Clearwater County is a county located in the U.S. state of Idaho. As of the 2020 census, the population was 8,734. The county seat is Orofino. Established in 1911, the county was named after the Clearwater River.

Orofino is a city in and the county seat of Clearwater County, Idaho, United States, along Orofino Creek and the north bank of the Clearwater River. It is the major city within the Nez Perce Indian Reservation. The population was 3,142 at the time of the 2010 census.