Domain. Aomori Prefecture was founded on December 13, 1871, and Nishitsugaru District was carved out for former Tsugaru District on October 30, 1878. With the establishment of the municipality system on April 1, 1889, Nishitsugaru District, was organized into one town (Ajigasawa) and 19 villages were established. • 1905 - Kizukuri was elevated to town status. • 1926 - Fukaura was elevated to town status. • 1955 – Mizumoto and Jusan villages were transferred to
Kitatsugaru District • On February 11, 2005 the town of
Kizukuri and the villages of
Inagaki,
Kashiwa,
Morita, and
Shariki merged forming the new city of
Tsugaru. • On March 31, 2005 the village of
Iwasaki merged into the town of
Fukaura. ==References==