Grays Harbor County
Washington — Natural Disaster Risk Assessment
HighComposite Risk Score
National percentile: 97th
Grays Harbor County faces high composite natural disaster risk (NRI Risk Index score 97.0, 97th national percentile), driven primarily by tsunami and coastal flood exposure. Expected annual loss across all 18 hazard types is $212M.
Source: FEMA National Risk Index v1.20 · Updated December 2025
Top Hazards
All 18 Hazard Risks
| Tsunami | Very High | 0.13 / yr | $121M |
| Coastal Flood | Very High | 10.13 / yr | $24M |
| Earthquake | High | 0.02 / yr | $47M |
| Landslide | Medium | 11.54 / yr | $113K |
| Ice Storm | High | 0.56 / yr | $604K |
| Riverine Flood | Medium | 0.21 / yr | $19M |
| Heat Wave | Low | 1.98 / yr | $451K |
| Winter Weather | Low | 6.79 / yr | $36K |
| Avalanche | Very Low | 0.01 / yr | $132 |
| Wildfire | Very Low | 0.00 / yr | $15K |
| Lightning | Very Low | 5.13 / yr | $39K |
| Tornado | Very Low | 0.07 / yr | $90K |
| Drought | Very Low | 1.39 / yr | $33 |
| Strong Wind | Very Low | 0.01 / yr | $42K |
| Cold Wave | Very Low | 0.00 / yr | $1 |
| Hail | Very Low | 0.01 / yr | $3K |
| Hurricane | Very Low | 0.00 / yr | $0 |
| Volcanic Activity | Very Low | 0.00 / yr | $0 |
Frequently Asked Questions
What is the overall natural disaster risk for Grays Harbor County?
Grays Harbor County has a composite FEMA National Risk Index score of 97.0 out of 100, placing it in the High category and the 97th national percentile. This combines Expected Annual Loss, Social Vulnerability, and Community Resilience across 18 hazard types.
What are the top natural hazards in Grays Harbor County?
The three highest-rated hazards are Tsunami (Very High, $121M EAL), Coastal Flood (Very High, $24M EAL), Earthquake (High, $47M EAL). These account for most of the county's expected annual losses.
How does Grays Harbor County compare to other Washington counties?
Grays Harbor County ranks #4 of 39 Washington 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. Grays Harbor County's $212M EAL is a statistical average, not a guarantee for any specific year or address.