What county is Grangeville In?

Grangeville is the county seat of Idaho County
Grangeville is located in Idaho County and is also the county seat of Idaho County.

Our county courthouse sits at the corner of Main Street and Idaho Avenue, at the only stoplight in the entire county.

Established by the Washington Territorial Legislature in 1862, Idaho County is the largest county in Idaho, covering 8503 square miles. It is located in the north-central region of Idaho, through which the Clearwater, Salmon and Snake rivers flow.

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