Founded in 1863, Owyhee County is one of 44 counties in the state of Idaho. The city of Murphy is the county seat. With FIPS code of 73, Owyhee County has a population of 12,336 and area of 7,678 square miles (19,886 km2).
List of all cities in Owyhee County, ID alphabetically
| City/Town | Postal Code | Area Code |
| Bruneau, ID | 83604 | 208 |
| Bruneau Valley, ID | 83604 | 208 |
| Grand View, ID | 83624 | 208 |
| Grasmere, ID | 83604 | 208 |
| Homedale, ID | 83628 | 208 |
| Marsing, ID | 83639 | 208 |
| Murphy, ID | 83650 | 208 |
| Oreana, ID | 83650 | 208 |
| Reynolds, ID | 83650 | 208 |
| Riddle, ID | 83604 | 208 |
| Silver City, ID | 83650 | 208 |