Eeyou Istcheeis a territory equivalent to a regional county municipality (TE) of Quebec that is represented by the Grand Council of the Crees. On July 24, 2012, the Quebec government signed an accord with the Cree Nation that resulted in the abolition of the neighbouring municipality of Baie-James and the creation of the new Eeyou Istchee James Bay Regional Government, providing for the residents of neighbouring Jamésie TE and Eeyou Istchee to jointly govern the territory formerly governed by the municipality of Baie-James.
The total land area of Eeyou Istchee is 5,271 km (2,035 sq mi), though the Grand Council of the Crees sees Eeyou Istchee as a much larger contiguous traditional territory and homeland of 450,000 square kilometres (170,000 sq mi). The total population of the area was 14,131 in 2006, according to the 2006 Canadian Census, and the largest municipality is the Cree village municipality of Chisasibi on the south bank of La Grande River near the northeast shore of James Bay.