| County | Mixed Race Percentage of Total Population |
| Multnomah |  4 |
| Coos | 4 |
| Lane | 4 |
| Washington | 4 |
| Klamath | 4 |
| Wheeler | 4 |
| Lincoln | 4 |
| Benton | 4 |
| Columbia | 3 |
| Polk | 3 |
| Curry | 3 |
| Jefferson | 3 |
| Marion | 3 |
| Douglas | 3 |
| Lake | 3 |
| Jackson | 3 |
| Josephine | 3 |
| Linn | 3 |
| Clackamas | 3 |
| Yamhill | 3 |
| Harney | 3 |
| Clatsop | 3 |
| Hood River | 2 |
| Grant | 2 |
| Umatilla | 2 |
| Deschutes | 2 |
| Union | 2 |
| Baker | 2 |
| Tillamook | 2 |
| Wasco | 2 |
| Malheur | 2 |
| Morrow | 2 |
| Wallowa | 2 |
| Crook | 2 |
| Gilliam | 2 |
| Sherman | 1 |