Identifiers: city · CDP
| Rank | Community | Population |
|---|---|---|
| 1 | Beaverton (city), OR | 97,494 |
| 2 | Tigard (city), OR | 54,539 |
| 3 | Aloha (CDP), OR | 53,828 |
| 4 | Lake Oswego (city), OR | 40,731 |
| 5 | McMinnville (city), OR | 34,319 |
| 6 | Tualatin (city), OR | 27,942 |
| 7 | West Linn (city), OR | 27,373 |
| 8 | Wilsonville (city), OR | 26,664 |
| 9 | Woodburn (city), OR | 26,013 |
| 10 | Newberg (city), OR | 25,138 |
| 11 | Sherwood (city), OR | 20,450 |
| 12 | Canby (city), OR | 18,171 |
| 13 | Cedar Mill (CDP), OR | 17,259 |
| 14 | Gladstone (city), OR | 12,017 |
| 15 | Bull Mountain (CDP), OR | 9,992 |
| 16 | West Haven-Sylvan (CDP), OR | 9,299 |
| 17 | Cedar Hills (CDP), OR | 8,379 |
| 18 | Jennings Lodge (CDP), OR | 7,503 |
| 19 | West Slope (CDP), OR | 7,223 |
| 20 | Garden Home-Whitford (CDP), OR | 7,081 |