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.
Elmore County offices have upgraded the phone system. We would like to advise the public that all numbers and extensions will remain the same with the exception that a 1 (one) will now be added to the beginning of all extensions (example: extension 200 is now 1200). Thank you for your patience as this transition takes place and for us to update our numbers that are published to all sites and locations.
Department of Motor Vehicles
Addresses, links, frequently asked questions, and more. View the Elmore County DMV page.
Elmore County Fairgrounds
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.