The southwest Alaska Natives are named after the two main dialects of the Yup’ik language, known as Yup’ik and Cup’ik. The estimated population, at the time of contact, was: Nunivak 500, Yukon-Kuskokwim 13,000 and Bristol Bay 3,000.

Akiachak, Limited is a native corporation representing the village of Akiachak. Akiachak is located on the west bank of the Kuskokwim River in the Yukon–Kuskokwim Delta, 18 miles (29 km) northeast of Bethel, Alaska.