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Datai Subdistrict (Chinese: 大台街道; pinyin: Dàtái Jiēdào) is a subdistrict of central Mentougou District, Beijing, China. It borders Yanchi and Wanping Towns in the north, Wanping and Yongding Towns in the east, Fozizhuang and Da'anshan Towns in the south, and Zhaitang Town in the west. In the year 2020, the population for this subdistrict was 3,728.