保安县(Huyện Bảo Yên)是越南老街省的一个县,面积821平方公里。截止2003年,共有人口73,924人。
Bảo Yên is a rural district of Lào Cai Province in the Northeast region of Vietnam. As of 2003, the district had a population of 73,924. The district covers an area of 821 km². The district capital lies at Phố Ràng.
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