In the
2021 Canadian census conducted by
Statistics Canada, Chisasibi had a population of 4,985 living in 1,056 of its 1,281 total private dwellings an increase of 2.3% from its
2016 population of 4,872. With a land area of , it had a population density of in 2021. As of the 2021 census the population of Chisasibi comprises 4,305
Cree, 345 other
First Nations, 240
Inuit, 10
Métis, and 245 non-native people. The average age is 30.0 with 29.6 for men and 30.5 for women. The majority of the population is between 15 and 64 years old (61.5 per cent), 31.1 per cent are under 15 and 7.8 per cent are 65 and older.
Languages Cree is spoken as the first language in Chisasibi, in addition to English, as a primary language for official dealings. The
mother tongue of the majority of the residents is Cree at 81.3 per cent, with 6.6 per cent for other
indigenous languages. For Canada's
official languages, English is the mother tongue for 8.4 per cent and French for 2.9 per cent of the population. In addition 0.7 per cent report a non-Indigenous language as their mother tongue Around 76,4 per cent of the population speak English, with 3.5 per cent speaking French, 15.7 per cent speaking both English and French, and 4.4 per cent speaking neither. There has been criticism of the
Quebec language policy with respect to native languages, particularly Cree, many related to
Hydro-Québec's hydroelectric dam project in the James Bay region. ==Education==