Nassau County, Florida: hazard risk
FEMA rates Nassau County's overall risk Relatively Low (score 59.3 of 100, higher than 59% of rated U.S. counties). Its storm record holds 587 events since 1950.
FEMA's rating for each hazard
These are FEMA's county-wide model ratings and this county's storm record. They are not an assessment of any property, address or building, and not insurance advice: a property's risk depends on its own elevation, construction and location.
FEMA gives each hazard its own rating, and a rating does not follow the score from one hazard to the next: a hazard with a higher score can carry a lower rating than another. The table sorts by FEMA's rating, then by score (0 to 100, the county against every other county for that hazard).
| Hazard | Risk rating | Score | Expected annual loss |
|---|---|---|---|
| Hurricane | Relatively Moderate | 88.4 | $6.8M |
| Coastal Flooding | Relatively Moderate | 75.8 | $2.0M |
| Lightning | Relatively Moderate | 71.5 | $615K |
| Wildfire | Relatively Low | 86.5 | $968K |
| Heat Wave | Relatively Low | 71.8 | $1.2M |
| Earthquake | Relatively Low | 62.8 | $626K |
| Riverine Flooding | Relatively Low | 59.0 | $10M |
| Tornado | Relatively Low | 53.6 | $1.6M |
| Ice Storm | Relatively Low | 53.3 | $115K |
| Strong Wind | Relatively Low | 18.6 | $192K |
| Landslide | Very Low | 24.2 | $206 |
| Hail | Very Low | 21.8 | $92K |
| Drought | Very Low | 16.3 | $1K |
| Cold Wave | Very Low | 12.0 | $126K |
| Winter Weather | Very Low | 7.6 | $7K |
Source: FEMA National Risk Index, December 2025 release. A model of future loss, not a count of past events. FEMA's National Risk Index map.
What the record holds
| Hazard | Records | Deaths | Damage | Rank in state | Rank in U.S. |
|---|---|---|---|---|---|
| Severe thunderstorm wind | 267 | 0 | $486K | 13th of 67 | 761st of 3,080 |
| Hail | 96 | 0 | – | 16th of 67 | 1498th of 3,080 |
| Heavy rain | 47 | 0 | – | 10th of 67 | 181st of 3,080 |
| Floods | 43 | 0 | $3.8M | 19th of 67 | 1386th of 3,080 |
| Tornadoes | 31 | 0 | $3.8M | 45th of 67 | 1027th of 3,080 |
| Rip currents and high surf | 26 | 10 | – | 11th of 67 | 47th of 2,080 |
| Hurricanes and tropical storms | 24 | 1 | $17M | 31st of 67 | 192nd of 1,849 |
| Wildfires | 17 | 0 | – | 6th of 67 | 95th of 2,972 |
| Drought | 10 | 0 | – | 33rd of 67 | 2038th of 3,063 |
| Lightning | 8 | 0 | $499K | 40th of 67 | 664th of 3,080 |
| Winter storms | 5 | 0 | $422K | 7th of 67 | 2946th of 3,077 |
| High wind and dust storms | 1 | 0 | $4K | 53rd of 67 | 2915th of 3,080 |
Source: NOAA NCEI Storm Events Database, 1950 to 2026-06-30; damage in 2025 dollars. Search the record at NCEI.
The full Nassau County record: every hazard by year and month, the deadliest events and FEMA's declarations.