The NPY Women Council's covers about 350,000 square kilometres of the remote area where the borders of Western Australia, South Australia and the Northern Territory meet. The region has a total population of about 6000. The council serves women belonging to the three indigenous groups in this region: the Ngaanyatjarra, Pitjantjatjara and Yankunytjatjara, who are closely related to one another. The area covered includes: