
Elmore County
- State:
- Idaho
- County Seat:
- Mountain Home
Elmore County's estimated 2025 population is 30,390 with a growth rate of 1.11% in the past year according to the most recent United States census data. Elmore County is the 13th largest county in Idaho. The 2010 population was 27,125 and has seen a growth of 12.04% since that time.