| | Union County | OR | 41061 | | La Grande, OR 29260 | | Central | nonmetro county (rural) | federal/state
government-dependent | https://maps.google.com/?q=UnionCounty+OR |
| | Wallowa County | OR | 41063 | | | | Non-metropolitan | nonmetro county (rural) | recreation | https://maps.google.com/?q=WallowaCounty+OR |
| | Wasco County | OR | 41065 | | The Dalles, OR 45520 | | Central | nonmetro county (rural) | nonspecialized | https://maps.google.com/?q=WascoCounty+OR |
| | Washington County | OR | 41067 | | Portland-Vancouver-Hillsboro,
OR-WA 38900 | Portland-Vancouver-Salem,
OR-WA 440 | Central | metro county (urban) | manufacturing-dependent | https://maps.google.com/?q=WashingtonCounty+OR |
| | Wheeler County | OR | 41069 | | | | Non-metropolitan | nonmetro county (rural) | farm-dependent | https://maps.google.com/?q=WheelerCounty+OR |
| | Yamhill County | OR | 41071 | | Portland-Vancouver-Hillsboro,
OR-WA 38900 | Portland-Vancouver-Salem,
OR-WA 440 | Outlying | metro county (urban) | nonspecialized | https://maps.google.com/?q=YamhillCounty+OR |