- Idaho County, Idaho (data.census.gov)
Idaho County, Idaho has 8,477.5 square miles of land area and is the 1st largest county in Idaho by total area. Idaho County, Idaho is bordered by Missoula County, Montana, Adams County, Idaho, Wallowa County, Oregon, Lemhi County, Idaho, Ravalli County, Montana, Lewis County, Idaho, Clearwater County, Idaho, Nez Perce County, Idaho, and Valley County, Idaho.
eastbound on U.S. Route 12
site of Nez Perce National Historical Park
- Idaho County, Idaho (Wikipedia)
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 (1864–68), Washington (1868–75), and Mount Idaho (1875–1902). Despite the name, Idaho City is in Boise County further south.
