| City | County | 2026 Pop. ↓ |
|---|---|---|
| Dallas | Polk County | 18,097 |
| Damascus | Clackamas County | 13,401 |
| Deschutes River Woods | Deschutes County | 5,911 |
| Dundee | Yamhill County | 3,181 |
| Dayton | Yamhill County | 2,643 |
| Dunthorpe | Clackamas County | 2,442 |
| Durham | Washington County | 1,886 |
| Depoe Bay | Lincoln County | 1,533 |
| Dunes City | Lane County | 1,395 |
| Drain | Douglas County | 1,193 |
| Donald | Marion County | 1,008 |
| Dexter | Lane County | 971 |
| Dufur | Wasco County | 637 |
| Dillard | Douglas County | 426 |
| Dilley | Washington County | 254 |
| Detroit | Marion County | 187 |
| Deer Island | Columbia County | 167 |
| Dayville | Grant County | 129 |
| Days Creek | Douglas County | 119 |