Oregon drought risk
Umatilla County has the highest drought risk in Oregon, scoring 82.8 out of 100 — rated "Relatively Moderate" by FEMA's National Risk Index.
| # | County | NRI score | Rating |
NOAA events 2016–2026 |
|---|---|---|---|---|
| 1 | Umatilla County | 82.8 | Relatively Moderate | 0 |
| 2 | Klamath County | 24.7 | Very Low | 0 |
| 3 | Malheur County | 23.7 | Very Low | 0 |
| 4 | Morrow County | 21.1 | Very Low | 0 |
| 5 | Lake County | 20.2 | Very Low | 0 |
| 6 | Harney County | 19.2 | Very Low | 0 |
| 7 | Jefferson County | 18.7 | Very Low | 0 |
| 8 | Wasco County | 17.5 | Very Low | 0 |
| 9 | Jackson County | 17 | Very Low | 0 |
| 10 | Linn County | 17 | Very Low | 0 |
| 11 | Baker County | 16.7 | Very Low | 0 |
| 12 | Lane County | 16.5 | Very Low | 0 |
| 13 | Douglas County | 16.3 | Very Low | 0 |
| 14 | Marion County | 16.3 | Very Low | 0 |
| 15 | Sherman County | 16.1 | Very Low | 0 |
| 16 | Union County | 16 | Very Low | 0 |
| 17 | Gilliam County | 15.8 | Very Low | 0 |
| 18 | Crook County | 15.7 | Very Low | 0 |
| 19 | Deschutes County | 15.3 | Very Low | 0 |
| 20 | Hood River County | 15.1 | Very Low | 0 |
| 21 | Wallowa County | 14.9 | Very Low | 0 |
| 22 | Curry County | 14.2 | Very Low | 0 |
| 23 | Clackamas County | 14.1 | Very Low | 0 |
| 24 | Coos County | 14.1 | Very Low | 0 |
| 25 | Josephine County | 14.1 | Very Low | 0 |
| 26 | Benton County | 14 | Very Low | 0 |
| 27 | Wheeler County | 14 | Very Low | 0 |
| 28 | Grant County | 13.9 | Very Low | 0 |
| 29 | Lincoln County | 12.7 | Very Low | 0 |
| 30 | Multnomah County | 12.5 | Very Low | 0 |
| 31 | Yamhill County | 12.5 | Very Low | 0 |
| 32 | Polk County | 12.4 | Very Low | 0 |
| 33 | Clatsop County | 12.3 | Very Low | 0 |
| 34 | Tillamook County | 12.3 | Very Low | 0 |
| 35 | Washington County | 12.2 | Very Low | 0 |
| 36 | Columbia County | 0 | No Rating | 0 |
Source: FEMA National Risk Index v1.20.0, December 2025. Scores are 0–100 percentile rankings among all US counties. See the methodology page for definitions. Download the full CSV for all counties.
Drought risk nationally:
Other hazard risks in Oregon:
Frequently asked questions
What is the highest drought risk county in Oregon?
Umatilla County, OR has the highest drought risk in Oregon, with a FEMA National Risk Index score of 82.8 out of 100 (rated "Relatively Moderate").
What causes drought risk in Oregon?
Drought risk captures expected annual losses from prolonged precipitation deficits affecting agriculture, water supply, and ecosystems. High scores cover the western Great Plains, Southwest, and California's Central Valley. Climate change is increasing drought frequency and severity across much of the US, with multi-year droughts becoming more common in the West.