Identifiers: city · CDP
| Rank | Community | Population |
|---|---|---|
| 1 | Corvallis (city), OR | 59,922 |
| 2 | Albany (city), OR | 56,472 |
| 3 | Lebanon (city), OR | 18,447 |
| 4 | Monmouth (city), OR | 11,110 |
| 5 | Independence (city), OR | 9,828 |
| 6 | Philomath (city), OR | 5,350 |
| 7 | Jefferson (city), OR | 3,327 |
| 8 | Tangent (city), OR | 1,231 |
| 9 | Adair Village (city), OR | 994 |
| 10 | Halsey (city), OR | 962 |
| 11 | Monroe (city), OR | 647 |
| 12 | Shedd (CDP), OR | 213 |
| 13 | Peoria (CDP), OR | 103 |
| 14 | Rickreall (CDP), OR | 76 |
| 15 | Bellfountain (CDP), OR | 74 |
| 16 | Blodgett (CDP), OR | 42 |