Clatsop County
Oregon — Natural Disaster Risk Assessment
HighComposite Risk Score
National percentile: 95th
Clatsop County faces high composite natural disaster risk (NRI Risk Index score 95.1, 95th national percentile), driven primarily by tsunami and earthquake exposure. Expected annual loss across all 18 hazard types is $145M.
Source: FEMA National Risk Index v1.20 · Updated December 2025
Top Hazards
All 18 Hazard Risks
| Tsunami | Very High | 0.15 / yr | $100M |
| Earthquake | Medium | 0.02 / yr | $21M |
| Coastal Flood | Very High | 4.44 / yr | $12M |
| Landslide | Medium | 3.82 / yr | $41K |
| Volcanic Activity | Very Low | 0.01 / yr | $987 |
| Riverine Flood | Low | 0.21 / yr | $12M |
| Wildfire | Very Low | 0.00 / yr | $28K |
| Heat Wave | Low | 3.42 / yr | $209K |
| Ice Storm | Low | 0.71 / yr | $47K |
| Strong Wind | Low | 0.04 / yr | $163K |
| Cold Wave | Very Low | 0.13 / yr | $192K |
| Avalanche | Very Low | 0.01 / yr | $23 |
| Lightning | Very Low | 5.20 / yr | $50K |
| Winter Weather | Very Low | 11.80 / yr | $13K |
| Drought | Very Low | 0.44 / yr | $0 |
| Tornado | Very Low | 0.07 / yr | $77K |
| Hail | Very Low | 0.03 / yr | $8K |
| Hurricane | Very Low | 0.00 / yr | $0 |
Frequently Asked Questions
What is the overall natural disaster risk for Clatsop County?
Clatsop County has a composite FEMA National Risk Index score of 95.1 out of 100, placing it in the High category and the 95th national percentile. This combines Expected Annual Loss, Social Vulnerability, and Community Resilience across 18 hazard types.
What are the top natural hazards in Clatsop County?
The three highest-rated hazards are Tsunami (Very High, $100M EAL), Earthquake (Medium, $21M EAL), Coastal Flood (Very High, $12M EAL). These account for most of the county's expected annual losses.
How does Clatsop County compare to other Oregon counties?
Clatsop County ranks #5 of 36 Oregon counties for overall natural disaster risk, with a high rating.
What does Expected Annual Loss (EAL) mean?
EAL is FEMA's estimate of average annual dollar losses from natural hazards, calculated from historical event data and exposure models. Clatsop County's $145M EAL is a statistical average, not a guarantee for any specific year or address.