List of mergers in Okayama Prefecture

Last updated May 14, 2024

Here is a list of mergers in Okayama Prefecture, Japan since the Heisei era.

Mergers from April 1, 1999 to Present

On October 1, 2004 - the old city of Takahashi absorbed the town of Ukan (from Jōbō District), and the towns of Bitchū, Kawakami and Nariwa (all from Kawakami District) to create the new and expanded city of Takahashi . Kawakami District was dissolved as a result of this merger.
On October 1, 2004 - the town of Kamogawa (from Mitsu District), and the town of Kayō (from Jōbō District) were merged to create the town of Kibichūō . The new town belongs to the newly created Kaga District, founded upon this merger.
On November 1, 2004 - the towns of Oku, Osafune and Ushimado (all from Oku District) were merged to create the city of Setouchi . Oku District was dissolved as a result of this merger.
On February 28, 2005 - the town of Kamo, the village of Aba (both from Tomata District), the town of Kume (from Kume District), and the town of Shōboku (from Katsuta District) were merged into the expanded city of Tsuyama .
On March 1, 2005 - the town of Yoshii (from Shitsuki District) and the town of Bisei (from Oda District) were merged into the expanded city of Ibara . Shitsuki District was dissolved as a result of this merger.
On March 1, 2005 - the town of Okutsu, and the villages of Kamisaibara and Tomi (all from Tomata District) were merged into the expanded town of Kagamino .
On March 7, 2005 - the towns of Akasaka, Kumayama, San'yō and Yoshii (all from Akaiwa District) were merged to create the city of Akaiwa .
On March 22, 2005 - the town of Mitsu (from Mitsu District), and the town of Nadasaki (from Kojima District) were merged into the expanded city of Okayama . Kojima District was dissolved as a result of this merger.
On March 22, 2005 - the old city of Sōja absorbed the villages of Kiyone and Yamate (both from Tsukubo District) to create the new and expanded city of Sōja .
On March 22, 2005 - the old city of Bizen absorbed the towns of Hinase and Yoshinaga (both from Wake District) to create the new and expanded city of Bizen .
On March 22, 2005 - the towns of Asahi, Chūō and Yanahara (all from Kume District) were merged to create the town of Misaki .
On March 31, 2005 - the old city of Niimi absorbed the towns of Ōsa, Shingō, Tessei and Tetta (all from Atetsu District) to create the new and expanded city of Niimi . Atetsu District was dissolved as a result of this merger.
On March 31, 2005 - the town of Hokubō (from Jōbō District), and towns of Katsuyama, Kuse, Ochiai and Yubara, and the villages of Chūka, Mikamo, Kawakami and Yatsuka (all from Maniwa District) were merged to create the city of Maniwa . Jōbō District was dissolved as a result of this merger.
On March 31, 2005 - the former town of Mimasaka absorbed the towns of Aida, Ōhara and Sakutō, the village of Higashiawakura (all from Aida District), and the town of Katsuta (from Katsuta District) to create the city of Mimasaka .
On August 1, 2005 - the town of Funao (from Asakuchi District), and the town of Mabi (from Kibi District) were merged into the expanded city of Kurashiki . Kibi District was dissolved as a result of this merger.
On March 1, 2006 - the town of Saeki (from Wake District) were merged into the expanded town of Wake .
On March 21, 2006 - the towns of Kamogata, Konkō and Yorishima (all from Asakuchi District) were merged to create the city of Asakuchi .
On January 22, 2007 - the town of Seto (from Akaiwa District), and the town of Takebe (from Mitsu District) were merged into the expanded city of Okayama . Akaiwa District and Mitsu District were dissolved as a result of this merger.

Planned/Future Mergers

Related Research Articles

Takahashi is a city located in Okayama Prefecture, Japan. As of 28 February 2023, the city had an estimated population of 27,538 in 13,678 households. and a population density of 50 persons per km². The total area of the city is 546.99 square kilometres (211.19 sq mi). Bitchū Matsuyama Castle overlooks the town. Another significant location is Raikyū-ji, a Buddhist temple with a historic garden.

Mimasaka Province was a province of Japan in the area that is northern Okayama Prefecture in the Chūgoku region of western Japan. Mimasaka bordered Bitchū, Bizen, Harima, Hōki, and Inaba Provinces. Its abbreviated form name was Sakushū (作州). In terms of the Gokishichidō system, Mimasaka was one of the provinces of the San'in circuit. Under the Engishiki classification system, Mimasaka was ranked as one of the 35 "superior countries" (上国) in terms of importance, and one of the "near countries" (近国) in terms of distance from the capital. The provincial capital was located in what is now the city of Tsuyama.

Bizen Province was a province of Japan in the area that is eastern Okayama Prefecture in the Chūgoku region of western Japan. Bizen bordered Bitchū, Mimasaka, and Harima Provinces. Its abbreviated form name was Bishū (備州). In terms of the Gokishichidō system, Bizen was one of the provinces of the San'yō circuit. Under the Engishiki classification system, Bizen was ranked as one of the 35 "superior countries" (上国) in terms of importance, and one of the "near countries" (近国) in terms of distance from the capital. The provincial capital was located in what is now the city of Okayama.

Bitchū Province was a province of Japan on the Inland Sea side of western Honshū, in what is today western Okayama Prefecture. It was sometimes called Bishū (備州), with Bizen and Bingo Provinces; those three provinces were settled in the late 7th Century, dividing former Kibi Province. Bitchu bordered Hōki, Mimasaka, Bizen, and Bingo Provinces.

Mitsu District was a district located in Okayama Prefecture, Japan.

Akaiwa was a district located in Okayama Prefecture, Japan. The district seat was village of Monori.

Hokubō was a town located in Jōbō District, Okayama, Japan.

Jōbō was a district located in Okayama Prefecture, Japan.

Chūka was a village located in Maniwa District, Okayama Prefecture, Japan.

Yatsuka was a town located in Maniwa District, Okayama Prefecture, Japan.

Kawakami was a town located in Maniwa District, Okayama Prefecture, Japan.

Katsuyama was a town located in Maniwa District, Okayama Prefecture, Japan.

Ochiai was a town located in Maniwa District, Okayama Prefecture, Japan.

Yubara was a town located in Maniwa District, Okayama Prefecture, Japan.

Kuse was a town located in Maniwa District, Okayama Prefecture, Japan.

Mikamo was a town located in Maniwa District, Okayama Prefecture, Japan.

Aba was a village located in the north of Tomata District, Okayama Prefecture, Japan, sharing a border with Tottori Prefecture.

Shōboku was a town located in Katsuta District, Okayama Prefecture, Japan.

Kume was a town located in Kume District, Okayama Prefecture, Japan.

Kibichūō is a town located in Kaga District, Okayama Prefecture, Japan. As of 1 March 2023, the town had an estimated population of 10,435 in 5142 households and a population density of 39 persons per km². The total area of the town is 268.73 square kilometres (103.76 sq mi).

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