| Country | Speakers | Comment |
|---|---|---|
| Tanzania | 87000 | |
| Zambia | 174, 000 | in Zambia (Johnstone 1993). 14, 698 Iwa and 7, 171 Tambo (1969 census). Population total all countries: 261, 000. East Northern Province to Lake Rukwa. Also in Tanzania. Alternate names: Ichinamwanga, Inamwanga, Mwanga, Namwanga. Dialects: Iwa, Tambo (Tembo). Classification: Niger-Congo, Atlantic-Congo, Volta-Congo, Benue-Congo, Bantoid, Southern, Narrow Bantu, Central, M, Nyika-Safwa (M.20) |