Founded in 1889, Elmore County is one of 44 counties in the state of Idaho. Historically, Elmore County was formed from Alturas County. The city of Mountain Home is the county seat. With FIPS code of 39, Elmore County has a population of 28,827 and area of 3,078 square miles (7,972 km2).
List of all cities in Elmore County, ID alphabetically
| City/Town | Postal Code | Area Code |
| Anderson Dam, ID | 83647 | 208 |
| Atlanta, ID | 83601 | 208 |
| Boise, ID | 83601 | 208 |
| Featherville, ID | 83647 | 208 |
| Glenns Ferry, ID | 83623 | 208 |
| 83633 | 208 | |
| Hammett, ID | 83627 | 208 |
| Indian Cove, ID | 83627 | 208 |
| King Hill, ID | 83633 | 208 |
| Mount Home, ID | 83647 | 208 |
| Mountain Home, ID | 83647 | 208 |
| Mountain Home Air Force Base, ID | 83648 | 208 |
| Oasis, ID | 83647 | 208 |
| Paradise HOT, ID | 83647 | 208 |
| Paradise Hot Springs, ID | 83647 | 208 |
| Pine, ID | 83647 | 208 |
| Prairie, ID | 83647 | 208 |
| Rocky Bar, ID | 83647 | 208 |
| Tipanuk, ID | 83647 | 208 |