List of Dissolved Districts of Japan - 2006~

2006~

January 1, 2006

• Hienuki District (稗貫郡), Iwate (The towns of Ōhasama and Ishidoriya merged with the town of Tōwa from Waga District and the city of Hanamaki to form the city of Hanamaki)
• Nakakanbara District (中蒲原郡), Niigata (The town of Muramatsu merged with the city of Gosen to form the city of Gosen)
• Age District (安芸郡), Mie (The towns of Kawage, Geinō, Anō, and the village of Misato merged with the 4 towns and villages from Ichishi District and the cities of Hisai and Tsu to form the city of Tsu)
• Ichishi District (一志郡), Mie (The towns of Ichishi, Karasu, Hakusan, and the village of Misugi merged with 4 towns and village from Age District and the cities of Hisai and Tsu to form the city of Tsu)
• Kanzaki District (神崎郡), Shiga (The town of Notogawa merged into the city of Higashiōmi)
• Amata District (天田郡), Kyoto (The towns of Miwa and Yakuno merged into the city of Fukuchiyama)
• Kasa District (加佐郡), Kyoto (The town of Ōe merged into the city of Fukuchiyama)
• Kitakuwada District (北桑田郡), Kyoto (The town of Miyama merged with 3 towns from Funai District to form the city of Nantan)
• Mitoyo District (三豊郡), Kagawa (The towns of Takase, Yamamoto, Mino, Toyonaka, Takuma, Nio, and Saita merged to form the city of Mitoyo)

January 23, 2006

• Toki District (土岐郡), Gifu (The town of Kasahara merged into the city of Tajimi)

February 1, 2006

• Asuwa District (足羽郡), Fukui (The town of Miyama merged into the city of Fukui)

February 11, 2006

• Tsuna District (津名郡), Hyōgo (The town of Goshiki merged with the city of Sumoto to form the city of Sumoto)

March 1, 2006

• Fukayasu District (深安郡), Hiroshima (The town of Kannabe merged into the city of Fukuyama)
• Kami District (香美郡), Kochi (The towns of Tosayamada and Kahoku and the village of Monobe merged to form the city of Kami; the towns of Akaoka, Kagami, Noichi, and Yasu and the village of Yoshikawa merged to form the city of Kōnan)

March 3, 2006

• Onyu District (遠敷郡), Fukui (The village of Natasho merged with the town of Ōi from Ōi District to form the town of Ōi in Ōi District)

March 15, 2006

• Kitakoma District (北巨摩郡), Yamanashi (The town of Kobuchisawa merged into the city of Hokuto)

March 18, 2006

• Usui District (碓氷郡), Gunma (The town of Matsuida merged with the city of Annaka to form the city of Annaka)

March 19, 2006

• Nishiibaraki District (西茨城郡), Ibaraki (The towns of Tomobe and Iwama merged with the city of Kasama to form the city of Kasama)

March 20, 2006

• Sakai District (坂井郡), Fukui (The towns of Sakai, Mikuni, Maruoka, and Harue merged to form the city of Sakai)
• Shiga District (滋賀郡), Shiga (The town of Shiga merged into the city of Ōtsu)
• Katō District (加東郡), Hyōgo (The towns of Yashiro, Takino, and Tōjō merged to form the city of Katō)

March 27, 2006

• Niihari District (新治郡), Ibaraki (The village of Tamari merged with the towns of Ogawa and Minori from Higashiibaraki District to form the city of Omitama)
• Tsukuba District (筑波郡), Ibaraki (The town of Ina and the village of Yawara merged to form the city of Tsukubamirai)
• Nitta District (新田郡), Gunma (The town of Kasakake merged with the town of Omama from Yamada District and the village of Azuma from Seta District to form the city of Midori)
• Yamada District (山田郡), Gunma (The town of Omama merged with the town of Kasakake from Nitta District and the village of Azuma from Seta District to form the city of Midori)
• Sōsa District (匝瑳郡), Chiba (The town of Hikari merged with the town of Yokoshiba from Sanbu District to form the town of Yokoshibahikari in Sanbu District)
• Shisō District (宍粟郡), Hyōgo (The town of Yasutomi merged into the city of Himeji)
• Shikama District (飾磨郡), Hyōgo (The towns of Ieshima and Yumesaki merged into the city of Himeji)

March 31, 2006

• Shizunai (静内郡) and Mitsuishi (三石郡) Districts, Hokkaidō (Merged to form Hidaka District (日高郡))
• Shida District (志田郡), Miyagi (The towns of Sanbongi, Matsuyama, and Kashimadai merged with two towns from Tamatsukuri District, the town of Tajiri from Tōda District, and the city of Furukawa to form the city of Ōsaki)
• Tamatsukuri District (玉造郡), Miyagi (The towns of Iwadeyama and Naruko merged with three towns from Shida District, the town of Tajiri from Tōda District, and the city of Furukawa to form the city of Ōsaki)
• Minamitakaki District (南高来郡), Nagasaki (The towns of Kazusa, Kuchinotsu, Minamiarima, Kitaarima, Nishiarie, Arie, Futsu, and Fukae merged to form the city of Minamishimabara)

April 1, 2006

• Naga District (那賀郡), Wakayama (The town of Iwade gained city status to become the city of Iwade)

August 1, 2006

• Higashiyatsushiro District (東八代郡), Yamanashi (The village of Ashigawa merged into the city of Fuefuki)

October 1, 2006

• Gunma District (群馬郡), Gunma (The town of Haruna merged into the city of Takasaki)

January 22, 2007

• Mitsu District (御津郡), Okayama (The town of Takebe merged into the city of Okayama)
• Akaiwa District (赤磐郡), Okayama (The town of Seto merged into the city of Okayama)

January 29, 2007

• Yamato District (山門郡), Fukuoka (The towns of Setaka and Yamakawa merged with the town of Takata from Miike District to form the city of Miyama)
• Miike District (三池郡), Fukuoka (The town of Takata merged with the towns of Yamakawa and Setaka from Yamato District to form the city of Miyama)

March 11, 2007

• Tsukui District (津久井郡), Kanagawa (The towns of Shiroyama and Fujino merged into the city of Sagamihara)

October 1, 2007

• Saga District (佐賀郡), Saga (The towns of Kawasoe, Kubota, and Higashiyoga merged into the city of Saga)

December 1, 2007

• Kawanabe District (川辺郡), Kagoshima (The towns of Kawanabe and Chiran merged with the town of Ei from Ibusuki District to form the city of Minamikyūshū)
• Ibusuki District (揖宿郡), Kagoshima (The town of Ei merged with the towns of Kawanabe and Chiran from Kawanabe District to form the city of Minamikyūshū)

March 21, 2008

• Mine District (美祢郡), Yamaguchi (The towns of Mitō and Shūhō merged with the city of Mine to form the city of Mine)

November 1, 2008

• Ihara District (庵原郡), Shizuoka (The town of Yui merged into the city of Shizuoka, the town of Fujikawa merged into the city of Fuji)
• Isa District (伊佐郡), Kagosima (The town of Hishikari merged with the city of Ōkuchi to form the city of Isa)

January 1, 2009

• Shida District (志太郡), Shizuoka (The town of Okabe merged into the city of Fujieda)

March 30, 2009

• Minaminaka District (南那珂郡), Miyazaki (The towns of Kitagō and Nangō merged with the city of Nichinan to form the city of Nichinan)

May 5, 2009

• Seta District(勢多郡), Gunma (The village of Fujimi merged into the city of Maebashi)

January 1, 2010

• Higashiazai District(東浅井郡), Shiga (The towns of Torahime and Kohoku merged into the city of Nagahama)
• Ika District(伊香郡), Shiga (The towns of Takatsuki, Kinomoto, Yogo, and Nishiazai merged into the city of Nagahama)
• Itoshima District(糸島郡), Fukuoka (The towns of Nijō and Shima merged with the city of Maebaru to form the city of Itoshima)

January 4, 2010

• Nishikamo District(西加茂郡), Aichi (The town of Miyoshi become the city of Miyoshi)

February 1, 2010

• Hoi District(宝飯郡), Aichi (The town of Kozakai merged into the city of Toyokawa)

March 23, 2010

• Kitasaitama District(北埼玉郡), Saitama (The towns of Kisai, Kitakawabe, and Ōtone merged with the city of Kazo to form the city of Kazo)
• Fuji District(富士郡), Shizuoka (The town of Shibakawa merged into the city of Fujinomiya)
• Hamana District(浜名郡), Shizuoka (The town of Arai merged into the city of Kosai)
• Kamoto District(鹿本郡), Kumamoto (The town of Ueki merged into the city of Kumamoto)
• Miyazaki District(宮崎郡), Miyazaki (The town of Kiyotake merged into the city of Miyazaki)

March 31, 2010

• Kitauonuma District(北魚沼郡), Niigata (The town of Kawaguchi merged into the city of Nagaoka)

April 1, 2011

• Hazu District(幡豆郡), Aichi (The towns of Hazu, Isshiki and Kira merged into the city of Nishio)

August 1, 2011

• Yatsuka District(八束郡), Shimane (The town of Higashiizumo merged into the city of Matsue)

September 26, 2011

• Higashiiwai District(東磐井郡), Iwate (The town of Fujisawa merged into the city of Ichinoseki)

October 1, 2011

• Kamitsuga District(上都賀郡), Tochigi (The town of Nishikata merged into the city of Tochigi)
• Hikawa District(簸川郡), Shimane (The town of Hikawa merged into the city of Izumo)

November 11, 2011

• Ishikawa District(石川郡), Ishikawa (The town of Nonoichi become the city of Nonoichi)