| Name | What | Region | Country | Lat | Long | Elev Ft. | Pop Est |
|---|
| Idanha | city | Oregon | United States | 44.70278 | -122.0775 | 1801 | 496 |
| Idaville | city | Oregon | United States | 45.51 | -123.86444 | 52 | 1581 |
| Idleyld Park | city | Oregon | United States | 43.32389 | -123.02278 | 1023 | 188 |
| Igo historical | city | Oregon | United States | 45.25222 | -120.27917 | 3277 | 61 |
| Illahe | city | Oregon | United States | 42.62889 | -124.05639 | 449 | 234 |
| Imbler | city | Oregon | United States | 45.45972 | -117.96111 | 2700 | 548 |
| Imnaha | city | Oregon | United States | 45.55944 | -116.83222 | 2175 | 47 |
| Imnaha River Woods Development | city | Oregon | United States | 45.26 | -116.80083 | 4829 | 47 |
| Imperial historical | city | Oregon | United States | 43.74722 | -120.44167 | 4498 | 0 |
| Independence | city | Oregon | United States | 44.85139 | -123.18556 | 196 | 8337 |
| Indian Valley historical | city | Oregon | United States | 45.51806 | -117.88333 | 2837 | 367 |
| Indian Village | city | Oregon | United States | 43.585 | -119.0775 | 4196 | 165 |
| Inglis | city | Oregon | United States | 46.12667 | -123.16389 | 200 | 1287 |
| Interlachen | city | Oregon | United States | 45.55194 | -122.44556 | 200 | 53043 |
| Ione | city | Oregon | United States | 45.50139 | -119.82361 | 1279 | 89 |
| Ironside | city | Oregon | United States | 44.32444 | -117.94361 | 3799 | 56 |
| Irrigon | city | Oregon | United States | 45.89583 | -119.49028 | 328 | 787 |
| Irving | city | Oregon | United States | 44.11361 | -123.16389 | 374 | 62796 |
| Irvington | city | Oregon | United States | 45.54056 | -122.65083 | 200 | 250850 |
| Island City | city | Oregon | United States | 45.34111 | -118.04361 | 2719 | 4511 |
| Izee | city | Oregon | United States | 44.06722 | -119.385 | 4199 | 126 |
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