Shoshone County
Idaho — Natural Disaster Risk Assessment
LowComposite Risk Score
National percentile: 63th
Shoshone County faces low composite natural disaster risk (NRI Risk Index score 62.8, 63th national percentile), driven primarily by landslide and avalanche exposure. Expected annual loss across all 18 hazard types is $20M.
Source: FEMA National Risk Index v1.20 · Updated December 2025
Top Hazards
All 18 Hazard Risks
| Landslide | High | 2.34 / yr | $580K |
| Avalanche | Very High | 0.17 / yr | $4M |
| Riverine Flood | Medium | 0.93 / yr | $15M |
| Wildfire | Low | 0.00 / yr | $149K |
| Winter Weather | Medium | 35.84 / yr | $84K |
| Ice Storm | Low | 0.17 / yr | $94K |
| Earthquake | Very Low | 0.00 / yr | $121K |
| Cold Wave | Low | 0.90 / yr | $471K |
| Heat Wave | Very Low | 2.89 / yr | $123K |
| Drought | Very Low | 33.25 / yr | $1 |
| Lightning | Very Low | 17.29 / yr | $16K |
| Strong Wind | Very Low | 0.20 / yr | $32K |
| Tornado | Very Low | 0.04 / yr | $11K |
| Hail | Very Low | 0.24 / yr | $4K |
| Coastal Flood | Very Low | 0.00 / yr | $0 |
| Hurricane | Very Low | 0.00 / yr | $0 |
| Tsunami | 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 Shoshone County?
Shoshone County has a composite FEMA National Risk Index score of 62.8 out of 100, placing it in the Low category and the 63th national percentile. This combines Expected Annual Loss, Social Vulnerability, and Community Resilience across 18 hazard types.
What are the top natural hazards in Shoshone County?
The three highest-rated hazards are Landslide (High, $580K EAL), Avalanche (Very High, $4M EAL), Riverine Flood (Medium, $15M EAL). These account for most of the county's expected annual losses.
How does Shoshone County compare to other Idaho counties?
Shoshone County ranks #9 of 44 Idaho counties for overall natural disaster risk, with a 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. Shoshone County's $20M EAL is a statistical average, not a guarantee for any specific year or address.