List of mergers in Niigata Prefecture

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

(as of April 1, 2008)

Mergers from April 1, 1999 to March 31, 2000

Mergers from April 1, 2000 to March 31, 2001

*On January 1, 2001 - The town of Kurosaki from Nishikanbara District was amagalated into the city of Niigata.

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

*On July 7, 2003 - The town of Toyoura from Kitakanbara District was amagalated into the city of Shibata.

*On March 1, 2004 - The city of Ryotsu merged with all towns and villages within Sado District (the towns of Aikawa, Kanai, Sawata, Hatano, Mano, Hamochi and Ogi; and the villages of Niibo, and Akadomari) to form the city of Sado. Sado District was dissolved with this merger.

Mergers from April 1, 2004 to March 31, 2005

*On April 1, 2004 - The towns of Suibara and Yasuda and the villages of Kyogase and Sasakami (all from Kitakanbara District) merged to form the city of Agano.

*On November 1, 2004 - The towns of Muika and Yamato from Minamiuonuma District merged to form the city of Minamiuonuma.

*On November 1, 2004 - The towns of Horinouchi and Koide and the villages of Hirokami, Irihirose, Sumon and Yunotani (all from Kitauonuma District) merged to form the city of Uonuma.

*On January 1, 2005 - The town of Yasuzuka and the villages of Maki, Oshima and Uragawara (all from Higashikubiki District); the towns of Itakura, Kakizaki, Ogata and Yoshikawa and the villages of Kiyosato, Kubiki, Nakagou and Sanwa (all from Nakakubiki District); and the town of Nadachi from Nishikubiki District were all merged into the city of Joetsu.

*On March 19, 2005 - The old city of Itoigawa merged with the remaining parts of Nishikubiki District (the towns of Nou and Oumi) to form the new city of Itoigawa. Nishikubiki District was dissolved by this action.

*On March 21, 2005 - The city of Niitsu, Shirone and Toyosaka, the towns of Kameda, Kosudo and Yokogoshi from Nakakanbara District and the town of Nishikawa and the villages of Ajikata, Iwamuro, Katahigashi, Nakanokuchi and Tsukigata from Nishikanbara District were all merged into the city of "Niigata".

Mergers from April 1, 2005 to March 31, 2006

*On April 1, 2005 - The remaining parts of Nakakubiki District (dissolved by this action) - the town of Myokokogen and the village of Myoko were merged into the city of "Arai". Arai changed its name to Myōkō at the same time.

*On April 1, 2005 - The town of Oguni from Kariwa District, the village of Yamakoshi from Koshi District, the town of Nakanoshima from Minamikanbara District and the towns of Koshiji and Mishima from Santo District merged into the city of Nagaoka. Koshi District was thereby dissolved.

*On April 1, 2005 - The old city of Tokamachi merged with the towns of Matsudai and Matsunoyama from Higashikubiki District (dissolved by this merger) and the town of Kawanishi and the village of Nakasato from Nakauonuma District to create the new city of Tokamachi.

*On April 1, 2005 - All municipalities within Higashikanbara District (Kamikawa, Kanose, Mikawa, and Tsugawa) merged to form the town of Aga.

*On May 1, 2005 - The towns of Nishiyama and Takayanagi from Kariwa District were merged into the city of Kashiwazaki.

*On May 1, 2005 - The town of Shiunji and the village of Kajikawa from Kitakanbara District were merged into the city of "Shibata".

*On May 1, 2005 - The city of Sanjo merged with the town of Sakae and the village of Shitada (both from Minamikanbara District) to create the city of Sanjo.

*On September 1, 2005 - The towns of Nakajo and Kurokawa (both from Kitakanbara District) merged to form the city of Tainai.

*On October 1, 2005 - The town of Shiozawa from Minamiuonuma District merged into the city of "Minamiuonuma".

*On October 10, 2005 - The town of Maki from Nishikanbara District merged into the city of "Niigata.

*On January 1, 2006 - The old city of Gosen merged with the town of Muramatsu from Nakakanbara District (dissolved by this merger) to form the new city of Gosen.

*On January 1, 2006 - The city of Tochio, the towns of Teradomari and Yoita and the village of Washima from Santo District were all absorbed into the city of "Nagaoka".

*On March 20, 2006 - The old city of Tsubame merged with the towns of Bunsui and Yoshida from Nishikanbara District to create the new city of Tsubame.

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

*On April 1, 2008 - The old city of Murakami merged with the towns of Sanpoku and Arakawa and the villege of Asahi and Kamihayashi from Iwafune District to create the new city of Murakami.