1,050 in Viet Nam (Bradley 2007). 450 May, 95 Ruc, 500 Sach (Bradley 2007). Population total all countries: 1,250. Ethnic population: 6,020 (2009 census).
Quang Binh Province, Thuong Hoa, Hoa Son, Dan Hoa communes, near Laos border at the same latitude as Mu Gia Pass. Also in Laos.
May, Ruc (Kha Mu Gia, Tac Cui), Sach.
Chút is an official ethnic community which includes Arem, Mày, Sách, and Ruc. Traditional religion.