In
Lai Châu Province, Vietnam, Mảng is spoken by 2,200 people in the districts of
Sìn Hồ,
Mường Tè,
Phong Thổ, and in other nearby areas, including in Nậm Ban Township,
Sìn Hồ District,
Lai Châu Province. In China, Mảng speakers numbered 606 people in 1999. The Mảng of China claim to have migrated from Vietnam in recent times. Gao's (2003) Mảng data is from Xinzhai (新寨), Nanke Village (南科村), and Jinshuihe Township (金水河镇). The
Jinping County Gazetteer from the
Republic of China period lists 12 Mảng villages: Gongdaniu (公打牛), Luowuzhai (落邬寨), Pinghe (坪河, in Xiazhai 下寨, Zhongzhai 中寨, Shangzhai 上寨), Hetouzhai (河头寨), Guanmuzhai (管木寨), Naxizhai (纳西寨), Bianjiezhai (边界寨), Longshuzhai (龙树寨), Caoguoping (草果坪), and Nanke (南科). ==Phonology==