Dawes County is a county in the U.S. state of Nebraska. As of the 2020 census, the population was 8,199, and was estimated to be 7,858 in 2025. The county seat and the largest city is Chadron.
Sioux County is a county in the U.S. state of Nebraska. As of the 2020 census, the population was 1,135, and was estimated to be 1,188 in 2025. The county seat and the largest village is Harrison.