Clearwater County
Idaho — Natural Disaster Risk Assessment
LowComposite Risk Score
National percentile: 47th
Clearwater County faces low composite natural disaster risk (NRI Risk Index score 46.9, 47th national percentile), driven primarily by landslide and wildfire exposure. Expected annual loss across all 18 hazard types is $10M.
Source: FEMA National Risk Index v1.20 · Updated December 2025
Top Hazards
All 18 Hazard Risks
| Landslide | Medium | 1.86 / yr | $239K |
| Wildfire | Medium | 0.01 / yr | $4M |
| Avalanche | Medium | 0.03 / yr | $457K |
| Riverine Flood | Low | 0.29 / yr | $5M |
| Winter Weather | Low | 40.16 / yr | $25K |
| Heat Wave | Very Low | 2.48 / yr | $80K |
| Earthquake | Very Low | 0.00 / yr | $25K |
| Drought | Very Low | 30.47 / yr | $53 |
| Cold Wave | Very Low | 0.42 / yr | $48K |
| Ice Storm | Very Low | 0.03 / yr | $3K |
| Hail | Very Low | 0.30 / yr | $14K |
| Lightning | Very Low | 18.58 / yr | $10K |
| Strong Wind | Very Low | 0.20 / yr | $19K |
| Tornado | Very Low | 0.04 / yr | $7K |
| 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 Clearwater County?
Clearwater County has a composite FEMA National Risk Index score of 46.9 out of 100, placing it in the Low category and the 47th national percentile. This combines Expected Annual Loss, Social Vulnerability, and Community Resilience across 18 hazard types.
What are the top natural hazards in Clearwater County?
The three highest-rated hazards are Landslide (Medium, $239K EAL), Wildfire (Medium, $4M EAL), Avalanche (Medium, $457K EAL). These account for most of the county's expected annual losses.
How does Clearwater County compare to other Idaho counties?
Clearwater County ranks #16 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. Clearwater County's $10M EAL is a statistical average, not a guarantee for any specific year or address.