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Kōchi Prefecture (高知県, Kōchi-ken, /ˈkoʊtʃi/; pronounced [koːtɕi ꜜkeɴ]) is a prefecture of Japan located on the island of Shikoku.[1] Kōchi Prefecture has a population of 757,914 (1 December 2011) and has a geographic area of 7,103 km2 (2,742 sq mi). Kōchi Prefecture borders Ehime Prefecture to the northwest and Tokushima Prefecture to the northeast.

Kōchi is the capital and largest city of Kōchi Prefecture, with other major cities including NankokuShimanto, and Kōnan. Kōchi Prefecture is located on Japan's Pacific coast surrounding a large bay in the south of Shikoku, with the southernmost point of the island located at Cape Ashizuri in Tosashimizu. Kōchi Prefecture is home to Kōchi Castle, considered the most intact Japanese castle, and the Shimanto River, one of the few undammed rivers in Japan.

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