Natural disaster risk in Yamhill County, Oregon
Oregon · population 105,667 · FIPS 41071
Overall: relatively moderate risk
Yamhill County has a composite risk score of 82.9 out of 100 — higher than 82% of US counties. It ranks 16 of 36 in Oregon (1 = highest risk). Its highest-rated hazards are earthquake, heat wave, landslide.
Drought now: Yes: D1 Moderate Drought, 23 weeks
Yes. On the U.S. Drought Monitor map valid 13 October 2026, 15.16% of Yamhill County is in D1 Moderate Drought. Some of it has been at D1 or worse for 23 weeks in a row.
Drought in Yamhill County: the last 52 weeks · droughtmonitor.unl.edu
The U.S. Drought Monitor is jointly produced by the National Drought Mitigation Center at the University of Nebraska-Lincoln, the United States Department of Agriculture, the National Oceanic and Atmospheric Administration and the National Aeronautics and Space Administration. Map courtesy of NDMC.
Risk, loss, vulnerability and resilience
| Measure | Rating and score |
|---|---|
| Overall risk Expected annual loss, adjusted for social vulnerability and community resilience. |
Relatively moderate 82.9 |
| Expected annual loss About $55.7 million a year, on average, across all 18 hazards. |
Relatively moderate 85.3 |
| Social vulnerability Higher means people may find it harder to prepare and recover. |
Relatively low 24.3 |
| Community resilience Higher means a stronger ability to prepare, adapt and recover. |
Relatively high 60.5 |
Risk by hazard
FEMA's risk rating for each of 18 natural hazards in Yamhill County, highest first. "Not applicable" means the hazard is not modelled here.
| Hazard | Risk rating and score |
|---|---|
| Earthquake | Relatively moderate 96 |
| Heat wave | Relatively moderate 88 |
| Landslide | Relatively moderate 87 |
| Inland (riverine) flooding | Relatively moderate 74 |
| Ice storm | Relatively moderate 68 |
| Volcanic activity | Relatively low 84 |
| Strong wind | Relatively low 43 |
| Lightning | Relatively low 37 |
| Winter weather | Relatively low 29 |
| Wildfire | Very low 52 |
| Cold wave | Very low 21 |
| Tornado | Very low 18 |
| Drought | Very low 12 |
| Hail | Very low 9 |
| Avalanche | Very low 6 |
| Coastal flooding | No rating |
| Hurricane | Not applicable |
| Tsunami | Not applicable |
FEMA disaster declarations for Yamhill County
Federal declarations that designated Yamhill County, since 1 Jan 2024 (the period this site keeps from OpenFEMA). Older declarations are in FEMA's own dataset.
Yes. Yamhill County has been named in 2 FEMA declarations since 1 Jan 2024. The latest is DR-4907-OR (Severe Storms, Straight-Line Winds, Flooding, Landslides, and Mudslides), declared 7 Apr 2026.
| Declaration | Kind | Incident | Declared | Individual assistance here |
|---|---|---|---|---|
| DR-4907-OR | Major disaster | Severe Storms, Straight-Line Winds, Flooding, Landslides, and Mudslides | 7 Apr 2026 | No |
| DR-4768-OR | Major disaster | Severe Winter Storms, Straight-Line Winds, Landslides, and Mudslides | 13 Apr 2024 | No |
All FEMA declarations in Oregon, with estimated apply-by dates · Open FEMA deadlines
This product uses the Federal Emergency Management Agency's OpenFEMA API, but is not endorsed by FEMA. The Federal Government or FEMA cannot vouch for the data or analyses derived from these data after the data have been retrieved from the Agency's website(s). Dataset: Disaster Declarations Summaries - v2.
How to read these ratings
- Ratings run in five steps: very low, relatively low, relatively moderate, relatively high and very high. They compare a county with every other US county; they are not a measure of danger on their own.
- Scores run from 0 to 100 and are national percentiles. The bar shows the score: a score of 80 means a higher value than 80% of US counties.
- Overall risk combines the expected annual loss with social vulnerability and community resilience.
- Expected annual loss is the average yearly loss to buildings, people and agriculture the model expects from all 18 hazards.
- Social vulnerability describes how hard it may be for people to prepare for and recover from a disaster. Higher is worse.
- Community resilience describes a community's ability to prepare, adapt and recover. Higher is better.
- "Not applicable" means FEMA does not model that hazard there (for example, hurricanes far inland).
About this data
Source: FEMA National Risk Index, version 1.20, released December 2025, published by the Federal Emergency Management Agency (US public domain). About the National Risk Index. The index is a model of relative risk built from historical hazard records, what is exposed and community factors. It is not a forecast, it does not describe any single property, and it is not insurance or financial advice. For decisions about a specific address, check FEMA's flood maps and your local emergency management office.
Questions
What is the natural disaster risk in Yamhill County, Oregon?
FEMA's National Risk Index rates the overall risk in Yamhill County as relatively moderate, with a score of 82.9 out of 100 (higher than 82% of US counties). That is a comparison with other US counties, not a forecast.
What are the biggest natural hazards in Yamhill County?
The hazards rated highest for Yamhill County are earthquake (relatively moderate), heat wave (relatively moderate), landslide (relatively moderate).
What is the flood risk in Yamhill County?
FEMA rates inland (river and rain) flooding risk in Yamhill County as relatively moderate. For a specific property, check the FEMA flood map and your local floodplain office.
Has Yamhill County had a FEMA disaster declaration?
Yes. Yamhill County has been named in 2 FEMA declarations since 1 Jan 2024. The latest is DR-4907-OR (Severe Storms, Straight-Line Winds, Flooding, Landslides, and Mudslides), declared 7 Apr 2026.
Is Yamhill County in a drought?
Yes. On the U.S. Drought Monitor map valid 13 October 2026, 15.16% of Yamhill County is in D1 Moderate Drought. Some of it has been at D1 or worse for 23 weeks in a row.
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