L1 users: 900 (Nahhas 2007), decreasing. Ethnic population: 1,500 (Nahhas 2007).
Phrae province: Ban Dong district, east of provincial capital; Nan province: Ban Sakoen district.
Ban Dong, Ban Sakoen. Ban Dong and Ban Sakoen Mpi are mutually intelligible (based on self-report of Ban Dong and Ban Sakoen residents). Lexical similarity: 86% between Ban Dong and Ban Sakoen dialects.
Thai script [Thai].
Kaw is used in Ban Sakoen. Possibly some in China who refer to their language as Pu Kaw. Mpi is spoken in 2 villages. Buddhist.