Oregon Natural Disaster Risk by County
Of Oregon's 36 counties, 0 have a Very High natural-hazard risk rating in FEMA's National Risk Index (v1.20, December 2025); the highest is Multnomah County (score 98.5 of 100), and expected losses across the state total $2.5 billion a year.
OpenFEMA lists 172 federal disaster, emergency and fire management declarations for Oregon since 1955 (not counting COVID-19); the latest is FM-5670-OR, Fielder Mountain Fire, declared 14 August 2026.
Live weather alerts for Oregon Latest FEMA declarations All official warnings
Most exposed counties, hazard by hazard
Top 10 by FEMA hazard risk scoreTornado 36 rated
| # | County | Rating | Loss a year |
|---|---|---|---|
| 1 | Washington County | Relatively Low | $1.8 million |
| 2 | Multnomah County | Relatively Low | $1.2 million |
| 3 | Clackamas County | Relatively Low | $1.0 million |
| 4 | Marion County | Very Low | $268,184 |
| 5 | Lane County | Very Low | $248,495 |
| 6 | Yamhill County | Very Low | $237,137 |
| 7 | Linn County | Very Low | $151,992 |
| 8 | Columbia County | Very Low | $129,801 |
| 9 | Umatilla County | Very Low | $91,164 |
| 10 | Benton County | Very Low | $124,964 |
Inland flooding 36 rated
| # | County | Rating | Loss a year |
|---|---|---|---|
| 1 | Lane County | Relatively High | $117 million |
| 2 | Multnomah County | Relatively High | $91 million |
| 3 | Douglas County | Relatively High | $56 million |
| 4 | Washington County | Relatively High | $81 million |
| 5 | Clackamas County | Relatively High | $77 million |
| 6 | Jackson County | Relatively Moderate | $54 million |
| 7 | Marion County | Relatively Moderate | $37 million |
| 8 | Josephine County | Relatively Moderate | $32 million |
| 9 | Deschutes County | Relatively Moderate | $42 million |
| 10 | Lincoln County | Relatively Moderate | $20 million |
Coastal flooding 10 rated
| # | County | Rating | Loss a year |
|---|---|---|---|
| 1 | Clatsop County | Very High | $12 million |
| 2 | Coos County | Relatively High | $3.8 million |
| 3 | Lincoln County | Relatively Moderate | $901,491 |
| 4 | Tillamook County | Relatively Moderate | $766,121 |
| 5 | Douglas County | Relatively Moderate | $489,640 |
| 6 | Lane County | Relatively Low | $288,412 |
| 7 | Columbia County | Relatively Low | $158,588 |
| 8 | Curry County | Relatively Low | $52,434 |
| 9 | Multnomah County | Relatively Low | $42,828 |
| 10 | Clackamas County | Very Low | $200 |
Wildfire 36 rated
| # | County | Rating | Loss a year |
|---|---|---|---|
| 1 | Josephine County | Relatively High | $23 million |
| 2 | Jackson County | Relatively High | $25 million |
| 3 | Wasco County | Relatively High | $15 million |
| 4 | Deschutes County | Relatively High | $13 million |
| 5 | Douglas County | Relatively High | $8.2 million |
| 6 | Umatilla County | Relatively Moderate | $4.3 million |
| 7 | Baker County | Relatively Moderate | $3.9 million |
| 8 | Harney County | Relatively Moderate | $3.5 million |
| 9 | Crook County | Relatively Moderate | $3.2 million |
| 10 | Jefferson County | Relatively Moderate | $3.7 million |
Earthquake 36 rated
| # | County | Rating | Loss a year |
|---|---|---|---|
| 1 | Multnomah County | Relatively High | $326 million |
| 2 | Marion County | Relatively High | $122 million |
| 3 | Washington County | Relatively High | $163 million |
| 4 | Lane County | Relatively High | $95 million |
| 5 | Clackamas County | Relatively High | $109 million |
| 6 | Coos County | Relatively High | $52 million |
| 7 | Lincoln County | Relatively Moderate | $31 million |
| 8 | Linn County | Relatively Moderate | $38 million |
| 9 | Jackson County | Relatively Moderate | $35 million |
| 10 | Douglas County | Relatively Moderate | $26 million |
Every Oregon county, highest overall risk first
36| # | County | Overall risk | Score | Loss a year | Top hazard | Declarations | Tornadoes |
|---|---|---|---|---|---|---|---|
| 1 | Multnomah County | Relatively High | 98.5 | $440 million | Earthquake | 10 | 5 |
| 2 | Lane County | Relatively High | 96.4 | $221 million | Earthquake | 22 | 7 |
| 3 | Washington County | Relatively High | 96.0 | $270 million | Earthquake | 15 | 7 |
| 4 | Marion County | Relatively High | 95.5 | $171 million | Earthquake | 13 | 11 |
| 5 | Clatsop County | Relatively High | 95.1 | $145 million | Tsunami | 17 | 5 |
| 6 | Clackamas County | Relatively High | 94.9 | $219 million | Earthquake | 21 | 8 |
| 7 | Douglas County | Relatively Moderate | 92.9 | $94 million | Wildfire | 25 | 1 |
| 8 | Jackson County | Relatively Moderate | 92.5 | $122 million | Wildfire | 19 | 0 |
| 9 | Coos County | Relatively Moderate | 91.9 | $90 million | Earthquake | 18 | 0 |
| 10 | Josephine County | Relatively Moderate | 90.2 | $70 million | Wildfire | 23 | 0 |
| 11 | Lincoln County | Relatively Moderate | 89.9 | $59 million | Earthquake | 22 | 4 |
| 12 | Linn County | Relatively Moderate | 88.1 | $71 million | Earthquake | 19 | 5 |
| 13 | Curry County | Relatively Moderate | 86.5 | $44 million | Earthquake | 15 | 3 |
| 14 | Deschutes County | Relatively Moderate | 84.9 | $66 million | Wildfire | 18 | 6 |
| 15 | Benton County | Relatively Moderate | 84.4 | $64 million | Landslide | 13 | 2 |
| 16 | Yamhill County | Relatively Moderate | 82.9 | $56 million | Earthquake | 17 | 4 |
| 17 | Umatilla County | Relatively Moderate | 82.3 | $40 million | Wildfire | 13 | 9 |
| 18 | Tillamook County | Relatively Moderate | 81.3 | $39 million | Earthquake | 23 | 7 |
| 19 | Klamath County | Relatively Low | 77.9 | $33 million | Earthquake | 16 | 5 |
| 20 | Polk County | Relatively Low | 72.8 | $38 million | Earthquake | 13 | 3 |
| 21 | Columbia County | Relatively Low | 70.7 | $34 million | Earthquake | 15 | 3 |
| 22 | Wasco County | Relatively Low | 67.8 | $29 million | Wildfire | 24 | 1 |
| 23 | Baker County | Relatively Low | 48.2 | $12 million | Wildfire | 10 | 5 |
| 24 | Union County | Relatively Low | 43.5 | $12 million | Wildfire | 8 | 1 |
| 25 | Malheur County | Very Low | 34.8 | $10 million | Wildfire | 5 | 6 |
| 26 | Wallowa County | Very Low | 34.0 | $7.9 million | Wildfire | 9 | 7 |
| 27 | Crook County | Very Low | 33.6 | $9.7 million | Wildfire | 10 | 0 |
| 28 | Hood River County | Very Low | 32.1 | $15 million | Volcanic activity | 15 | 0 |
| 29 | Grant County | Very Low | 32.1 | $7.5 million | Wildfire | 13 | 3 |
| 30 | Jefferson County | Very Low | 29.9 | $10 million | Wildfire | 20 | 3 |
| 31 | Morrow County | Very Low | 26.4 | $9.4 million | Wildfire | 8 | 3 |
| 32 | Harney County | Very Low | 23.7 | $6.5 million | Wildfire | 6 | 7 |
| 33 | Lake County | Very Low | 19.1 | $6.0 million | Wildfire | 10 | 2 |
| 34 | Wheeler County | Very Low | 7.2 | $2.8 million | Wildfire | 12 | 1 |
| 35 | Sherman County | Very Low | 2.9 | $2.6 million | Wildfire | 8 | 0 |
| 36 | Gilliam County | Very Low | 2.7 | $1.9 million | Wildfire | 10 | 1 |
Score: FEMA's national percentile (higher = more risk). Declarations: federal declarations that named the county since 1953, not counting COVID-19. Tornadoes: NOAA SPC tornadoes that touched the county, 1950–2025.
Latest federal declarations in Oregon
Other states and territories
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What this page shows, and what it misses
FEMA's National Risk Index compares every US county with every other for 18 natural hazards, combining expected losses with social vulnerability and community resilience. It is a planning-level estimate for nationwide comparison, not a flood-zone map and not the risk to any one property — for flood zones use FEMA's Flood Map Service Center ↗. Federal declarations exclude state declarations and SBA or USDA designations.
Federal Emergency Management Agency (FEMA), National Risk Index Dataset: National Risk Index Counties - v1.20.0 (December 2025). Retrieved from https://services.arcgis.com/XG15cJAlne2vxtgt/ArcGIS/rest/services/National_Risk_Index_Counties/FeatureServer/0/query on November 2, 2026, 1:20 PM EST. This product uses the Federal Emergency Management Agency’s National Risk Index dataset API or downloadable datasets 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).
Federal Emergency Management Agency (FEMA), OpenFEMA Dataset: Disaster Declarations Summaries - v2, retrieved from https://www.fema.gov/api/open/v2/DisasterDeclarationsSummaries on November 2, 2026, 1:21 PM EST. 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).
Tornado records: NOAA/NWS Storm Prediction Center, Severe Weather Database, tornadoes 1950–2025 (https://www.spc.noaa.gov/wcm/data/1950-2025_actual_tornadoes.csv, downloaded 2 November 2026). Public domain; not endorsed by NOAA. Compiled by Global Incident Tracker.
Questions about Oregon
Which county in Oregon has the highest natural disaster risk?
Of Oregon's 36 counties, 0 have a Very High natural-hazard risk rating in FEMA's National Risk Index (v1.20, December 2025); the highest is Multnomah County (score 98.5 of 100), and expected losses across the state total $2.5 billion a year.
Which Oregon counties are most at risk from tornadoes?
By FEMA's National Risk Index tornado risk score: Washington County, Multnomah County, Clackamas County. These are planning-level estimates for whole counties, not maps of individual properties.
Which Oregon counties are most at risk from inland flooding?
By FEMA's National Risk Index inland flooding risk score: Lane County, Multnomah County, Douglas County. These are planning-level estimates for whole counties, not maps of individual properties.
How many FEMA disaster declarations has Oregon had?
OpenFEMA lists 172 federal disaster, emergency and fire management declarations for Oregon since 1955 (not counting COVID-19); the latest is FM-5670-OR, Fielder Mountain Fire, declared 14 August 2026.