Mahnomen County is a county in the U.S. state of Minnesota. As of the 2020 census, the population was 5,411. Its county seat is Mahnomen.
The county is part of the White Earth Indian Reservation. It is the only county in Minnesota entirely within an Indian reservation. Mahnomen, East Polk, and Becker counties constitute one of northwestern Minnesota's biggest cattle-raising areas. From Wikipedia
