Eeyou Istchee James Bay is a local municipality in the Jamésie (TE) in administrative region of Nord-du-Québec. Located to the east of James Bay, Eeyou Istchee James Bay covers 283,123.42 km2 (109,314.56 sq mi) of land, making it the largest incorporated municipality in Canada — only eight unorganized territories are larger. Its territory covers almost entirely the Equivalent territory of Jamésie.

Cree is a dialect continuum of Algonquian languages spoken by approximately 86,475 indigenous people across Canada in 2021, from the Northwest Territories to Alberta to Labrador. If considered one language, it is the aboriginal language with the highest number of speakers in Canada. The only region where Cree has any official status is in the Northwest Territories, alongside eight other aboriginal languages. There, Cree is spoken mainly in Fort Smith and Hay River.