Oshima Sub-Prefecture

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Location of Oshima Sub-Prefecture

Oshima ( Jap. 渡島総合振興局 , Oshima-Sogo-Shinko-kyoku ) is a sub-prefecture of Hokkaido Prefecture . It has an area of ​​3,936.08 km² and a population of 456,300 (as of August 31, 2005).


The Oshima Sub-prefecture extends over the eastern part of the Oshima Peninsula - the western part belongs to the Hiyama Sub-prefecture .


The sub-prefecture of Oshima ( 渡 島 支 庁 , Oshima-shichō ) was established in 1897.

When Hokkaidō was reorganized on April 1, 2010, it was renamed Oshima-sōgō-shinkō-kyoku .

Administrative division

Parishes of Oshima Sub-prefecture

Big cities ( , shi )

Seat of the Oshima Sub-Prefectural Administration in Hakodate
  • Seat of the sub-prefecture administration: Hakodate

Counties ( , gun )

List of counties in the sub-prefecture of Oshima, as well as their cities ( , chō ) and villages ( , mura ).


  • On December 1, 2004, the cities of Minamikayabe in the district of Kayabe, Esan and Toi and the village of Todohokke in the district of Kameda were incorporated into the city of Hakodate.
  • On April 1, 2005, the towns of Sawara and Mori in Kayabe County merged to form the new town of Mori.
  • On October 1, 2005, the cities of Kumaishi in Nishi County in Hiyama Sub-Prefecture and Yakumo in Yamakoshi County merged to form the new city of Yakumo in the newly created Futami County . The urban area of ​​Kumaishi was added to the sub-prefecture of Oshima.
  • On February 1, 2006, the cities of Kamiiso in the district of Kamiiso and Ōno in the district of Kameda merged to form the new city of Hokuto.


Hakodate Airport is located in Hakodate .

Web links

Commons : Oshima Sub-prefecture  - collection of pictures, videos and audio files