| Zip Code | City | Population ↓ |
|---|---|---|
| 83647 | Mountain Home | 22,106 |
| 83716 | Boise | 21,092 |
| 83648 | Mountain Home Afb | 3,184 |
| 83623 | Glenns Ferry | 1,580 |
| 83633 | King Hill | 629 |
| 83337 | Hill City | 15 |
The data shown reflect ZCTAs from the US Census. As of 2024, there are 6 ZCTAs in Elmore County, Idaho (US Census).