Idaho County Map with Roads

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 Idaho.
  • Country: United States
  • State: Idaho
  • Founded: December 20, 1861
  • Named after: Idaho
  • Seat: Grangeville
  • Largest city: Grangeville
  • North of Salmon River: UTC−8 (Pacific)

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Data from: en.wikipedia.org