The Ngindo are an ethnic and linguistic group based in east-central Tanzania, south of the Rufiji River. In 1987 the Ngindo population was estimated to number 220,000
Digo (Chidigo) is a Bantu language spoken primarily along the East African coast between Mombasa and Tanga by the Digo people of Kenya and Tanzania. The ethnic Digo population has been estimated at around 360,000 (Mwalonya et al. 2004), the majority of whom are presumably speakers of the language. All adult speakers of Digo are bilingual in Swahili, East Africa's lingua franca. The two languages are closely related, and Digo also has a lot of vocabulary borrowed from neighbouring Swahili dialects.