Pasco County
Florida — Natural Disaster Risk Assessment
HighComposite Risk Score
National percentile: 96th
Pasco County faces high composite natural disaster risk (NRI Risk Index score 96.0, 96th national percentile), driven primarily by tornado and hurricane exposure. Expected annual loss across all 18 hazard types is $199M.
Source: FEMA National Risk Index v1.20 · Updated December 2025
Top Hazards
All 18 Hazard Risks
| Tornado | High | 0.91 / yr | $28M |
| Hurricane | Very High | 0.26 / yr | $78M |
| Lightning | Very High | 94.43 / yr | $2M |
| Riverine Flood | High | 1.75 / yr | $76M |
| Wildfire | Medium | 0.01 / yr | $4M |
| Coastal Flood | High | 3.69 / yr | $6M |
| Heat Wave | Medium | 2.86 / yr | $3M |
| Strong Wind | Medium | 0.94 / yr | $1M |
| Cold Wave | Low | 4.21 / yr | $1M |
| Earthquake | Very Low | 0.00 / yr | $203K |
| Landslide | Very Low | 0.08 / yr | $922 |
| Hail | Very Low | 1.92 / yr | $116K |
| Drought | Very Low | 17.00 / yr | $3K |
| 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 |
| Winter Weather | Very Low | 0.00 / yr | $0 |
Frequently Asked Questions
What is the overall natural disaster risk for Pasco County?
Pasco County has a composite FEMA National Risk Index score of 96.0 out of 100, placing it in the High category and the 96th national percentile. This combines Expected Annual Loss, Social Vulnerability, and Community Resilience across 18 hazard types.
What are the top natural hazards in Pasco County?
The three highest-rated hazards are Tornado (High, $28M EAL), Hurricane (Very High, $78M EAL), Lightning (Very High, $2M EAL). These account for most of the county's expected annual losses.
How does Pasco County compare to other Florida counties?
Pasco County ranks #16 of 67 Florida 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. Pasco County's $199M EAL is a statistical average, not a guarantee for any specific year or address.