Map showing original extent of Kitasaku District in Nagano Prefecture:
* yellow - areas formerly within the district borders during the early Meiji period
Karuizawa-machi
Miyota-machi
Tateshina-machi
Colored areas are in this district.
District Timeline
Recent mergers
On April 1, 2004 - The village of Kitamimaki was merged with the town of Tōbu (from Chiisagata District) to form the new city of Tōmi.[1]
On April 1, 2005 - The town of Mochizuki and the village of Asashina were merged with the town of Usuda (from Minamisaku District) and the old city of Saku to form the new city of Saku.[2]