| | Polk County | OR | 41053 | | Salem, OR 41420 | Portland-Vancouver-Salem,
OR-WA 440 | Central | metro county (urban) | nonspecialized | https://maps.google.com/?q=PolkCounty+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 |
| | 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 |
| | Baker County | OR | 41001 | | Baker City, OR 12520 | | Central | nonmetro county (rural) | recreation | https://maps.google.com/?q=BakerCounty+OR |
| | Clatsop County | OR | 41007 | | Astoria, OR 11820 | | Central | nonmetro county (rural) | recreation | https://maps.google.com/?q=ClatsopCounty+OR |
| | Coos County | OR | 41011 | | Coos Bay-North Bend, OR 18300 | | Central | nonmetro county (rural) | nonspecialized | https://maps.google.com/?q=CoosCounty+OR |
| | Crook County | OR | 41013 | | Bend, OR 13460 | | Outlying | nonmetro county (rural) | nonspecialized | https://maps.google.com/?q=CrookCounty+Oregon |
| | Curry County | OR | 41015 | | Brookings, OR 15060 | Brookings-Crescent City,
OR-CA 152 | Central | nonmetro county (rural) | recreation | https://maps.google.com/?q=CurryCounty+OR |
| | Douglas County | OR | 41019 | | Roseburg, OR 40700 | | Central | nonmetro county (rural) | nonspecialized | https://maps.google.com/?q=DouglasCounty+OR |
| | Gilliam County | OR | 41021 | | | | | nonmetro county (rural) | nonspecialized | https://maps.google.com/?q=GilliamCounty+OR |