| City | County | 2025 Pop. ↓ |
|---|---|---|
| Dallas | Polk County | 18,082 |
| Damascus | Clackamas County | 13,194 |
| Deschutes River Woods | Deschutes County | 5,725 |
| Dundee | Yamhill County | 3,133 |
| Dayton | Yamhill County | 2,637 |
| Dunthorpe | Clackamas County | 2,209 |
| Durham | Washington County | 1,806 |
| Depoe Bay | Lincoln County | 1,532 |
| Dunes City | Lane County | 1,393 |
| Dexter | Lane County | 1,335 |
| Drain | Douglas County | 1,206 |
| Donald | Marion County | 992 |
| Dufur | Wasco County | 627 |
| Dilley | Washington County | 305 |
| Dillard | Douglas County | 276 |
| Deer Island | Columbia County | 214 |
| Detroit | Marion County | 179 |
| Days Creek | Douglas County | 136 |
| Dayville | Grant County | 132 |