Founded in 1895, Blaine County is one of 44 counties in the state of Idaho. Historically, Blaine County was formed from Alturas and Logan Counties. The city of Hailey is the county seat. With FIPS code of 13, Blaine County has a population of 24,766 and area of 2,645 square miles (6,851 km2).
List of all cities in Blaine County, ID alphabetically
| City/Town | Postal Code | Area Code |
| Bellevue, ID | 83313 | 208 |
| Broadford, ID | 83313 | 208 |
| Carey, ID | 83320 | 208 |
| East Magic, ID | 83313 | 208 |
| Elk Horn, ID | 83354 | 208 |
| Gannett, ID | 83313 | 208 |
| Hailey, ID | 83333 | 208 |
| 83348 | 208 | |
| Ketchum, ID | 83340 | 208 |
| Muldoon, ID | 83320 | 208 |
| Picabo, ID | 83348 | 208 |
| Sawtooth City, ID | 83340 | 208 |
| Sun Valley, ID | 83353 | 208 |
| 83354 | 208 | |
| Triumph, ID | 83333 | 208 |