242,000 in Ethiopia (2010 UNSD), increasing. L2 users: 5,660 in Ethiopia. No monolinguals. Total users in all countries: 247,660 (as L1: 242,000; as L2: 5,660).
Southern Nations, Nationalities, and Peoples’ region: south of Lake Chamo, Tsegen zone, near Tsegen river bend.
Gat(t)o is a town on both sides of Gatto River; those living on Konso side speak a dialect of Konso; those on Gidole side speak a dialect of Diraytta [gdl]. Traditional religion, Christian.