Demography
According to the census of 1991, the population was 974,447, of which 501,114 were tribal peoples and the rest were from different communities. The tribal peoples, collectively known as the Jumma, include the Chakma, Marma, Tripura, Tanchangya, Chak, Pankho, Mru, Murung, Bawm, Lushai, Khyang, Gurkha, Assamese, Santal, and Khumi.
The population of the three districts (zilas) totalled 1,587,000 in the provisional returns of the census of 2011. About 50% of the population are tribal peoples and mainly followers of Theravada Buddhism; 48% of the inhabitants are Bengali Muslims; the remainder are Hindus, Christians, or animists.
Read more about this topic: Chittagong Hill Tracts