Mergers before April 1, 1999

• On June 1, 1993 - The town of Kamisato
  Kamisato, Nagano
  was a town located in Shimoina District, Nagano, Japan.On June 1, 1993, Kamisato was merged into the city of Iida....
  
   (from Shimoina District
  Shimoina District, Nagano
  is a district located in Nagano Prefecture, Japan.As of May, 2008, the district has an estimated Population of 65,359 and a Density of 51.4 persons/km²...
  
  ) was merged into the expanded city of Iida
  Iida, Nagano
  is a city located in southern Nagano Prefecture, Japan.Located on the Iida Line, an old local train line that runs through the valley of the Tenryū River in the southern Japan Alps, Iida lies 90 minutes northeast of the major city of Nagoya by automobile via the Chūō Expressway...
  
  .

Mergers from April 1, 1999 to Present

• On September 1, 2003 - The city of Koshoku, the town of Kamiyamada from Sarashina District
  Sarashina District, Nagano
  Sarashina was a district located in Nagano Prefecture, Japan.As of 2003, the district had an estimated population of 1,467 and a density of 31.99 persons per km²...
  
   and the village of Togura from Hanishina District
  Hanishina District, Nagano
  Hanishina is a district located in Nagano Prefecture, Japan.As of December 1, 2005, the district has an estimated population of 16,742...
  
   merged to form the city of Chikuma
  Chikuma, Nagano
  is a city located in Nagano, Japan.As of June 1, 2006, the city has an estimated population of 63,829. The total area is 119.84 km².-Description:...
  
  .

• On April 1, 2004 - The village of Kitamimaki from Kitasaku District
  Kitasaku District, Nagano
  is a district located in Nagano Prefecture, Japan.As of December 1, 2005, the district has an estimated population of 40,041.The district has three towns*Karuizawa*Miyota*Tateshina-District Timeline:...
  
   and the town of Tōbu
  Tobu, Nagano
  was a town located in Chiisagata District, Nagano, Japan.As of March 1, 2004, the town had an estimated population of 26,392 and a density of 304.93 persons per km². The total area was 86.55 km2....
  
   from Chiisagata District
  Chiisagata District, Nagano
  Chiisagata is a district located in Nagano Prefecture, Japan.As of February 1, 2006, the district has an estimated population of 12,039...
  
   merged to form the new city of Tōmi
  Tomi, Nagano
  is a city located in Nagano Prefecture, Japan.The city was founded on April 1, 2004, when the village of Kitamimaki from Kitasaku District and the town of Tōbu from Chiisagata District merged to form a new city....
  
  .

• On January 1, 2005 - The village of Ōoka
  Ooka, Nagano
  was a village located in Sarashina District, Nagano, Japan.On January 1, 2005 Ōoka, along with the town of Toyono, and the villages of Togakushi and Kinasa, all from Kamiminochi District, was merged into the city of Nagano....
  
   from Sarashina District
  Sarashina District, Nagano
  Sarashina was a district located in Nagano Prefecture, Japan.As of 2003, the district had an estimated population of 1,467 and a density of 31.99 persons per km²...
  
  , the town of Toyono
  Toyono, Nagano
  was a town located in Kamiminochi District, Nagano, Japan.On January 1, 2005 Toyono, along with the village of Ōoka, from Sarashina District, and the villages of Togakushi and Kinasa, all from Kamiminochi District, was merged into the city of Nagano....
  
   and the villages of Togakushi
  Togakushi, Nagano
  was a village located in Kamiminochi District, Nagano Prefecture, Japan.On January 1, 2005 Togakushi, along with the village of Ōoka, from Sarashina District, the town of Toyono, and the village of Kinasa, all from Kamiminochi District, was merged into the city of Nagano.As of 2003, the village had...
  
   and Kinasa
  Kinasa, Nagano
  was a village located in Kamiminochi District, Nagano, Japan.On January 1, 2005 Kinasa, along with the village of Ōoka, from Sarashina District, the town of Toyono, and the village of Togakushi, all from Kamiminochi District, was merged into the city of Nagano....
  
   (all three from Kamiminochi District
  Kamiminochi District, Nagano
  is a district located in Nagano Prefecture, Japan.As of 2011, the district has an estimated population of 23,774. As a result of mergers the total area of the district is now 282.65 km².- Towns and villages :*Iizuna*Ogawa*Shinano- Mergers :...
  
  ) merged into the city of Nagano
  Nagano, Nagano
  , the capital city of Nagano Prefecture, is located in the northern part of the prefecture near the confluence of the Chikuma and the Sai rivers, on the main Japanese island of Honshū.As of April 1, 2011 the city has a population of 387,146...
  
  . Sarashina District
  Sarashina District, Nagano
  Sarashina was a district located in Nagano Prefecture, Japan.As of 2003, the district had an estimated population of 1,467 and a density of 31.99 persons per km²...
  
   was dissolved as a result.

• On February 13, 2005 - The village of Yamaguchi
  Yamaguchi, Nagano
  was a village located in Kiso District, Nagano, Japan.On February 13, 2005 Yamaguchi, along the towns of Fukuoka, Sakashita and Tsukechi, the villages of Hirukawa, Kashimo and Kawaue, all from Ena District, Gifu, was merged into the expanded city of Nakatsugawa in Gifu Prefecture and no longer...
  
   from Kiso District
  Kiso District, Nagano
  is a district located in Nagano Prefecture, Japan.As of November 1, 2005, the district has an estimated population of 34,759. The total area is 1,546.26 km².Historically, the district was once known as Nishichikuma District until May 1, 1968....
  
   merged into the city of Nakatsugawa
  Nakatsugawa, Gifu
  is a city located in the Tōnō region of Gifu Prefecture, Japan. The city was founded on April 1, 1952.-History:During Japan's Edo period, Nakatsugawa was a post town, known as Nakatsugawa-juku, one of the 69 Stations of the Nakasendō along the Nakasendō. The travel route ran from the Nihonbashi in...
  
  , Gifu
  Gifu Prefecture
  is a prefecture located in the Chūbu region of central Japan. Its capital is the city of Gifu.Located in the center of Japan, it has long played an important part as the crossroads of Japan, connecting the east to the west through such routes as the Nakasendō...
  
  .

• On March 20, 2005 - The town of Saku and the village of Yachiho
  Yachiho, Nagano
  was a village located in Minamisaku District, Nagano, Japan.On March 20, 2005 Yachiho was merged with the town of Saku, also from Minamisaku District, to form the new town of Sakuho....
  
   from Minamisaku District
  Minamisaku District, Nagano
  is a district located in Nagano Prefecture, Japan.As of December 1, 2005, the district has an estimated population of 29,263. As of December 2005, the district have two towns and four villages.*Kawakami*Kitaaiki*Koumi*Minamiaiki*Minamimaki*Sakuho...
  
   merged to form the new town of Sakuho
  Sakuho, Nagano
  is a town located in Minamisaku District, Nagano, Japan.On March 20, 2005 the town of Saku, and the village of Yachiho, both from Minamisaku District, to form the new town of Sakuho....
  
  .

• On April 1, 2005 - The city of Saku
  Saku, Nagano
  is a city located in Nagano, Japan.Due to the refounding of Saku back on April 1, 2005, the city became the fifth city in Nagano Prefecture to go over 100,000...
  
  , the town of Usuda
  Usuda, Nagano
  was a town located in Minamisaku District, Nagano, Japan.On April 1, 2005 Usuda, along with the town of Mochizuki, and the village of Asashina, both from Kitasaku District, was merged into the expanded city of Saku....
  
   from Minamisaku District
  Minamisaku District, Nagano
  is a district located in Nagano Prefecture, Japan.As of December 1, 2005, the district has an estimated population of 29,263. As of December 2005, the district have two towns and four villages.*Kawakami*Kitaaiki*Koumi*Minamiaiki*Minamimaki*Sakuho...
  
  , and the town of Mochizuki
  Mochizuki, Nagano
  was a town located in Kitasaku District, Nagano, Japan.On April 1, 2005 Mochizuki, along with the town of Usuda, from Minamisaku District, and the village of Asashina, from Kitasaku District, was merged into the expanded city of Saku....
  
   and the village of Asashina
  Asashina, Nagano
  was a village located in Kitasaku District, Nagano, Japan.On April 1, 2005 Asashina, along with the town of Usuda, from Minamisaku District, and the town of Mochizuki, from Kitasaku District, was merged into the expanded city of Saku....
  
   (both from Kitasaku District
  Kitasaku District, Nagano
  is a district located in Nagano Prefecture, Japan.As of December 1, 2005, the district has an estimated population of 40,041.The district has three towns*Karuizawa*Miyota*Tateshina-District Timeline:...
  
  ) merged to form the city of Saku
  Saku, Nagano
  is a city located in Nagano, Japan.Due to the refounding of Saku back on April 1, 2005, the city became the fifth city in Nagano Prefecture to go over 100,000...
  
  .

• On April 1, 2005 - The village of Narakawa
  Narakawa, Nagano
  was a village located in Kiso District, Nagano, Japan.On April 1, 2005 Narakawa was merged into the city of Shiojiri.As of October 1, 2004, the former village had an estimated population of 3,393...
  
   from Kiso District
  Kiso District, Nagano
  is a district located in Nagano Prefecture, Japan.As of November 1, 2005, the district has an estimated population of 34,759. The total area is 1,546.26 km².Historically, the district was once known as Nishichikuma District until May 1, 1968....
  
   merged into the city of Shiojiri
  Shiojiri, Nagano
  is a city located in Nagano, Japan. Its name literally means "the end of salt".-History:Municipal Area Changes* April 1, 1927-The village of Shiojiri gained town status....
  
  .

• On April 1, 2005 - The city of Nakano
  Nakano, Nagano
  is a city located in Nagano, Japan, located in the northern portion of the prefecture.As of April 1, 2008, the city has an estimated population of 46,114 and the density of 411.51 persons per km². The total area is 112.06 km²....
  
   and the village of Toyota
  Toyota, Nagano
  was a village located in Shimominochi District, Nagano, Japan.On April 1, 2005 Toyota was merged into the city of Nakano.As of 2003, the village had an estimated population of 5,116 and a density of 147.27 persons per km². The total area was 34.74 km²....
  
   from Shimominochi District
  Shimominochi District, Nagano
  Shimominochi is a district located in Nagano Prefecture, Japan.As of 2003, the district has an estimated population of 7,643 and a density of 24.96 persons per km². The total area is 306.25 km².-Mergers:...
  
   merged to form the city of Nakano
  Nakano, Nagano
  is a city located in Nagano, Japan, located in the northern portion of the prefecture.As of April 1, 2008, the city has an estimated population of 46,114 and the density of 411.51 persons per km². The total area is 112.06 km²....
  
  .

• On April 1, 2005 - The village of Shiga
  Shiga, Nagano
  was a village located in Higashichikuma District, Nagano, Japan.On April 1, 2005 Shiga, along with the villages of Nagawa, Azumi and Azusagawa, all from Minamiazumi District, was merged into the city of Matsumoto....
  
   from Higashichikuma District
  Higashichikuma District, Nagano
  is a district located in Nagano Prefecture, Japan.As of October 1, 2011, the district has an estimated population of 23,044. The total area is 268.42 km²...
  
  , and the villages of Nagawa, Azumi and Azusagawa
  Azusagawa, Nagano
  was a village located in Minamiazumi District, Nagano, Japan.On April 1, 2005 Azusagawa, along with the village of Shiga, from Higashichikuma District, and the villages of Nagawa and Azumi, all from Minamiazumi District, was merged into the city of Matsumoto....
  
   from Minamiazumi District
  Minamiazumi District, Nagano
  Minamiazumi was a district located in Nagano Prefecture, Japan.As of 2003, the district had an estimated population of 99,785 and a density of 117.22 persons per km²...
  
   merged into the city of Matsumoto
  Matsumoto, Nagano
  is a city located in Nagano Prefecture, Japan. Matsumoto is designated as a Special City.-Outline:The new city of Matsumoto is the city comprising the mergers of the old city of Matsumoto and four villages. Matsumoto officially absorbed those villages without creating a new municipal...
  
  .

• On October 1, 2005 - The villages of Mure
  Mure, Nagano
  was a village located in Kamiminochi District, Nagano, Japan.On October 1, 2005 Mure was merged with the village of Samizu, also from Kamiminochi District, to form the new town of Iizuna....
  
   and Samizu
  Samizu, Nagano
  was a village located in Kamiminochi District, Nagano, Japan.On October 1, 2005 Samizu was merged with the village of Mure, also from Kamiminochi District, to form the new town of Iizuna....
  
   from Kamiminochi District
  Kamiminochi District, Nagano
  is a district located in Nagano Prefecture, Japan.As of 2011, the district has an estimated population of 23,774. As a result of mergers the total area of the district is now 282.65 km².- Towns and villages :*Iizuna*Ogawa*Shinano- Mergers :...
  
   merged to form the new town of Iizuna
  Iizuna, Nagano
  is a town located in the north side of Nagano City, Kamiminochi District, Nagano, Japan.The town was created through a merger of the villages of Samizu and Mure on October 1, 2005....
  
  .

• On October 1, 2005 - The town of Akashina
  Akashina, Nagano
  was a town located in Higashichikuma District, Nagano, Japan.On October 1, 2005 Akashina was merged with the towns of Hotaka and Toyoshina, and the villages of Horigane and Misato, all from Minamiazumi District, to form the new city of Azumino....
  
   from Higashichikuma District
  Higashichikuma District, Nagano
  is a district located in Nagano Prefecture, Japan.As of October 1, 2011, the district has an estimated population of 23,044. The total area is 268.42 km²...
  
  , and the towns and villages of Horigane
  Horigane, Nagano
  was a village located in Minamiazumi District, Nagano, Japan.On October 1, 2005 Horigane was merged with the town of Akashina, from Higashichikuma District, the towns of Hotaka and Toyoshina, and the village of Misato, all from Minamiazumi District, to form the new city of Azumino.As of 2003, the...
  
  , Hotaka
  Hotaka, Nagano
  was a town located in Minamiazumi District, Nagano, Japan.On October 1, 2005 Hotaka was merged with the town of Akashina, from Higashichikuma District, the town of Toyoshina, and the villages of Horigane and Misato, all from Minamiazumi District, to form the new city of Azumino.As of 2003, the town...
  
  , Misato
  Misato, Nagano
  was a village located in Minamiazumi District, Nagano, Japan.On October 1, 2005 Misato was merged with the town of Akashina, from Higashichikuma District, the towns of Hotaka and Toyoshina, and the village of Horigane, all from Minamiazumi District, to form the new city of Azumino.As of 2003, the...
  
   and Toyoshina
  Toyoshina, Nagano
  was a town located in Minamiazumi District of Nagano Prefecture, Japan.On October 1, 2005 Toyoshina was merged with the town of Akashina, from Higashichikuma District, the town of Hotaka, and the villages of Horigane and Misato, all from Minamiazumi District, to form the new city of Azumino.As of...
  
   from Minamiazumi District
  Minamiazumi District, Nagano
  Minamiazumi was a district located in Nagano Prefecture, Japan.As of 2003, the district had an estimated population of 99,785 and a density of 117.22 persons per km²...
  
   merged to form the new city of Azumino
  Azumino, Nagano
  is a city located in Nagano Prefecture, Japan.The city was founded on October 1, 2005, when the town of Akashina, from Higashichikuma District, and the towns of Hotaka and Toyoshina, and the villages of Horigane and Misato, from Minamiazumi District, merged to form a new city...
  
  . Minamiazumi District
  Minamiazumi District, Nagano
  Minamiazumi was a district located in Nagano Prefecture, Japan.As of 2003, the district had an estimated population of 99,785 and a density of 117.22 persons per km²...
  
   was dissolved as a result.

• On October 1, 2005 - The villages of Kami
  Kami, Nagano
  was a village located in Shimoina District, Nagano, Japan.On October 1, 2005, Kami, along with the village of Minamishinano, was merged into the city of Iida....
  
   and Minamishinano
  Minamishinano, Nagano
  was a village located in Shimoina District, Nagano, Japan.On October 1, 2005, Minamishinano, along with the village of Kami, was merged into the city of Iida....
  
   from Shimoina District
  Shimoina District, Nagano
  is a district located in Nagano Prefecture, Japan.As of May, 2008, the district has an estimated Population of 65,359 and a Density of 51.4 persons/km²...
  
   merged into the city of Iida
  Iida, Nagano
  is a city located in southern Nagano Prefecture, Japan.Located on the Iida Line, an old local train line that runs through the valley of the Tenryū River in the southern Japan Alps, Iida lies 90 minutes northeast of the major city of Nagoya by automobile via the Chūō Expressway...
  
  .

• On October 1, 2005 - The town of Nagato
  Nagato, Nagano
  was a town located in Chiisagata District, Nagano, Japan.On October 1, 2005 Nagato was merged with the village of Wada, also from Chiisagata District, into the new town of Nagawa....
  
   and the village of Wada
  Wada, Nagano
  was a village located in Chiisagata District, Nagano, Japan.On October 1, 2005 Wada was merged with the village of Nagato, also from Chiisagata District, into the new town of Nagawa....
  
   from Chiisagata District
  Chiisagata District, Nagano
  Chiisagata is a district located in Nagano Prefecture, Japan.As of February 1, 2006, the district has an estimated population of 12,039...
  
   merged to form the new town of Nagawa
  Nagawa, Nagano
  is a town located in Chiisagata District, Nagano Prefecture, Japan.The town was founded on October 1, 2005 when the town of Nagato and the village of Wada from Chiisagata District merged....
  
  .

• On October 11, 2005 - The villages of Honjō
  Honjo, Nagano
  was a village located in Higashichikuma District, Nagano, Japan.As of 2003, the village had an estimated population of 2,148 and a density of 66.46 persons per km². The total area was 32.32 km²....
  
  , Sakakita
  Sakakita, Nagano
  was a village located in Higashichikuma District, Nagano, Japan.As of 2003, the village had an estimated population of 2,139 and a density of 71.85 persons per km². The total area was 29.77 km²....
  
   and Sakai
  Sakai, Nagano
  was a village located in Higashichikuma District, Nagano, Japan.As of 2003, the village had an estimated population of 1,588 and a density of 42.45 persons per km². The total area was 37.41 km²....
  
   from Higashichikuma District
  Higashichikuma District, Nagano
  is a district located in Nagano Prefecture, Japan.As of October 1, 2011, the district has an estimated population of 23,044. The total area is 268.42 km²...
  
   merged to form the new village of Chikuhoku
  Chikuhoku, Nagano
  is a village located in Higashichikuma District, Nagano Prefecture, Japan.The village was incorporated on October 11, 2005 by a merger of three villages, namely Honjō, Sakakita, and Sakai....
  
  .

• On November 1, 2005 - The villages of Kisofukushima
  Kisofukushima, Nagano
  was a town located in Kiso District, Nagano, Japan.On November 1, 2005 Kisofukushima was merged with the villages of Mitake, Hiyoshi and Kaida, all from Kiso District, to form the new town of Kiso....
  
  , Mitake
  Mitake, Nagano
  was a village located in Kiso District, Nagano, Japan.On November 1, 2005 Mitake was merged with the town of Kisofukushima, and the villages of Hiyoshi and Kaida, all from Kiso District, to form the new town of Kiso....
  
  , Hiyoshi
  Hiyoshi, Nagano
  was a village located in Kiso District, Nagano, Japan.On November 1, 2005 Hiyoshi was merged with the town of Kisofukushima, and the villages of Mitake and Kaida, all from Kiso District, to form the new town of Kiso....
  
   and Kaida
  Kaida, Nagano
  was a village located in Kiso District, Nagano, Japan.On November 1, 2005 Kaida was merged with the town of Kisofukushima, and the villages of Mitake and Hiyoshi, all from Kiso District, to form the new town of Kiso....
  
   from Kiso District
  Kiso District, Nagano
  is a district located in Nagano Prefecture, Japan.As of November 1, 2005, the district has an estimated population of 34,759. The total area is 1,546.26 km².Historically, the district was once known as Nishichikuma District until May 1, 1968....
  
   merged to form the new town of Kiso
  Kiso, Nagano (town)
  is a town located in Kiso District, Nagano Prefecture, Japan.The town was founded on November 1, 2005, when the town of Kisofukushima was merged with three villages , all from Kiso District....
  
  .

• On January 1, 2006 - The villages of Yasaka
  Yasaka, Nagano
  was a village located in Kitaazumi District, Nagano, Japan.On January 1, 2006 Yasaka, along with the village of Miasa, also from Kitaazumi District, was merged into the city of Ōmachi....
  
   and Miasa
  Miasa, Nagano
  was a village located in Kitaazumi District, Nagano, Japan.On January 1, 2006 Miasa, along with the village of Yasaka, also from Kitaazumi District, was merged into the city of Ōmachi....
  
   from Kitaazumi District
  Kitaazumi District, Nagano
  is a district located in Nagano Prefecture, Japan.As of 2003, the district has an estimated population of 36,547 and a density of 57.31 persons per km². The total area is 637.66 km².-Towns and villages:*Hakuba*Ikeda*Matsukawa*Otari-Mergers:...
  
   merged into the city of Ōmachi
  Omachi, Nagano
  is a city located in Nagano, Japan.As of 2008, the city has an estimated population of 31,079 and the population density of 55 persons per km². The total area is 564.99 km²....
  
  .

• On January 1, 2006 - The village of Namiai
  Namiai, Nagano
  was a village located in Shimoina District, Nagano, Japan.On January 1, 2006, Namiai was merged into the village of Achi.As of 2003, the village had an estimated population of 766 and a density of 13.38 persons per km². The total area was 57.24 km²....
  
   from Shimoina District
  Shimoina District, Nagano
  is a district located in Nagano Prefecture, Japan.As of May, 2008, the district has an estimated Population of 65,359 and a Density of 51.4 persons/km²...
  
   merged into the village of Achi
  Achi, Nagano
  is a village located in Shimoina District, Nagano, Japan.Achi was the birthplace of the photographer and illustrator Motoichi Kumagai, who worked as a teacher in the village and photographed its life; the village has a permanent gallery of Kumagai's work, Kumagai Motoichi Shashin Dōgakan.On March...
  
  .

• On March 6, 2006 - The old city of Ueda
  Ueda, Nagano (former city)
  The former city of in Nagano, Japan is legally recognized as a separate municipality from the present city of Ueda that replaced the former city.As of 2003, the city had an estimated population of 125,458 and the density of 709.89 persons per km². The total area was 176.73 km².The city was founded...
  
  , the towns of Maruko
  Maruko, Nagano
  was a town located in Chiisagata District, Nagano, Japan.On March 6, 2006 Maruko was merged with the town of Sanada, the village of Takeshi, all from Chiisagata District, and the old city of Ueda to form the new city of Ueda....
  
  , Sanada
  Sanada, Nagano
  was a town located in Chiisagata District, Nagano, Japan.As of 2003, the town had an estimated population of 11,477 and a density of 63.10 persons per km². The total area was 181.90 km²....
  
   and the village of Takeshi
  Takeshi, Nagano
  was a village located in Chiisagata District, Nagano, Japan.On March 6, 2006 Takeshi was merged with the towns of Maruko and Sanada, all from Chiisagata District, and the old city of Ueda to form the new city of Ueda....
  
   (all from Chiisagata District
  Chiisagata District, Nagano
  Chiisagata is a district located in Nagano Prefecture, Japan.As of February 1, 2006, the district has an estimated population of 12,039...
  
  ) merged to form the new city of Ueda.

• On March 31, 2006 - The old city of Ina
  Ina, Nagano
  is a city located in Nagano, Japan.The city was founded on March 31, 2006 when the old city of Ina merged with the town of Takatō and the village of Hase, both from Kamiina District, to form the new city of Ina.-Surrounding municipalities:*Nagano Prefecture...
  
  , the town of Takatō
  Takato, Nagano
  was a town located in Kamiina District, Nagano, Japan.On March 31, 2006 Takatō, along with the village of Hase, also from Kamiina District, was merged into the expanded city of Ina....
  
   and the village of Hase
  Hase, Nagano
  was a village located in Kamiina District, Nagano, Japan.On March 31, 2006 Hase, along with the town of Takatō, also from Kamiina District, was merged into the expanded city of Ina....
  
   from Kamiina District
  Kamiina District, Nagano
  Kamiina is a district located in Nagano, Japan.As of May, 2008, the district has an estimated Population of 86,453 and a Density of 168 persons/km²...
  
   merged to form the new city of Ina
  Ina, Nagano
  is a city located in Nagano, Japan.The city was founded on March 31, 2006 when the old city of Ina merged with the town of Takatō and the village of Hase, both from Kamiina District, to form the new city of Ina.-Surrounding municipalities:*Nagano Prefecture...
  
  .

• On March 31, 2009 - The village of Seinaiji
  Seinaiji, Nagano
  was a village located in Shimoina District, Nagano, Japan.As of 2003, the village had an estimated population of 748 and a density of 16.94 persons per km². The total area was 44.16 km²....
  
   from Shimoina District
  Shimoina District, Nagano
  is a district located in Nagano Prefecture, Japan.As of May, 2008, the district has an estimated Population of 65,359 and a Density of 51.4 persons/km²...
  
   merged into the village of Achi
  Achi, Nagano
  is a village located in Shimoina District, Nagano, Japan.Achi was the birthplace of the photographer and illustrator Motoichi Kumagai, who worked as a teacher in the village and photographed its life; the village has a permanent gallery of Kumagai's work, Kumagai Motoichi Shashin Dōgakan.On March...
  
  .

• On January 1, 2010 - The town of Shinshūshinmachi and the village of Nakajō
  Nakajo, Nagano
  was a village located in Kamiminochi District, Nagano, Japan. On 1 January 2010 the village merged into the city of Nagano.As of 2003, the village had an estimated population of 2,742 and a population density of 82.37 persons per km². The total area was 33.29 km². This village lies about...
  
   from Kamiminochi District
  Kamiminochi District, Nagano
  is a district located in Nagano Prefecture, Japan.As of 2011, the district has an estimated population of 23,774. As a result of mergers the total area of the district is now 282.65 km².- Towns and villages :*Iizuna*Ogawa*Shinano- Mergers :...
  
   merged into the city of Nagano
  Nagano, Nagano
  , the capital city of Nagano Prefecture, is located in the northern part of the prefecture near the confluence of the Chikuma and the Sai rivers, on the main Japanese island of Honshū.As of April 1, 2011 the city has a population of 387,146...
  
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• On March 31, 2010 - The town of Hata
  Hata, Nagano
  is a district of Matsumoto City, following the merger between Hata Town and Matsumoto City on 31 March 2010. Hata is located in Nagano, Japan...
  
   from Higashichikuma District
  Higashichikuma District, Nagano
  is a district located in Nagano Prefecture, Japan.As of October 1, 2011, the district has an estimated population of 23,044. The total area is 268.42 km²...
  
   merged into the city of Matsumoto
  Matsumoto, Nagano
  is a city located in Nagano Prefecture, Japan. Matsumoto is designated as a Special City.-Outline:The new city of Matsumoto is the city comprising the mergers of the old city of Matsumoto and four villages. Matsumoto officially absorbed those villages without creating a new municipal...
  
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