19 cities
| City | County | 2026 Pop. ↓ |
|---|---|---|
| Hillsboro | Washington County | 111,963 |
| Happy Valley | Clackamas County | 31,404 |
| Hayesville | Marion County | 22,857 |
| Hermiston | Umatilla County | 19,888 |
| Hood River | Hood River County | 8,365 |
| Harrisburg | Linn County | 3,747 |
| Hubbard | Marion County | 3,386 |
| Heceta Beach | Lane County | 2,732 |
| Harbor | Curry County | 2,099 |
| Hines | Harney County | 1,607 |
| Heppner | Morrow County | 1,082 |
| Halsey | Linn County | 949 |
| Huntington | Baker County | 507 |
| Hebo | Tillamook County | 381 |
| Haines | Baker County | 375 |
| Halfway | Baker County | 358 |
| Holley | Linn County | 232 |
| Helix | Umatilla County | 191 |
| Harper | Malheur County | 171 |