Mergers from April 1, 1999 to Present

• On October 1, 2004 - the city of Takahashi
  Takahashi, Okayama
  is a city located in Okayama, Japan.As of April 30, 2011, the city has an estimated population of 34,119, with a household number of 13,990 and the density of 62.37 persons per km². The total area is 547.01 km².The city was founded on May 1, 1954....
  
   and the towns of Ukan
  Ukan, Okayama
  was a town located in Jōbō District, Okayama, Japan.On October 1, 2004 Ukan, along with the towns of Bitchū, Kawakami and Nariwa, all from Kawakami District, was merged into the expanded city of Takahashi and no longer exists as an independent municipality....
  
  , Nariwa
  Nariwa, Okayama
  was a town located in Kawakami District, Okayama, Japan.On October 1, 2004 Nariwa, along with the town of Ukan, from Jōbō District, and the towns of Bitchū and Kawakami, all from Kawakami District, was merged into the expanded city of Takahashi and no longer exists as an independent municipality.As...
  
  , Kawakami
  Kawakami, Okayama (Kawakami)
  was a town located in the former Kawakami District, Okayama, Japan.On October 1, 2004 Kawakami, along with the town of Ukan, from Jōbō District, and the towns of Bitchū and Nariwa, all from Kawakami District, was merged into the expanded city of Takahashi and no longer exists as an independent...
  
  , and Bitchū
  Bitchu, Okayama
  was a town located in Kawakami District, Okayama, Japan.On October 1, 2004 Bitchū, along with the town of Ukan, from Jōbō District, and the towns of Kawakami and Nariwa, all from Kawakami District, was merged into the expanded city of Takahashi and no longer exists as an independent municipality.As...
  
   merged to form the new city of Takahashi
  Takahashi, Okayama
  is a city located in Okayama, Japan.As of April 30, 2011, the city has an estimated population of 34,119, with a household number of 13,990 and the density of 62.37 persons per km². The total area is 547.01 km².The city was founded on May 1, 1954....
  
  . As a result of this merger, Kawakami District
  Kawakami District, Okayama
  Kawakami was a district located in Okayama, Japan.As of 2003, the district had an estimated population of 12,339 and a density of 45.47 persons per km². The total area was 271.34 km²....
  
   was dissolved.

• On October 1, 2004 - the towns of Kamogawa
  Kamogawa, Okayama
  was a town located in Mitsu District, Okayama, Japan.On October 1, 2004 Kamogawa was merged with the town of Kayō, from Jōbō District, to form the new town of Kibichūō....
  
   and Kayō
  Kayo, Okayama
  was a town located in Jōbō District, Okayama, Japan.On October 1, 2004 Kayō was merged with the town of Kamogawa, from Mitsu District, to form the new town of Kibichūō....
  
   merged to form the town of Kibichūō
  Kibichuo, Okayama
  is a town located in Kaga District, Okayama, Japan.As of August 31, 2004, the town has an estimated population of 14,546 and a density of 54.13 persons per km². The total area is 268.73 km²....
  
  . The new town belongs to Kaga District
  Kaga District, Okayama
  is a district located in Okayama, Japan.As of August 31, 2004, the district has an estimated population of 14,546 and a density of 54.13 persons per km². The total area is 268.73 km².- Towns and villages :...
  
  , founded upon this merger.

• On November 1, 2004 - the towns of Ushimado
  Ushimado, Okayama
  was a town located in Oku District, Okayama, Japan.On November 1, 2004 Ushimado was merged with the towns of Oku and Osafune, all from Oku District, to form the new city of Setouchi....
  
  , Oku
  Oku, Okayama
  was a town located in Oku District, Okayama, Japan.On November 1, 2004 Oku was merged with the towns of Osafune and Ushimado, all from Oku District, to form the new city of Setouchi....
  
  , and Osafune
  Osafune, Okayama
  was a town located in Oku District, Okayama, Japan.On November 1, 2004 Osafune was merged with the towns of Oku and Ushimado, all from Oku District, to form the new city of Setouchi....
  
   from Oku District
  Oku District, Okayama
  Oku was a district located in Okayama, Japan.As of 2003, the district had an estimated population of 39,365 and a density of 313.64 persons per km². The total area was 125.51 km²....
  
   merged to form the city of Setouchi
  Setouchi, Okayama
  is a city located in the southern part of Okayama Prefecture, Japan. As of 2004, the city has a population of 39,377. The total area is 125.51 km²....
  
  . As a result of this merger, Oku District
  Oku District, Okayama
  Oku was a district located in Okayama, Japan.As of 2003, the district had an estimated population of 39,365 and a density of 313.64 persons per km². The total area was 125.51 km²....
  
   was dissolved.

• On February 28, 2005 - the towns of Kamo
  Kamo, Okayama
  was a town located in Tomata District, Okayama, Japan.On February 28, 2005 Kamo, along with the village of Aba, from Tomata District, the town of Shōboku, from Katsuta District, and the town of Kume, from Kume District, was merged into the expanded city of Tsuyama and no longer exists as an...
  
  , Shōboku
  Shoboku, Okayama
  was a town located in Katsuta District, Okayama, Japan.On February 28, 2005 Shōboku, along with the town of Kamo, the village of Aba, both from Tomata District, and the town of Kume, from Kume District, was merged into the expanded city of Tsuyama and no longer exists as an independent...
  
  , and Kume
  Kume, Okayama
  was a town located in Kume District, Okayama, Japan.On February 28, 2005 Kume, along with the town of Kamo, the village of Aba, both from Tomata District, and the town of Shōboku, from Katsuta District, was merged into the expanded city of Tsuyama and no longer exists as an independent...
  
   and the village of Aba
  Aba, Okayama
  was a village located in the north of Tomata District, Okayama, Japan, sharing a border with Tottori Prefecture.On February 28, 2005 Aba, along with the town of Kamo, from Tomata District, the town of Shōboku, from Katsuta District, and the town of Kume, from Kume District, was merged into the...
  
   from Tomata District
  Tomata District, Okayama
  Tomata is a district located in Okayama, Japan.As of 2003, the district has an estimated population of 20,631 and a density of 33.22 persons per km²...
  
   merged into the city of Tsuyama
  Tsuyama, Okayama
  is a city located in Okayama, Japan.As of 2003, the city had an estimated population of 89,974 and the density of 484.43 persons per km². The total area was 185.73 km²...
  
  .

• On March 1, 2005 - the towns of Yoshii
  Yoshii, Okayama (Shitsuki)
  was a town located in Shitsuki District, Okayama, Japan.On March 1, 2005 Yoshii, along with the town of Bisei, from Oda District, was merged into the city of Ibara....
  
   from Shitsuki District
  Shitsuki District, Okayama
  Shitsuki was a district located in Okayama, Japan.As of 2003, the district had an estimated population of 5,736 and a density of 71.07 persons per km². The total area was 80.71 km².This district was dissolved on 1 March 2005....
  
   and Bisei
  Bisei, Okayama
  was a town located in Oda District, Okayama, Japan.On March 1, 2005 Bisei, along with the town of Yoshii, from Shitsuki District, was merged into the city of Ibara....
  
   from Oda District
  Oda District, Okayama
  Oda is a district located in Okayama, Japan.As of 2003, the district has an estimated population of 21,285 and a density of 130.33 persons per km². The total area is 163.32 km².-Merger:...
  
   merged into the city of Ibara
  Ibara, Okayama
  is a city located in Okayama, Japan.As of 2008, the city has an estimated population of 44,271 and the density of 182 people per km². The total area is 243.36 km².The city was founded on March 30, 1953...
  
  . As a result of this merger, Shitsuki District
  Shitsuki District, Okayama
  Shitsuki was a district located in Okayama, Japan.As of 2003, the district had an estimated population of 5,736 and a density of 71.07 persons per km². The total area was 80.71 km².This district was dissolved on 1 March 2005....
  
   was dissolved.

• On March 1, 2005 - the towns of Okutsu
  Okutsu, Okayama
  was a town located in Tomata District, Okayama, Japan.On March 1, 2005 Okutsu, along with the villages of Kamisaibara and Tomi, all from Tomata District, was merged into the expanded town of Kagamino....
  
   and Kagamino
  Kagamino, Okayama
  is a town located in Tomata District, Okayama, Japan.On March 1, 2005 Kagamino absorbed the town of Okutsu, and the villages of Kamisaibara and Tomi, all from Tomata District, to form the new town of Kagamino, with a combined total area of 419.69 km²...
  
   and the villages of Kamisaibara
  Kamisaibara, Okayama
  was a village located in Tomata District, Okayama, Japan.On March 1, 2005 Kamisaibara, along with the town of Okutsu, and the village of Tomi, all from Tomata District, was merged into the expanded town of Kagamino....
  
   and Tomi
  Tomi, Okayama
  was a village located in Tomata District, Okayama, Japan.On March 1, 2005 Tomi, along with the town of Okutsu, and the village of Kamisaibara, all from Tomata District, was merged into the expanded town of Kagamino....
  
   from Tomata District
  Tomata District, Okayama
  Tomata is a district located in Okayama, Japan.As of 2003, the district has an estimated population of 20,631 and a density of 33.22 persons per km²...
  
   merged to form the new town of Kagamino
  Kagamino, Okayama
  is a town located in Tomata District, Okayama, Japan.On March 1, 2005 Kagamino absorbed the town of Okutsu, and the villages of Kamisaibara and Tomi, all from Tomata District, to form the new town of Kagamino, with a combined total area of 419.69 km²...
  
  .

• On March 7, 2005 - the towns of San'yō, Akasaka
  Akasaka, Okayama
  was a town located in Akaiwa District, Okayama, Japan.On March 7, 2005 Akasaka was merged with the towns of Kumayama, San'yō and Yoshii, all from Akaiwa District, to form the new city of Akaiwa.Akasaka is home to many restaurants and small shops...
  
  , Yoshii
  Yoshii, Okayama (Akaiwa)
  was a town located in Akaiwa District, Okayama, Japan.On March 7, 2005 Yoshii was merged with the towns of Akasaka, Kumayama and San'yō, all from Akaiwa District, to form the new city of Akaiwa....
  
   and Kumayama
  Kumayama, Okayama
  was a town located in Akaiwa District, Okayama, Japan.On March 7, 2005 Kumayama was merged with the towns of Akasaka, San'yō and Yoshii, all from Akaiwa District, to form the new city of Akaiwa....
  
   (all from Akaiwa District
  Akaiwa District, Okayama
  Akaiwa was a district located in Okayama, Japan. As of 2004, the district has an estimated population of 14,945.The total area is 41.78 km²...
  
  ) merged to form the new city of Akaiwa
  Akaiwa, Okayama
  is a city located in Okayama Prefecture, Japan.As of November 1, 2006, the city has an estimated population of 45,542 and the density of 217.46 persons per km². The total area is 209.43 km²....
  
  .

• On March 22, 2005 - the towns of Mitsu
  Mitsu, Okayama
  was a town located in Mitsu District, Okayama, Japan.On March 22, 2005 Mitsu, along with the town of Nadasaki, from Kojima District, was merged into the expanded city of Okayama....
  
   and Nadasaki
  Nadasaki, Okayama
  was a town located in Kojima District, Okayama, Japan.On March 22, 2005, Nadasaki, along with the town of Mitsu, from Mitsu District, was merged into the expanded city of Okayama....
  
   merged into the city of Okayama
  Okayama, Okayama
  is the capital city of Okayama Prefecture in the Chūgoku region of Japan.The city was founded on June 1, 1889. As of August 2010, the city has an estimated population of 705,224 and a population density of 893 persons per km². The total area is 789.88 km²....
  
  . As a result of this merger, Kojima District
  Kojima District, Okayama
  was a district located in Okayama, Japan.As of 2003, the district had an estimated population of 15,872 and a density of 514.32 persons per km². The total area was 30.86 km²....
  
   was dissolved.

• On March 22, 2005 - the city of Sōja
  Soja, Okayama
  is a city located in Okayama Prefecture, Japan.As of April 30, 2011, the city has an estimated population of 67,357, with a household number of 24,623, and the density of 317.72 persons per km². The total area is 212.00 km².The city was founded on March 31, 1954...
  
   merged with the villages of Yamate
  Yamate, Okayama
  was a village located in Tsukubo District, Okayama, Japan.On March 22, 2005 Yamate, along with the village of Kiyone, also from Tsukubo District, was merged into the expanded city of Sōja....
  
  , and Kiyone
  Kiyone, Okayama
  was a village located in Tsukubo District, Okayama, Japan.On March 22, 2005 Kiyone, along with the village of Yamate, also from Tsukubo District, was merged into the expanded city of Sōja....
  
   from Tsukubo District
  Tsukubo District, Okayama
  Tsukubo is a district located in Okayama, Japan.As of 2003, the district has an estimated population of 21,601 and a density of 789.80 persons per km². The total area is 27.35 km².-Merger:...
  
   to form the new city of Sōja
  Soja, Okayama
  is a city located in Okayama Prefecture, Japan.As of April 30, 2011, the city has an estimated population of 67,357, with a household number of 24,623, and the density of 317.72 persons per km². The total area is 212.00 km².The city was founded on March 31, 1954...
  
  .

• On March 22, 2005 - the city of Bizen
  Bizen, Okayama
  is a city located in Okayama, Japan. The city is particularly famous for its Bizen-yaki pottery. It is also home to literary critic Hakuchō Masamune's birthplace, which is now a museum....
  
   and the towns of Hinase
  Hinase, Okayama
  was a town located in Wake District, Okayama, Japan.On March 22, 2005 Hinase, along with the towns of Yoshinaga, also from Wake District, was merged into the expanded city of Bizen....
  
  , and Yoshinaga
  Yoshinaga, Okayama
  was a town located in Wake District, Okayama, Japan.On March 22, 2005 Yoshinaga, along with the town of Hinase, also from Wake District, was merged into the expanded city of Bizen....
  
   merged to form the new city of Bizen
  Bizen, Okayama
  is a city located in Okayama, Japan. The city is particularly famous for its Bizen-yaki pottery. It is also home to literary critic Hakuchō Masamune's birthplace, which is now a museum....
  
  .

• On March 22, 2005 - the towns of Chūō
  Chuo, Okayama
  was a town located in Kume District, Okayama, Japan.On March 22, 2005 Chūō was merged with the towns of Asahi and Yanahara, all from Kume District, to form the new town of Misaki....
  
  , Asahi
  Asahi, Okayama
  was a town located in Kume District, Okayama, Japan.On March 22, 2005 Asahi was merged with the towns of Chūō and Yanahara, all from Kume District, to form the new town of Misaki....
  
  , and Yanahara
  Yanahara, Okayama
  was a town located in Kume District, Okayama, Japan.On March 22, 2005 Yanahara was merged with the towns of Asahi and Chūō, all from Kume District, to form the new town of Misaki....
  
   merged to form the new town of Misaki
  Misaki, Okayama
  is a town located in Kume District, Okayama, Japan.As of March 1, 2004, the town has an estimated population of 17,776 and a density of 76.57 persons per km². The total area is 232.15 km²....
  
  .

• On March 31, 2005 - the city of Niimi
  Niimi, Okayama
  is a city located in Okayama, Japan.As of March 31, 2011, the city has an estimated population of 34,035 , 13,077 households and the density of 42.90 persons per km²...
  
   and the towns of Ōsa
  Osa, Okayama
  was a town located in Atetsu District, Okayama, Japan.On March 31, 2005 Ōsa, along with the towns of Shingō, Tessei and Tetta, all from Atetsu District, was merged into the expanded city of Niimi....
  
  , Shingō
  Shingo, Okayama
  was a town located in Atetsu District, Okayama, Japan.On March 31, 2005 Shingō, along with the towns of Ōsa, Tessei and Tetta, all from Atetsu District, was merged into the expanded city of Niimi....
  
  , Tessei
  Tessei, Okayama
  was a town located in Atetsu District, Okayama, Japan.On March 31, 2005 Tessei, along with the towns of Ōsa, Shingō and Tetta, all from Atetsu District, was merged into the expanded city of Niimi....
  
  , and Tetta
  Tetta, Okayama
  was a town located in Atetsu District, Okayama, Japan.On March 31, 2005 Tetta, along with the towns of Ōsa, Shingō and Tessei, all from Atetsu District, was merged into the expanded city of Niimi....
  
   merged to form the new city of Niimi
  Niimi, Okayama
  is a city located in Okayama, Japan.As of March 31, 2011, the city has an estimated population of 34,035 , 13,077 households and the density of 42.90 persons per km²...
  
  . As a result of this merger, Atetsu District
  Atetsu District, Okayama
  Atetsu was a district located in Okayama, Japan.As of 2003, the district had an estimated population of 13,546 and a density of 30.70 persons per km². The total area was 441.28 km².This district was dissolved on 31 March 2005....
  
   was dissolved.

• On March 31, 2005 - the town of Hokubō
  Hokubo, Okayama
  was a town located in Jōbō District, Okayama, Japan.On March 31, 2005 Hokubō was merged with the towns of Katsuyama, Ochiai, Yubara and Kuse, and the villages of Mikamo, Kawakami, Yatsuka and Chūka, all from Maniwa District, to form the new city of Maniwa....
  
   from Jōbō District
  Jobo District, Okayama
  was a district located in Okayama, Japan.As of 2003, the district had an estimated population of 16,967 and a density of 69.13 persons per km². The total area was 245.45 km².This district was dissolved on 31 March 2005.-Towns and villages:...
  
   and the towns of Katsuyama
  Katsuyama, Okayama
  was a town located in Maniwa District, Okayama, Japan.On March 31, 2005 Katsuyama was merged with the town of Hokubō, from Jōbō District, the towns of Ochiai, Yubara and Kuse, and the villages of Mikamo, Kawakami, Yatsuka and Chūka, all from Maniwa District, to form the new Maniwa City.In 2003 the...
  
  , Ochiai
  Ochiai, Okayama
  was a component of the city of Maniwa, Okayama, Japan and was formerly a town in the Maniwa District.On March 31, 2005 Ochiai was merged with the town of Hokubō, from Jōbō District, the towns of Katsuyama, Yubara and Kuse, and the villages of Mikamo, Kawakami, Yatsuka and Chūka, all from Maniwa...
  
  , Yubara
  Yubara, Okayama
  was a town located in Maniwa District, Okayama, Japan.On March 31, 2005 Yubara was merged with the town of Hokubō, from Jōbō District, the towns of Katsuyama, Ochiai and Kuse, and the villages of Mikamo, Kawakami, Yatsuka and Chūka, all from Maniwa District, to form the new city of Maniwa.In 2003...
  
  , and Kuse
  Kuse, Okayama
  was a town located in Maniwa District, Okayama, Japan.On March 31, 2005 Kuse was merged with the town of Hokubō, from Jōbō District, the towns of Katsuyama, Ochiai and Yubara, and the villages of Mikamo, Kawakami, Yatsuka and Chūka, all from Maniwa District, to form the new city of Maniwa.In 2003,...
  
   and the villages of Mikamo
  Mikamo, Okayama
  was a village located in Maniwa District, Okayama, Japan.On March 31, 2005 Mikamo was merged with the town of Hokubō, from Jōbō District, and the towns of Katsuyama, Ochiai, Yubara and Kuse, and the villages of Kawakami, Yatsuka and Chūka, all from Maniwa District, to form the new city of Maniwa.In...
  
  , Kawakami
  Kawakami, Okayama (Maniwa)
  was a village located in Maniwa District, Okayama, Japan.On March 31, 2005 Kawakami was merged with the town of Hokubō, from Jōbō District, and the towns of Katsuyama, Ochiai, Yubara and Kuse, and the villages of Mikamo, Yatsuka and Chūka, all from Maniwa District, to form the new city of Maniwa.In...
  
  , Yatsuka
  Yatsuka, Okayama
  was a village located in Maniwa District, Okayama, Japan.On March 31, 2005 Yatsuka was merged with the town of Hokubō, from Jōbō District, and the towns of Katsuyama, Ochiai, Yubara and Kuse, and the villages of Mikamo, Kawakami and Chūka, all from Maniwa District, to form the new city of Maniwa.In...
  
  , and Chūka
  Chuka, Okayama
  was a village located in Maniwa District, Okayama, Japan.On March 31, 2005 Chūka was merged with the town of Hokubō, from Jōbō District, and the towns of Katsuyama, Ochiai, Yubara and Kuse, and the villages of Mikamo, Kawakami and Yatsuka, all from Maniwa District, to form the new city of Maniwa.In...
  
   (all from Maniwa District
  Maniwa District, Okayama
  Maniwa is a district located in Okayama, Japan.In 2003 the district had an estimated population of 48,246 and a density of 58.53 persons per km²...
  
  ) merged to form the new city of Maniwa
  Maniwa, Okayama
  is a city in Okayama Prefecture, Japan.On 31 March 2005, the town of Hokubō ; the towns of Katsuyama, Ochiai, Yubara, and Kuse and the villages of Mikamo, Kawakami, Yatsuka, and Chūka merged to form the new city of Maniwa.On September 1, 2011, Maniwa had an area of 828.43 km², the largest area of...
  
  . As a result of this merger, Jōbō District
  Jobo District, Okayama
  was a district located in Okayama, Japan.As of 2003, the district had an estimated population of 16,967 and a density of 69.13 persons per km². The total area was 245.45 km².This district was dissolved on 31 March 2005.-Towns and villages:...
  
   was dissolved.

• On March 31, 2005 - the town of Katsuta
  Katsuta, Okayama
  was a town located in Katsuta District, Okayama, Japan.On March 31, 2005 Katsuta was merged with the towns of Mimasaka, Aida, Ōhara and Sakutō, and the village of Higashiawakura, all from Aida District, to form the new city of Mimasaka....
  
   from Katsuta District
  Katsuta District, Okayama
  Katsuta is a district located in Okayama, Japan.As of May 1, 2004, the population was 17,888. The area is 123.63 km².-History:Prior to February 28, Katsuta District consisted of:*Katsuta*Nagi*Shōboku*Shōō...
  
   and the towns of Ōhara
  Ohara, Okayama
  was a town located in Aida District, Okayama, Japan.On March 31, 2005 Ōhara was merged with the towns of Mimasaka, Aida and Sakutō, the village of Higashiawakura, all from Aida District, and the town of Katsuta, from Katsuta District, to form the new city of Mimasaka.As of 2003, the town had an...
  
  , Mimasaka
  Mimasaka, Okayama
  is a city located in Okayama, Japan.It is the result of a merger involving the former town of the same name. The merger took place on March 31, 2005 when the town of Katsuta from Katsuta District, the towns of Aida, Ōhara and Sakutō, and the village Higashiawakura, all from Aida District, were...
  
  , Sakutō
  Sakuto, Okayama
  was a town located in Aida District, Okayama, Japan.On March 31, 2005 Sakutō was merged with the towns of Mimasaka, Aida and Ōhara, the village of Higashiawakura, all from Aida District, and the town of Katsuta, from Katsuta District, to form the new city of Mimasaka.As of 2003, the town had an...
  
  , and Aida
  Aida, Okayama
  was a town located in Aida District, Okayama, Japan.On March 31, 2005 Aida was merged with the towns of Mimasaka, Ōhara and Sakutō, the village of Higashiawakura, all from Aida District, and the town of Katsuta, from Katsuta District, to form the new city of Mimasaka.As of 2003, the town had an...
  
   and the village of Higashiawakura
  Higashiawakura, Okayama
  was a village located in Aida District, Okayama, Japan.On March 31, 2005 Higashiawakura was merged with the towns of Mimasaka, Aida, Ōhara and Sakutō, all from Aida District, and the town of Katsuta, from Katsuta District, to form the new city of Mimasaka....
  
   (all from Aida District
  Aida District, Okayama
  Aida is a district located in Okayama, Japan.As of 2003, the district has an estimated population of 31,845 and a density of 79.65 persons per km²...
  
  ) merged to form the new city of Mimasaka
  Mimasaka, Okayama
  is a city located in Okayama, Japan.It is the result of a merger involving the former town of the same name. The merger took place on March 31, 2005 when the town of Katsuta from Katsuta District, the towns of Aida, Ōhara and Sakutō, and the village Higashiawakura, all from Aida District, were...
  
  .

• On August 1, 2005 - the town of Funao
  Funao, Okayama
  was a town located in Asakuchi District, Okayama, Japan.As of 2003, Funao had an estimated population of 7,393 and a density of 682.01 persons per square kilometre . The total area of the town was ....
  
   from Asakuchi District
  Asakuchi District, Okayama
  is a district located in Okayama, Japan.As of 2003, the district has an estimated population of 55,658 and a density of 621.67 persons per km². The total area is 89.53 km².-Merger:*On August 1, 2005 the town of Funao became part of the city of Kurashiki....
  
   and the town of Mabi
  Mabi, Okayama
  was a town located in Kibi District, Okayama, Japan.On August 1, 2005 Mabi, along with the town of Funao, from Asakuchi District, was merged into the city of Kurashiki....
  
   from Kibi District
  Kibi District, Okayama
  Kibi is a district located in Okayama, Japan.As of 2003, the district has an estimated population of 22,927 and a density of 520.12 persons per km². The total area is 44.08 km²....
  
   merged into the city of Kurashiki
  Kurashiki, Okayama
  is a historic city located to the west of Okayama Prefecture, Japan, sitting on the Takahashi River, on the coast of the Inland Sea.As of April 2010, the city has a population of 473,392. The total area is .-History:...
  
  . Kibi District
  Kibi District, Okayama
  Kibi is a district located in Okayama, Japan.As of 2003, the district has an estimated population of 22,927 and a density of 520.12 persons per km². The total area is 44.08 km²....
  
   was dissolved as a result of this merger.

• On March 1, 2006 - the towns of Wake
  Wake, Okayama
  is a town located in Wake District, Okayama, Japan.As of March 2011, the town has an estimated population of 15,560. The total area is 144.23 km²....
  
   and Saeki
  Saeki, Okayama
  was a town located in Wake District, Okayama, Japan.On March 1, 2006, Saeki was merged into the expanded town of Wake.As of 2003, the town had an estimated population of 4,024 and a density of 66.69 persons per km². The total area was 60.34 km²....
  
   from Wake District
  Wake District, Okayama
  Wake is a district located in Okayama, Japan.As of 2003, the district has an estimated population of 30,110 and a density of 112.02 persons per km². The total area is 268.79 km².-History:...
  
   merged to form the new town of Wake
  Wake, Okayama
  is a town located in Wake District, Okayama, Japan.As of March 2011, the town has an estimated population of 15,560. The total area is 144.23 km²....
  
  .

• On March 21, 2006 - the towns of Konkō
  Konko, Okayama
  was a town located in Asakuchi District, Okayama, Japan.On March 21, 2006 Konkō was merged with the towns of Kamogata and Yorishima, all from Asakuchi District, to form the new city of Asakuchi....
  
  , Kamogata
  Kamogata, Okayama
  was a town located in Asakuchi District, Okayama, Japan.On March 21, 2006 Kamogata was merged with the towns of Konkō and Yorishima, all from Asakuchi District, to form the new city of Asakuchi....
  
   and Yorishima
  Yorishima, Okayama
  was a town located in Asakuchi District, Okayama, Japan.On March 21, 2006 Yorishima was merged with the towns of Kamogata and Konkō, all from Asakuchi District, to form the new city of Asakuchi....
  
   from Asakuchi District
  Asakuchi District, Okayama
  is a district located in Okayama, Japan.As of 2003, the district has an estimated population of 55,658 and a density of 621.67 persons per km². The total area is 89.53 km².-Merger:*On August 1, 2005 the town of Funao became part of the city of Kurashiki....
  
   merged to form the new city of Asakuchi
  Asakuchi, Okayama
  is a city located in Okayama Prefecture, Japan.Asakuchi was formed on March 21, 2006 following the merger of the towns of Kamogata, Konkō and Yorishima, all from Asakuchi District....
  
  .

• On January 22, 2007 - the municipalities of Seto
  Seto, Okayama
  was a town located in Akaiwa District, Okayama, Japan.On January 22, 2007 Seto, along with town of Takebe, from Mitsu District, was merged into the expanded city of Okayama....
  
   of Akaiwa District
  Akaiwa District, Okayama
  Akaiwa was a district located in Okayama, Japan. As of 2004, the district has an estimated population of 14,945.The total area is 41.78 km²...
  
   and Takebe
  Takebe, Okayama
  was a town located in Mitsu District, Okayama, Japan.On January 22, 2007 Takebe, along with town of Seto, from Akaiwa District, was merged into the expanded city of Okayama....
  
   of Mitsu District
  Mitsu District, Okayama
  was a district located in Okayama, Japan. As of 2003, the district has an estimated population of 22,923. The total area is 345.10 km².On April 1, 1900, the district was founded after the mergers of Mino and Tsudaka Districts....
  
   merged into the city of Okayama
  Okayama, Okayama
  is the capital city of Okayama Prefecture in the Chūgoku region of Japan.The city was founded on June 1, 1889. As of August 2010, the city has an estimated population of 705,224 and a population density of 893 persons per km². The total area is 789.88 km²....
  
  . Akaiwa District
  Akaiwa District, Okayama
  Akaiwa was a district located in Okayama, Japan. As of 2004, the district has an estimated population of 14,945.The total area is 41.78 km²...
  
   and Mitsu District
  Mitsu District, Okayama
  was a district located in Okayama, Japan. As of 2003, the district has an estimated population of 22,923. The total area is 345.10 km².On April 1, 1900, the district was founded after the mergers of Mino and Tsudaka Districts....
  
  were dissolved as a result of this merger.