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Hiroo ( ?尾郡 , Hiroo-gun ) is a district located in Tokachi Subprefecture , Hokkaido , Japan .

As of 2004, the district has an estimated population of 16,735 and a density of 10.80 persons per km ² . The total area is 1,550.06 km ² .

Towns and villages [ edit ]

• Hiroo
• Taiki

History [ edit ]

• April 1, 1906 Taiki Village, Rekifune Village, and part of T?bui Village from the former T?bui District merge with Moyori Village (now Hiroo Town)
• April 1, 1955 Part of ?tsu Village, Tokachi District incorporated into Taiki Town.
• On February 6, 2006 the village of Ch?rui merged into the town of Makubetsu , in Nakagawa (Tokachi) District .

42°28′12″N 143°10′12″E  /  42.47000°N 143.17000°E  / 42.47000; 143.17000

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