Idaho County Map, Idaho

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Idaho County, Idaho

Idaho County is the biggest county in the state. It’s right in the heart of Idaho. The Nez Perce called this land home for thousands of years. Gold brought settlers here in the 1860s, changing everything.

Rugged mountains and deep forests cover much of the county. Hikers and campers flock to the Gospel Hump Wilderness. The Salmon River, nicknamed “The River of No Return,” cuts through it.

Grangeville serves as the county seat. It’s a small town with a lot of character. Elk and deer roam free, making it a hunter’s paradise. Logging trucks rumble down winding roads.

Category	Details
County Name	Idaho County
County Seat	Grangeville
Population	16,500
Cities, Towns, and Communities	Grangeville, Cottonwood, Riggins, Kooskia, and more
Interstates and Highways	U.S. Route 95, Idaho State Highway 13, Idaho State Highway 14
FIPS Code	16-049
Total Area	8,477 square miles (land: 8,321 sq mi; water: 156 sq mi)
Adjacent Counties	Clearwater County (North), Missoula County, Montana (Northeast), Ravalli County, Montana (East), Lemhi County (Southeast), Valley County (South), Adams County (Southwest), Wallowa County, Oregon (West), Nez Perce County (Northwest), Lewis County (Northwest)
Time Zone	Mountain Time Zone
State	Idaho
Coordinates	45.9° N, 116.1° W
Etymology	Named after the state of Idaho.
Major Landmarks	Salmon River, Hells Canyon, Clearwater National Forest, Nez Perce National Historical Park
Website	Idaho County Website