Wilson County
Tennessee — Natural Disaster Risk Assessment
LowComposite Risk Score
National percentile: 80th
Wilson County faces low composite natural disaster risk (NRI Risk Index score 80.0, 80th national percentile), driven primarily by cold wave and winter weather exposure. Expected annual loss across all 18 hazard types is $60M.
Source: FEMA National Risk Index v1.20 · Updated December 2025
Top Hazards
All 18 Hazard Risks
| Cold Wave | Medium | 1.16 / yr | $9M |
| Winter Weather | High | 5.63 / yr | $545K |
| Earthquake | Low | 0.00 / yr | $6M |
| Tornado | Medium | 0.45 / yr | $8M |
| Riverine Flood | Medium | 2.61 / yr | $31M |
| Hail | Medium | 3.40 / yr | $1M |
| Ice Storm | Medium | 0.68 / yr | $629K |
| Lightning | Medium | 58.90 / yr | $847K |
| Strong Wind | Medium | 6.13 / yr | $1M |
| Heat Wave | Low | 4.53 / yr | $906K |
| Hurricane | Very Low | 0.02 / yr | $39K |
| Wildfire | Very Low | 0.00 / yr | $31K |
| Drought | Low | 10.24 / yr | $41K |
| Landslide | Very Low | 0.39 / yr | $427 |
| 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 Wilson County?
Wilson County has a composite FEMA National Risk Index score of 80.0 out of 100, placing it in the Low category and the 80th national percentile. This combines Expected Annual Loss, Social Vulnerability, and Community Resilience across 18 hazard types.
What are the top natural hazards in Wilson County?
The three highest-rated hazards are Cold Wave (Medium, $9M EAL), Winter Weather (High, $545K EAL), Earthquake (Low, $6M EAL). These account for most of the county's expected annual losses.
How does Wilson County compare to other Tennessee counties?
Wilson County ranks #15 of 95 Tennessee 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. Wilson County's $60M EAL is a statistical average, not a guarantee for any specific year or address.