Jefferson County, Mississippi: hazard risk
FEMA rates Jefferson County's overall risk Very Low (score 11.3 of 100, higher than 11% of rated U.S. counties). Its storm record holds 341 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 |
|---|---|---|---|
| Heat Wave | Relatively Low | 70.5 | $587K |
| Hurricane | Relatively Low | 65.1 | $224K |
| Landslide | Relatively Low | 62.4 | $2K |
| Drought | Relatively Low | 52.4 | $108K |
| Hail | Relatively Low | 47.8 | $151K |
| Ice Storm | Relatively Low | 38.6 | $31K |
| Tornado | Relatively Low | 36.0 | $451K |
| Strong Wind | Relatively Low | 29.0 | $178K |
| Earthquake | Very Low | 29.0 | $42K |
| Wildfire | Very Low | 27.6 | $8K |
| Cold Wave | Very Low | 19.0 | $129K |
| Lightning | Very Low | 18.4 | $39K |
| Riverine Flooding | Very Low | 16.9 | $1.3M |
| Winter Weather | Very Low | 5.1 | $2K |
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 | 154 | 0 | $2.7M | 46th of 82 | 1064th of 3,080 |
| Hail | 69 | 0 | $421K | 53rd of 82 | 1527th of 3,080 |
| Tornadoes | 31 | 0 | $10M | 48th of 82 | 677th of 3,080 |
| Winter storms | 22 | 0 | $2.6M | 48th of 82 | 2494th of 3,077 |
| Floods | 19 | 0 | $12M | 66th of 82 | 1941st of 3,080 |
| Drought | 18 | 0 | $5.9M | 48th of 82 | 1484th of 3,063 |
| Hurricanes and tropical storms | 11 | 0 | $110M | 22nd of 82 | 405th of 1,849 |
| Heat | 8 | 1 | – | 65th of 82 | 1645th of 3,076 |
| High wind and dust storms | 5 | 0 | $19K | 48th of 82 | 2365th of 3,080 |
| Extreme cold | 3 | 1 | $609K | 52nd of 82 | 2421st of 3,076 |
| Lightning | 1 | 0 | $12K | 68th of 82 | 1929th 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 Jefferson County record: every hazard by year and month, the deadliest events and FEMA's declarations.