List of mergers in Ōita Prefecture

The following is a list of mergers that occurred in the 2000s in Ōita Prefecture, Japan.

(as of March 31, 2006)

Mergers from April 1, 1999 to March 31, 2000

Mergers from April 1, 2000 to March 31, 2001

Mergers from April 1, 2001 to March 31, 2002

Mergers from April 1, 2002 to March 31, 2003

Mergers from April 1, 2003 to March 31, 2004

Mergers from April 1, 2004 to March 31, 2005

*On January 1, 2005 - the city of Usuki and the town of Notsu from Ōno District merged to form the city of Usuki.

*On January 1, 2005 - the towns of Notsuharu from Ōita District and Saganoseki from Kitaamabe District merged into the city of Ōita. Kitaamabe District was dissolved with this merger.

*On March 1, 2005 - the municipalities of Honyabakei, Sanko, Yabakei and Yamakuni from Shimoge District merged into the city of Nakatsu. Shimoge District was dissolved with this merger.

*On March 3, 2005 - the city of Saiki and the municipalities of Honjo, Kamae, Kamiura, Naokawa, Tsurumi, Ume, Yayoi and Yonozu (all from Minamiamabe District) merged to form the city of Saiki. Minamiamabe District was dissolved with this merger.

*On March 22, 2005 - the municipalities of Amagase, Kamitsue, Maetsue, Nakatsue and Ōyama (all from Hita District) merged into the city of Hita. Hita District was dissolved with this merger.

*On March 31, 2005 - the municipalities of Asaji, Chitose, Inukai, Kiyokawa, Mie, Ogata and Ōno (all from Ōno District) merged to form the new city of Bungo-ōno. Ōno District was dissolved with this merger.

*On March 31, 2005 - the city of Usa and the towns of Ajimu and Innai (both from Usa District) merged to form the city of Usa. Usa District was dissolved with this merger.

*On March 31, 2005 - the city of Bungotakada and the towns of Kakadi and Matama (both from Nishikunisaki District) merged to form the city of Bungotakada.

Mergers from April 1, 2005 to March 31, 2006

*On April 1, 2005 - the city of Taketa and the towns of Kuju, Naoiri and Ogi (all from Naoiri District) merged to form the city of Taketa. Naoiri District was dissolved with this merger.

*On October 1, 2005 - Despite further opposition, the towns of Hasama, Shonai and Yufuin (all from Ōita District) merged to form the new city of Yufu. Ōita District was dissolved with this merger.

*On October 1, 2005 - the city of Kitsuki and the village of Ōta from Nishikunisaki District and the town of Yamaga from Hayami District merged to form the city of Kitsuki. Nishikunisaki District was dissolved with this merger.

*On March 31, 2006 - the towns of Aki, Kunimi, Kunisaki and Musashi from Higashikunisaki District merged to form the new city of Kunisaki.

Mergers from April 1, 2006 to March 31, 2007

Mergers from April 1, 2007 to March 31, 2008

Mergers from April 1, 2008 to March 31, 2009