Idaho County is a county in the U.S. state of Idaho, and the largest by area in the state. As of the 2020 census, the population was 16,541. The county seat is Grangeville. Previous county seats of the area were Florence, Washington, and Mount... Wikipedia
Population: 17,593 (2022)
Cities: Grangeville, Kooskia, White Bird, and more
Area: 8,503 mi²
County seat: Grangeville