Wahkiakum County
Washington — Natural Disaster Risk Assessment
Very LowComposite Risk Score
National percentile: 19th
Wahkiakum County faces very low composite natural disaster risk (NRI Risk Index score 19.3, 19th national percentile), driven primarily by landslide and earthquake exposure. Expected annual loss across all 18 hazard types is $6M.
Source: FEMA National Risk Index v1.20 · Updated December 2025
Top Hazards
All 18 Hazard Risks
| Landslide | Low | 1.80 / yr | $14K |
| Earthquake | Low | 0.02 / yr | $977K |
| Coastal Flood | Medium | 4.36 / yr | $931K |
| Volcanic Activity | Very Low | 0.01 / yr | $81 |
| Tsunami | Low | 0.13 / yr | $2M |
| Heat Wave | Low | 3.07 / yr | $194K |
| Riverine Flood | Very Low | 1.36 / yr | $2M |
| Ice Storm | Very Low | 0.84 / yr | $9K |
| Wildfire | Very Low | 0.00 / yr | $3K |
| Avalanche | Very Low | 0.01 / yr | $5 |
| Cold Wave | Very Low | 0.05 / yr | $29K |
| Tornado | Very Low | 0.02 / yr | $11K |
| Strong Wind | Very Low | 0.03 / yr | $16K |
| Winter Weather | Very Low | 8.11 / yr | $1K |
| Hail | Very Low | 0.03 / yr | $1K |
| Lightning | Very Low | 5.16 / yr | $2K |
| Drought | Very Low | 0.00 / yr | $0 |
| Hurricane | Very Low | 0.00 / yr | $0 |
Frequently Asked Questions
What is the overall natural disaster risk for Wahkiakum County?
Wahkiakum County has a composite FEMA National Risk Index score of 19.3 out of 100, placing it in the Very Low category and the 19th national percentile. This combines Expected Annual Loss, Social Vulnerability, and Community Resilience across 18 hazard types.
What are the top natural hazards in Wahkiakum County?
The three highest-rated hazards are Landslide (Low, $14K EAL), Earthquake (Low, $977K EAL), Coastal Flood (Medium, $931K EAL). These account for most of the county's expected annual losses.
How does Wahkiakum County compare to other Washington counties?
Wahkiakum County ranks #36 of 39 Washington counties for overall natural disaster risk, with a very low 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. Wahkiakum County's $6M EAL is a statistical average, not a guarantee for any specific year or address.