- Oregon, Oregon, United States, (Administrative Boundary)5
- Corvallis, Oregon, United States, (Populated Place)4
- Willamette Valley, Oregon, United States, (Hypsographic)4
- Baja California, Baja California, Mexico, (Administrative Boundary)2
- Nigeria, , Nigeria, (Administrative Boundary)2
- Oregon Coast, Oregon, United States, (Area)2
- Puget Sound, Kitsap County, Washington, United States2
- Willamette River, Oregon, United States, (Hydrographic)2
- Arctic Ocean, , (Hydrographic)1
- Ashland, Oregon, United States, (Populated Place)1
- Baker, Oregon, United States, (Administrative Boundary)1
- Brazil, , Brazil, (Administrative Boundary)1
- Cascade Range, Oregon, United States, (Hypsographic)1
- Champoeg, Oregon, United States, (Populated Place)1
- Clackamas, Oregon, United States, (Administrative Boundary)1
- Deschutes, Oregon, United States, (Administrative Boundary)1
- Ebey's Landing National Historical Reserve, Island County, Washington, United States1
- Fort Yamhill (historical), Oregon, United States, (Spot)1
- Fremont National Forest, Oregon, United States, (Vegetation)1
- Ghana, , Ghana, (Administrative Boundary)1