Jefferson County
Florida — Natural Disaster Risk Assessment
Very LowComposite Risk Score
National percentile: 39th
Jefferson County faces very low composite natural disaster risk (NRI Risk Index score 39.0, 39th national percentile), driven primarily by hurricane and wildfire exposure. Expected annual loss across all 18 hazard types is $7M.
Source: FEMA National Risk Index v1.20 · Updated December 2025
Top Hazards
All 18 Hazard Risks
| Hurricane | Medium | 0.26 / yr | $3M |
| Wildfire | Low | 0.00 / yr | $114K |
| Cold Wave | Low | 1.49 / yr | $865K |
| Tornado | Low | 0.32 / yr | $947K |
| Lightning | Low | 79.23 / yr | $160K |
| Heat Wave | Low | 6.40 / yr | $172K |
| Coastal Flood | Very Low | 3.76 / yr | $9K |
| Earthquake | Very Low | 0.00 / yr | $50K |
| Drought | Very Low | 18.80 / yr | $15K |
| Riverine Flood | Very Low | 0.39 / yr | $2M |
| Strong Wind | Low | 1.28 / yr | $90K |
| Landslide | Very Low | 0.08 / yr | $37 |
| Winter Weather | Very Low | 0.28 / yr | $5K |
| Hail | Very Low | 0.95 / yr | $15K |
| Avalanche | Very Low | 0.00 / yr | $0 |
| Ice Storm | 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 Jefferson County?
Jefferson County has a composite FEMA National Risk Index score of 39.0 out of 100, placing it in the Very Low category and the 39th national percentile. This combines Expected Annual Loss, Social Vulnerability, and Community Resilience across 18 hazard types.
What are the top natural hazards in Jefferson County?
The three highest-rated hazards are Hurricane (Medium, $3M EAL), Wildfire (Low, $114K EAL), Cold Wave (Low, $865K EAL). These account for most of the county's expected annual losses.
How does Jefferson County compare to other Florida counties?
Jefferson County ranks #60 of 67 Florida counties for overall natural disaster risk, with a very 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. Jefferson County's $7M EAL is a statistical average, not a guarantee for any specific year or address.