Mergers from April 1, 1999 to Present

• On November 1, 2004 - the town of Shogawa
  Shogawa, Toyama
  Shōgawa was a town located in Higashitonami District, Toyama, Japan.On November 1, 2004, Shōgawa was merged with the city of Tonami....
  
   from Higashitonami District
  Higashitonami District, Toyama
  Higashitonami was a district located in Toyama, Japan.Due to the enforcement of the district government, the district was founded in 1896 when the former Tonami District, occupied the southwestern Etchu Province, split into Nishitonami and Higashitonami Districts.At the time of founding, the...
  
   and the old city of Tonami
  Tonami, Toyama
  is a city located in Toyama, Japan. The city was founded on April 1, 1954.As of April 30, 2011, the city has an estimated population of 49,470, with 15,438 households and a density of 389.65 persons per km²...
  
   merged to form the new city of Tonami
  Tonami, Toyama
  is a city located in Toyama, Japan. The city was founded on April 1, 1954.As of April 30, 2011, the city has an estimated population of 49,470, with 15,438 households and a density of 389.65 persons per km²...
  
  .

• On November 1, 2004 - the municipalities of Fukuno
  Fukuno, Toyama
  Fukuno was a town located in Higashitonami District, Toyama, Japan.On November 1, 2004 Fukuno was merged with the towns of Inami and Jōhana, the villages of Inokuchi, Kamitaira, Taira and Toga, all from Higashitonami District, and the town of Fukumitsu, from Nishitonami District, to form the new...
  
  , Inami
  Inami, Toyama
  Inami was a town located in Higashitonami District, Toyama, Japan.On November 1, 2004 Inami was merged with the towns of Fukuno and Jōhana, the villages of Inokuchi, Kamitaira, Taira and Toga, all from Higashitonami District, and the town of Fukumitsu, from Nishitonami District, to form the new...
  
  , Jōhana
  Johana, Toyama
  Jōhana was a town located in Higashitonami District, Toyama, Japan.On November 1, 2004 Jōhana was merged with the towns of Fukuno and Inami, the villages of Inokuchi, Kamitaira, Taira and Toga, all from Higashitonami District, and the town of Fukumitsu, from Nishitonami District, to form the new...
  
  , Inokuchi
  Inokuchi, Toyama
  Inokuchi was a village located in Higashitonami District, Toyama, Japan.On November 1, 2004 Inokuchi was merged with the towns of Fukuno, Inami and Jōhana, the villages of Kamitaira, Taira and Toga, all from Higashitonami District, and the town of Fukumitsu, from Nishitonami District, to form the...
  
  , Kamitaira
  Kamitaira, Toyama
  Kamitaira was a village located in Higashitonami District, Toyama, Japan.On November 1, 2004 Kamitaira was merged with the towns of Fukuno, Inami and Jōhana, the villages of Inokuchi, Taira and Toga, all from Higashitonami District, and the town of Fukumitsu, from Nishitonami District, to form the...
  
  , Taira
  Taira, Toyama
  was a village located in Higashitonami District, Toyama, Japan.On November 1, 2004 Taira was merged with the towns of Fukuno, Inami and Jōhana, the villages of Inokuchi, Kamitaira and Toga, all from Higashitonami District, and the town of Fukumitsu, from Nishitonami District, to form the new city...
  
   and Toga
  Toga, Toyama
  Toga was a village located in Higashitonami District, Toyama, Japan. Historically, along with neighbouring Taira, Kami-Taira and Shirakawa-go, the four villages formed what was known as the Gokayama region. The region is renowned for a unique type of A-frame housing design. These "gassho-zukuri"...
  
   (all from Higashitonami District
  Higashitonami District, Toyama
  Higashitonami was a district located in Toyama, Japan.Due to the enforcement of the district government, the district was founded in 1896 when the former Tonami District, occupied the southwestern Etchu Province, split into Nishitonami and Higashitonami Districts.At the time of founding, the...
  
  ) and Fukumitsu
  Fukumitsu, Toyama
  Fukumitsu was a town located in Nishitonami District, Toyama, Japan.On November 1, 2004 Fukumitsu was merged with the towns of Fukuno, Inami and Jōhana, and the villages of Inokuchi, Kamitaira, Taira and Toga, all from Higashitonami District, to form the new city of Nanto.As of 2003, the town had...
  
   from Nishitonami District
  Nishitonami District, Toyama
  Nishitonami is a district located in Toyama, Japan.As of November 1, 2004, the district has a population of 13,770. The total area was 58.76 km².Prior to dissolution, the district has only one town left.* Fukuoka...
  
   merged to form the new city of Nanto
  Nanto, Toyama
  is a city located in Toyama Prefecture, Japan.-History:As of 2000, 8 municipalities that merged into the city had an estimated total population of 60,182 with an average population density of 89.98 persons per km². The total area is 668.86 km²...
  
  . Higashitonami District
  Higashitonami District, Toyama
  Higashitonami was a district located in Toyama, Japan.Due to the enforcement of the district government, the district was founded in 1896 when the former Tonami District, occupied the southwestern Etchu Province, split into Nishitonami and Higashitonami Districts.At the time of founding, the...
  
   was dissolved as a result of this merger.

• On April 1, 2005 - the towns of Ōsawano
  Osawano, Toyama
  was a town located in Kaminiikawa District, Toyama, Japan.On April 1, 2005 Ōsawano, along with the town of Ōyama, from Kaminiikawa District, the towns of Fuchū and Yatsuo, and the villages of Hosoiri and Yamada, all from Nei District, was merged into the city of Toyama.As of 2003, the town had an...
  
   and Ōyama
  Oyama, Toyama
  was a town located in Kaminiikawa District, Toyama, Japan.On April 1, 2005 Ōyama, along with the towns of Ōsawano, from Kaminiikawa District, the towns of Fuchū and Yatsuo, and the villages of Hosoiri and Yamada, all from Nei District, was merged into the city of Toyama.As of 2003, the town had an...
  
   from Kaminiikawa District
  Kaminiikawa District, Toyama
  Kaminiikawa was a district located in Toyama, Japan.As of 2003, the district had an estimated population of 34,491 and a density of 53.31 persons per km²...
  
   and the towns and villages of Fuchū
  Fuchu, Toyama
  was a town located in Nei District, Toyama, Japan.On April 1, 2005 Fuchū, along with the towns of Ōsawano and Ōyama, both from Kaminiikawa District, the town of Yatsuo, and the villages of Hosoiri and Yamada, all from Nei District, was merged into the city of Toyama.As of 2003, the town had an...
  
  , Hosoiri
  Hosoiri, Toyama
  was a village located in Nei District, Toyama, Japan.On April 1, 2005 Hosoiri, along with the towns of Ōsawano and Ōyama, both from Kaminiikawa District, the towns of Fuchū and Yatsuo, and the village of Yamada, all from Nei District, was merged into the city of Toyama.As of 2003, the village had...
  
  , Yamada
  Yamada, Toyama
  was a village located in Nei District, Toyama, Japan.On April 1, 2005 Yamada, along with the towns of Ōsawano and Ōyama, both from Kaminiikawa District, the towns of Fuchū and Yatsuo, and the village of Hosoiri, all from Nei District, was merged into the city of Toyama.As of 2003, the village had...
  
   and Yatsuo
  Yatsuo, Toyama
  was a town located in Nei District, Toyama, Japan. It is famous for Owara Kaze no bon festival.On April 1, 2005 Yatsuo, along with the towns of Ōsawano and Ōyama, both from Kaminiikawa District, the town of Fuchū, and the villages of Hosoiri and Yamada, all from Nei District, was merged into the...
  
   (all from Nei District
  Nei District, Toyama
  was a district located in Toyama, Japan.As of 2003, the district has an estimated population of 61,601 and a density of 159.56 persons per km². The total area is 386.06 km².-Towns and villages:* Fuchū* Hosoiri* Yamada* Yatsuo-History:...
  
  ) merged with the old city of Toyama
  Toyama, Toyama
  is the capital city of Toyama Prefecture, Japan, located on the coast of the Sea of Japan in the Chūbu region on central Honshū, about 200 km north of the city of Nagoya and 300 km northwest of Tokyo....
  
   to form the new city of Toyama
  Toyama, Toyama
  is the capital city of Toyama Prefecture, Japan, located on the coast of the Sea of Japan in the Chūbu region on central Honshū, about 200 km north of the city of Nagoya and 300 km northwest of Tokyo....
  
  . Kaminiikawa District
  Kaminiikawa District, Toyama
  Kaminiikawa was a district located in Toyama, Japan.As of 2003, the district had an estimated population of 34,491 and a density of 53.31 persons per km²...
  
   and Nei District
  Nei District, Toyama
  was a district located in Toyama, Japan.As of 2003, the district has an estimated population of 61,601 and a density of 159.56 persons per km². The total area is 386.06 km².-Towns and villages:* Fuchū* Hosoiri* Yamada* Yatsuo-History:...
  
   were both dissolved as a result of this merger.

• On November 1, 2005 - the city of Shinminato
  Shinminato, Toyama
  Shinminato was a city located in Toyama, Japan., the city had an estimated population of 37,094 and the density of 1,146.29 persons per km²...
  
   and the municipalities of Daimon
  Daimon, Toyama
  was a town located in Imizu District, Toyama, Japan.On November 1, 2005 Daimon was merged with the towns of Kosugi and Ōshima, the village of Shimo, all from Imizu District, and the old city of Shinminato, to form the new city of Imizu and no longer exists as an independent municipality.As of 2003,...
  
  , Kosugi
  Kosugi, Toyama
  Kosugi was a town located in Imizu District, Toyama, Japan.On November 1, 2005 Kosugi was merged with the towns of Daimon and Ōshima, the village of Shimo, all from Imizu District, and the old city of Shinminato, to form the new city of Imizu and no longer exists as an independent municipality.As...
  
  , Ōshima
  Oshima, Toyama
  was a town located in Imizu District, Toyama, Japan.On November 1, 2005 Ōshima was merged with the towns of Daimon and Kosugi, the village of Shimo, all from Imizu District, and the old city of Shinminato, to form the new city of Imizu and no longer exists as an independent municipality.As of 2003,...
  
   and Shimo
  Shimo, Toyama
  was a village located in Imizu District, Toyama, Japan.On November 1, 2005 Shimo was merged with the towns of Daimon, Kosugi and Ōshima, all from Imizu District, and the old city of Shinminato, to form the new city of Imizu and no longer exists as an independent municipality.As of 2003, the village...
  
   (all from Imizu District
  Imizu District, Toyama
  Imizu is a district located in Toyama, Japan.As of 2003, the district has an estimated population of 57,362 and a density of 747.39 persons per km²...
  
  ) merged to form the new city of Imizu
  Imizu, Toyama
  is a city located in Toyama, Japan.As of August 1, 2011, the city has an estimated population of 93,215 and a population density of 854 persons per km²...
  
  . Imizu District
  Imizu District, Toyama
  Imizu is a district located in Toyama, Japan.As of 2003, the district has an estimated population of 57,362 and a density of 747.39 persons per km²...
  
   was dissolved as a result of this merger.

• On November 1, 2005 - the town of Fukuoka
  Fukuoka, Toyama
  was a town located in Nishitonami District, Toyama, Japan.On November 1, 2005, Fukuoka was merged into the city of Takaoka.The town festival is called Tsukurimon and features carvings and dioramas made from produce....
  
   from Nishitonami District
  Nishitonami District, Toyama
  Nishitonami is a district located in Toyama, Japan.As of November 1, 2004, the district has a population of 13,770. The total area was 58.76 km².Prior to dissolution, the district has only one town left.* Fukuoka...
  
   merged with the old city of Takaoka
  Takaoka, Toyama
  is a city situated in the northwest of Toyama Prefecture, Japan, and is the central city of its Western District. Takaoka covers the 8th largest surface area in Toyama prefecture and has the second largest population after Toyama City...
  
   to form the new city of Takaoka
  Takaoka, Toyama
  is a city situated in the northwest of Toyama Prefecture, Japan, and is the central city of its Western District. Takaoka covers the 8th largest surface area in Toyama prefecture and has the second largest population after Toyama City...
  
  . Nishitonami District
  Nishitonami District, Toyama
  Nishitonami is a district located in Toyama, Japan.As of November 1, 2004, the district has a population of 13,770. The total area was 58.76 km².Prior to dissolution, the district has only one town left.* Fukuoka...
  
   was dissolved as a result of this merger.

• On March 31, 2006 - the town of Unazuki
  Unazuki, Toyama
  was a town located in Shimoniikawa District, Toyama, Japan.On March 31, 2006 Unazaki was merged into the city of Kurobe.As of 2003, the town had an estimated population of 6,178 and a density of 18.19 persons per km². The total area was 339.58 km²....
  
   from Shimoniikawa District
  Shimoniikawa District, Toyama
  is a district located in Toyama, Japan.As of 2003, the district has an estimated population of 49,118 and a density of 77.09 persons per km². The total area is 637.19 km².-Mergers:...
  
   merged with the old city of Kurobe
  Kurobe, Toyama
  is a city located in Toyama, Japan.As of 2008, the city has an estimated population of 42,612 and the density of 99.9 persons per km². The total area is 426.34 km². The city was founded on April 1, 1954...
  
   to form the new city of Kurobe
  Kurobe, Toyama
  is a city located in Toyama, Japan.As of 2008, the city has an estimated population of 42,612 and the density of 99.9 persons per km². The total area is 426.34 km². The city was founded on April 1, 1954...
  
  .