Mohave County
Arizona — Natural Disaster Risk Assessment
HighComposite Risk Score
National percentile: 95th
Mohave County faces high composite natural disaster risk (NRI Risk Index score 94.8, 95th national percentile), driven primarily by wildfire and heat wave exposure. Expected annual loss across all 18 hazard types is $105M.
Source: FEMA National Risk Index v1.20 · Updated December 2025
Top Hazards
All 18 Hazard Risks
| Wildfire | High | 0.01 / yr | $14M |
| Heat Wave | High | 10.35 / yr | $12M |
| Lightning | Very High | 36.89 / yr | $2M |
| Riverine Flood | High | 10.43 / yr | $74M |
| Winter Weather | High | 5.43 / yr | $283K |
| Earthquake | Low | 0.01 / yr | $2M |
| Strong Wind | Medium | 0.26 / yr | $632K |
| Ice Storm | Medium | 0.01 / yr | $129K |
| Avalanche | Low | 0.01 / yr | $2K |
| Landslide | Low | 6.99 / yr | $3K |
| Volcanic Activity | Very Low | 0.00 / yr | $22 |
| Hail | Low | 0.12 / yr | $171K |
| Drought | Very Low | 89.93 / yr | $3K |
| Tornado | Very Low | 0.27 / yr | $6K |
| Cold Wave | Very Low | 0.00 / yr | $0 |
| Coastal Flood | Very Low | 0.00 / yr | $0 |
| Hurricane | Very Low | 0.00 / yr | $0 |
| Tsunami | Very Low | 0.00 / yr | $0 |
Frequently Asked Questions
What is the overall natural disaster risk for Mohave County?
Mohave County has a composite FEMA National Risk Index score of 94.8 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 Mohave County?
The three highest-rated hazards are Wildfire (High, $14M EAL), Heat Wave (High, $12M EAL), Lightning (Very High, $2M EAL). These account for most of the county's expected annual losses.
How does Mohave County compare to other Arizona counties?
Mohave County ranks #3 of 15 Arizona 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. Mohave County's $105M EAL is a statistical average, not a guarantee for any specific year or address.