Sac and Fox Tribe of the Mississippi in Iowa Tags: Ethnic Group.The Sac and Fox Tribe of the Mississippi in Iowa is one of three federally recognized Native American tribes of Sac and Meskwaki (Fox) peoples. Their name for themselves is Meskwaki. They are Algonquian peoples and Eastern Woodland culture. thumbnail language Fox language, English language population place United States related Kickapoo people, Sauk people, Meskwaki, Algonquian peoples religion Christianity total population 1300 Learn more... Loading...