23 cities
| City | County | 2025 Pop. ↓ |
|---|---|---|
| Redmond | Deschutes County | 38,589 |
| Roseburg | Douglas County | 23,826 |
| River Road | Lane County | 9,764 |
| Rockcreek | Multnomah County | 9,486 |
| Raleigh Hills | Washington County | 6,788 |
| Reedsport | Douglas County | 4,295 |
| Roseburg North | Douglas County | 4,167 |
| Redwood | Jackson County | 3,230 |
| Rogue River | Jackson County | 2,317 |
| Rainier | Columbia County | 1,938 |
| Ruch | Jackson County | 1,573 |
| Rockaway Beach | Tillamook County | 1,438 |
| Riddle | Douglas County | 1,222 |
| Rose Lodge | Lincoln County | 1,077 |
| Running Y Ranch | Klamath County | 970 |
| Rivergrove | Clackamas County | 536 |
| Riverside | Malheur County | 393 |
| Rocky Point | Klamath County | 376 |
| River Point | Clatsop County | 355 |
| Rufus | Sherman County | 290 |
| Rhododendron | Clackamas County | 237 |
| Richland | Baker County | 169 |
| Rowena | Wasco County | 119 |