L1 users: 280,000 (2002). Total users in all countries: 495,000.
North, mainly along Red and Black rivers, Lai Chau, Dien Bien, Lao Cai, and Son La provinces; some in the south, Lam Dòng province, Tung Nghia.
6a (Vigorous). Language of recognized ethnic group: Thai.
Positive attitudes. Also use Tai Dam [blt], bilingually among some of the population.
Part of the Thái official ethnic community (1,550,423, 2009 census). Traditional religion, Buddhist.