Jefferson Davis County, MS
FEMA National Risk Index scores, disaster declarations & hazard data
Jefferson Davis County has experienced 33 federally declared disasters since 1969, most recently Severe Winter Storm in 2026. Its overall natural hazard risk is rated Very Low — among the lowest-risk counties in the country.
Jefferson Davis County's highest-rated hazards are hurricane, hail, and drought, with its top risk rated "Relatively Low" by FEMA's National Risk Index. Recorded storm events have increased 15% over the past five years compared to the prior five-year period. Community vulnerability is elevated (87th percentile nationally), suggesting residents may face greater difficulty recovering from major disasters.
Past disasters & FEMA designations
A federal disaster declaration officially designates a county for FEMA disaster assistance. Jefferson Davis County has been designated in 33 declarations since 1969, covering 8 disaster types including hurricane (16), severe storm (8), flood (2).
| Year | Type | Event name |
|---|---|---|
| 2026 | Winter Storm | Severe Winter Storm |
| 2026 | Winter Storm | Severe Winter Storm |
| 2025 | Severe Storm | Severe Storms, Straight-Line Winds, Tornadoes, And Flooding |
| 2023 | Severe Storm | Severe Storms, Straight-Line Winds, And Tornadoes. |
| 2022 | Hurricane | Hurricane Ida |
| 2021 | Severe Ice Storm | Severe Winter Storms |
| 2021 | Hurricane | Hurricane Ida |
| 2021 | Hurricane | Hurricane Delta |
| 2020 | Severe Storm | Severe Storms, Tornadoes, Straight-Line Winds, And Flooding |
| 2020 | Severe Storm | Severe Storms, Tornadoes, Straight-Line Winds, And Flooding |
Showing the 10 most recent of 33 total declarations since 1969.
Source: FEMA OpenFEMA Disaster Declarations Summaries. A single disaster can produce more than one record per county. Data current through September 2026.
Risk by hazard type
| Hazard | Risk rating | Risk score | Recorded events | Deaths | Prop. damage |
|---|---|---|---|---|---|
| Wildfire | Very Low | 56.7 | 0 | 0 | — |
| Inland Flooding | Very Low | 23.8 | 16 | 0 | $357K |
| Coastal Flooding | Not Applicable | — | 0 | 0 | — |
| Earthquake | Very Low | 38.2 | — | — | — |
| Heat Wave | Relatively Low | 56.2 | 0 | 0 | — |
| Tornado | Relatively Low | 53.9 | 34 | 6 | $27.5M |
| Hurricane | Relatively Low | 78.4 | 0 | 0 | — |
| Hail | Relatively Low | 63.8 | 14 | 0 | $350K |
| Strong Wind | Relatively Low | 43 | 0 | 0 | — |
| Winter Weather | Very Low | 23.2 | 0 | 0 | — |
| Ice Storm | Relatively Low | 43 | — | — | — |
| Cold Wave | Very Low | 17.5 | — | — | — |
| Lightning | Relatively Low | 37.9 | 1 | 0 | $25K |
| Drought | Relatively Low | 58.4 | 0 | 0 | — |
| Landslide | Very Low | 42.8 | 0 | 0 | — |
| Avalanche | Not Applicable | — | — | — | — |
| Tsunami | Not Applicable | — | — | — | — |
| Volcanic Activity | Not Applicable | — | — | — | — |
Scores are 0–100 percentiles relative to all US counties — higher means more exposed, not that a disaster is likely this year. Event counts: NOAA Storm Events 2016–2026; earthquake counts from USGS ComCat (M3.0+, 1996–2026). See the methodology page for details.
Community vulnerability
Jefferson Davis County ranks in the 87th percentile (High) for community vulnerability — a measure of how hard disaster impacts tend to hit residents. Higher vulnerability means more displacement, worse health outcomes, and slower recovery after a disaster.
| SVI theme | Percentile | Vulnerability level |
|---|---|---|
| Overall | 87th | High |
| Socioeconomic status | 97th | High |
| Household characteristics | 68th | Moderate |
| Racial & ethnic minority status | 93rd | High |
| Housing type & transportation | 49th | Low |
Source: CDC/ATSDR Social Vulnerability Index 2022. Percentiles compare counties nationally — higher means more vulnerable relative to other counties. See CDC SVI for full methodology.
Future risk outlook
| Wildfire metric | National percentile | Level |
|---|---|---|
| Burn probability | 79th | Relatively High |
| Risk to homes | 75th | Relatively High |
| Buildings in direct exposure zone | 93.7% | — |
NOAA tracked 56 weather events in this county over 2016–2025: 26 in 2016–20 vs 30 in 2021–25 (+15% — frequency increasing).
Wildfire: USDA Forest Service Wildfire Risk to Communities (RDS-2020-0016-2) — modeled values, not annual forecasts. See wildfirerisk.org. Inland flood and heat projections pending data availability; coastal sea-level projections are available for select coastal counties below — see the data page.
Nearby counties
Frequently asked questions
What natural hazards pose the greatest risk in Jefferson Davis County?
According to the FEMA National Risk Index, the highest-risk hazards in Jefferson Davis County, Mississippi are hurricane, hail, and drought. The county's overall natural hazard risk is rated Very Low — among the lowest-risk counties in the country.
Has Jefferson Davis County received federal disaster declarations?
Yes. Jefferson Davis County has received 33 federal disaster declarations since 1969, including declarations in 2026. The most common disaster type on record is hurricane (16 declarations).
Has Jefferson Davis County had any FEMA disaster declarations in 2024, 2025, or 2026?
Yes. Recent federal disaster declarations for Jefferson Davis County include Severe Winter Storm (2026), Severe Winter Storm (2026), Severe Storms, Straight-Line Winds, Tornadoes, And Flooding (2025). See the declarations table above for the full history since 1969.
How does Jefferson Davis County's natural hazard risk compare to nearby counties?
Among neighboring counties, Lamar County, MS has the highest overall natural hazard risk (Relatively Low) and Lawrence County, MS has the lowest (Very Low). Jefferson Davis County is rated Very Low overall.
How is Jefferson Davis County's composite disaster risk index calculated?
Jefferson Davis County's composite disaster risk index — officially FEMA's National Risk Index (NRI) — scores every US county on a 0–100 percentile scale across 18 natural hazard types, factoring in expected annual loss, social vulnerability, and community resilience. Jefferson Davis County's composite score of 23 means its overall natural hazard risk is higher than 23% of US counties.