Youyi County () is a county of eastern Heilongjiang province, People's Republic of China. It is under the jurisdiction of the prefecture-level city of Shuangyashan.
Administrative divisions Youyi County is divided into 4 towns, 6 townships and 1 ethnic township. 4 towns Youyi (), Xinglong (), Longshan (), Fenggang () 6 townships Xingsheng (), Dongjian (), Qingfeng (), Jianshe (), Youlin (), Xinzhen () 1 ethnic township Chengfu Korean and Manchu ()
Demographics The population of the district was in 1999. National Population Statistics Materials by County and City - 1999 Period, in China County & City Population 1999, Harvard China Historical GIS
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