Grayson County
Kentucky — Natural Disaster Risk Assessment
LowComposite Risk Score
National percentile: 45th
Grayson County faces low composite natural disaster risk (NRI Risk Index score 45.3, 45th national percentile), driven primarily by hail and ice storm exposure. Expected annual loss across all 18 hazard types is $11M.
Source: FEMA National Risk Index v1.20 · Updated December 2025
Top Hazards
All 18 Hazard Risks
| Hail | Medium | 3.13 / yr | $1M |
| Ice Storm | Medium | 1.09 / yr | $323K |
| Strong Wind | Medium | 6.00 / yr | $1M |
| Tornado | Medium | 0.35 / yr | $2M |
| Earthquake | Low | 0.00 / yr | $644K |
| Heat Wave | Low | 5.95 / yr | $368K |
| Cold Wave | Low | 0.95 / yr | $736K |
| Riverine Flood | Low | 1.07 / yr | $5M |
| Landslide | Very Low | 0.84 / yr | $954 |
| Winter Weather | Low | 7.84 / yr | $47K |
| Lightning | Low | 53.85 / yr | $165K |
| Hurricane | Very Low | 0.01 / yr | $17K |
| Drought | Very Low | 1.55 / yr | $17K |
| Wildfire | Very Low | 0.00 / yr | $3K |
| Avalanche | Very Low | 0.00 / yr | $0 |
| Coastal Flood | 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 Grayson County?
Grayson County has a composite FEMA National Risk Index score of 45.3 out of 100, placing it in the Low category and the 45th national percentile. This combines Expected Annual Loss, Social Vulnerability, and Community Resilience across 18 hazard types.
What are the top natural hazards in Grayson County?
The three highest-rated hazards are Hail (Medium, $1M EAL), Ice Storm (Medium, $323K EAL), Strong Wind (Medium, $1M EAL). These account for most of the county's expected annual losses.
How does Grayson County compare to other Kentucky counties?
Grayson County ranks #50 of 120 Kentucky 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. Grayson County's $11M EAL is a statistical average, not a guarantee for any specific year or address.