Welcome to Elmore County
Elmore County was established February 7, 1889, with its county seat at Rocky Bar. It is named after the Ida Elmore mines, the area’s greatest silver and gold producer of the 1860s, located near Silver City in Owyhee County.
A station on the overland stage route, originally named Rattlesnake, was moved west to the railroad line and became Mountain Home. On February 4, 1891, the county seat was moved to Mountain Home.
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Elmore County Flea Market & Harvest Festival
Elmore County Harvest Festival
Department of Motor Vehicles
DMV Information
Addresses, links, frequently asked questions, and more. View the Elmore County DMV page.
Elmore County Fairgrounds
Expo Building and other facilities are available to rent! See Fairground page for more information.
Expo Building and other facilities are available to rent! See Fairground page for more information.
Current Job Openings
Check out current Elmore County job openings.
Check Your Polling Place
Anyone who needs to register to vote as a new voter, or to change your name or address must appear in person at the Courthouse to register.