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Gunma Prefecture (群馬県, Gunma-ken) is a prefecture of Japan located in the Kantō region of Honshu. Gunma Prefecture has a population of 1,937,626 (1 October 2019) and has a geographic area of 6,362 km2 (2,456 sq mi). Gunma Prefecture borders Niigata Prefecture and Fukushima Prefecture to the north, Nagano Prefecture to the southwest, Saitama Prefecture to the south, and Tochigi Prefecture to the east.

Maebashi is the capital and Takasaki is the largest city of Gunma Prefecture, with other major cities including ŌtaIsesaki, and Kiryū. Gunma Prefecture is one of only eight landlocked prefectures, located northwestern corner of the Kantō Plain with 14% of its total land being designated as Natural Parks.

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