Founded in 1887, Wallowa County is one of 36 counties in the state of Oregon. Historically, Wallowa County was formed from Eastern portion of Union County. The city of Enterprise is the county seat. With FIPS code of 63, Wallowa County has a population of 7,545 and area of 3,145 square miles (8,146 km2).
List of all cities in Wallowa County, OR alphabetically
| City/Town | Postal Code | Area Code |
| Enterprise, OR | 97828 | 541 |
| Imnaha, OR | 97842 | 541 |
| Joseph, OR | 97846 | 541 |
| Lostine, OR | 97857 | 541 |
| Wallowa, OR | 97885 | 541 |