Founded in 1917, Butte County is one of 44 counties in the state of Idaho. Historically, Butte County was formed from Bingham, Blaine, and Jefferson Counties. The city of Arco is the county seat. With FIPS code of 23, Butte County has a population of 2,654 and area of 2,233 square miles (5,783 km2).
List of all cities in Butte County, ID alphabetically
| City/Town | Postal Code | Area Code |
| Arco, ID | 83213 | 208 |
| Clyde, ID | 83244 | 208 |
| Craters of the Moon National, ID | 83213 | 208 |
| Darlington, ID | 83255 | 208 |
| Howe, ID | 83244 | 208 |
| Moore, ID | 83255 | 208 |