| City | County | 2026 Pop. ↓ |
|---|---|---|
| Hillsboro | Washington County | 111,820 |
| Happy Valley | Clackamas County | 30,129 |
| Hayesville | Marion County | 22,857 |
| Hermiston | Umatilla County | 20,009 |
| Hood River | Hood River County | 8,318 |
| Harrisburg | Linn County | 3,781 |
| Hubbard | Marion County | 3,390 |
| Heceta Beach | Lane County | 2,732 |
| Harbor | Curry County | 2,099 |
| Hines | Harney County | 1,603 |
| Heppner | Morrow County | 1,111 |
| Halsey | Linn County | 943 |
| Huntington | Baker County | 499 |
| Hebo | Tillamook County | 381 |
| Haines | Baker County | 375 |
| Halfway | Baker County | 357 |
| Holley | Linn County | 232 |
| Helix | Umatilla County | 194 |
| Harper | Malheur County | 171 |