Elmore County, Idaho

Elmore County, Idaho
Location within the U.S. state of Idaho
Coordinates: 43°20′N 115°28′W / 43.34°N 115.47°W / 43.34; -115.47
Country United States
State Idaho
FoundedFebruary 7, 1889
Named afterThe Ida Elmore mines, producer of silver and gold in the 1860s
SeatMountain Home
Largest cityMountain Home
Area
 • Total
3,101 sq mi (8,030 km2)
 • Land3,075 sq mi (7,960 km2)
 • Water26 sq mi (67 km2)  0.8%
Population
 (2020)
 • Total
28,666
 • Density9.322/sq mi (3.599/km2)
Time zoneUTC−7 (Mountain)
 • Summer (DST)UTC−6 (MDT)
Congressional district2nd
Websiteelmorecounty.org

Elmore County is a county in the U.S. state of Idaho. As of the 2020 census, the population was 28,666. The largest city and county seat is Mountain Home.

Elmore County comprises the Mountain Home, ID Micropolitan Statistical Area, which is also included in the Boise-Mountain Home-Ontario, ID-OR Combined Statistical Area.