Pawhuska is a city in and the county seat of Osage County, Oklahoma, United States. As of the 2020 census, the population of the city was …Pawhuska is a city in and the county seat of Osage County, Oklahoma, United States. As of the 2020 census, the population of the city was 2,984. It was named after the 19th-century Osage chief, Paw-Hiu-Skah, which means "White Hair" in English. The Osage tribal government, which opened offices in Pawhuska in 1872 when its reservation was established in Indian Territory, continues to be based in Pawhuska.