Butte County, Idaho

Butte County
Butte County
County
	Experimental Breeder Reactor I
	Seal
	Location within the U.S. state of Idaho
	Idaho's location within the U.S.
	Coordinates: 43°43′N 113°10′W / 43.72°N 113.17°W
Country	United States
State	Idaho
Founded	February 6, 1917
Named for	Big Southern Butte
Seat	Arco
Largest city	Arco
Area
• Total	2,234 sq mi (5,790 km2)
• Land	2,232 sq mi (5,780 km2)
• Water	2.0 sq mi (5 km2) 0.1%
Population (2020)
• Total	2,574
• Density	1.3/sq mi (0.5/km2)
Time zone	UTC−7 (Mountain)
• Summer (DST)	UTC−6 (MDT)
Congressional district	2nd

Butte County is a rural county located in the U.S. state of Idaho. As of the 2020 census, the population was 2,574,^[1] making it the third-least populous county in Idaho. Its county seat and largest city is Arco.^[2] The county was established in 1917 from parts of Bingham, Blaine, and Jefferson counties. The county gained territory in the Clyde area from Custer County in 1937 to reach its present boundary.^[3]

^ "State & County QuickFacts".
^ "Find a County". National Association of Counties. Archived from the original on May 31, 2011. Retrieved June 7, 2011.
^ Idaho Atlas of Historical County Boundaries. Chicago: The Newberry Library. 2010. pp. 63–64. Archived from the original on June 19, 2018. Retrieved February 3, 2017.

[QF-1] "State & County QuickFacts".

[GR6-2] "Find a County". National Association of Counties. Archived from the original on May 31, 2011. Retrieved June 7, 2011.

[3] Idaho Atlas of Historical County Boundaries. Chicago: The Newberry Library. 2010. pp. 63–64. Archived from the original on June 19, 2018. Retrieved February 3, 2017.

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