Minamisaku District, Nagano

• Kawakami
• Kitaaiki
• Koumi
• Minamiaiki
• Minamimaki
• Sakuho

  District Timeline (post World War II)

• April 1, 1954 - The municipalities of Nozawa, Sakurai, Kishino, Maeyama, and Osawa merged to form the town of Nozawa.
• February 1, 1955 - The villages of Sakae and Umise merged to form the town of Saku.
• August 1, 1955 - The town of Usuda merged with the village of Kirihara to form the town of Usuda.
• August 1, 1956 - The municipalities of Nakagomi, Hiraga, and Uchimura merged to form the town of Nakagoshi.
• September 30, 1956
• *The village of Ohyuga merged into the town of Saku.
• *The villages of Taguchi and Aonuma merged to form the village of Taguchiaonuma.
• *The town of Koumi merged with the village of Hokuboku to form the town of Koumi.
• April 1, 1957 - The village of Taguchiaonuma merged with the town of Usuda to form the town of Usuda.
• March 25, 1958 - Parts of the town of Koumi merged into the village of Yachiho.
• April 1, 1959 - Parts of the town of Usuda merged into the town of Saku.
• April 1, 1961 - The towns of Nozawa and Nakagomi merged with the municipalities of Asama and Azuma from Kitasaku District to form the city of Saku.
• March 20, 2005 - The town of Saku and the village of Yachiho merged to form the new town of Sakuho.
• April 1, 2005 - The town of Usuda merged with the town of Mochizuki, the village of Asashina, from Kitasaku District, and the old city of Saku to form the new city of Saku.