Butte County Map, Idaho

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Butte County, Idaho

Butte County is a tiny slice of Idaho that most folks drive right through. It’s high desert country, with the Lost River Range towering to the west. Arco is the county seat and claims to be the first town in the world lit by atomic power.

You’ll see more antelope than people in some areas. Craters of the Moon National Monument is located just to the south. It’s a bizarre landscape of lava flows and cinder cones.

Ranching is still big here. Summers are blazing hot, winters brutal. The Big Lost River really does get lost, sinking into the lava plains. There’s a sense of isolation that some folks love and others can’t stand.

Category	Details
County Name	Butte County
County Seat	Arco
Population	2,900
Cities, Towns, and Communities	Arco, Butte City, Leslie, and more
Interstates and Highways	U.S. Route 20, Idaho State Highway 33, Idaho State Highway 73
FIPS Code	16-023
Total Area	2,188 square miles (land: 2,178 sq mi; water: 10 sq mi)
Adjacent Counties	Custer County (Northwest), Lemhi County (Northwest), Clark County (Northeast), Jefferson County (East), Bingham County (Southeast), Blaine County (Southwest)
Time Zone	Mountain Time Zone
State	Idaho
Coordinates	43.6° N, 113.1° W
Etymology	Named after the Butte Mountains in the area. “Butte” refers to a steep hill with a flat top.
Major Landmarks	Craters of the Moon National Monument, Atomic City, Butte City, Big Southern Butte
Website	Butte County Website