Marion County, MS
FEMA National Risk Index scores, disaster declarations & hazard data
Marion County has experienced 37 federally declared disasters since 1969, most recently Severe Winter Storm in 2026. Its overall natural hazard risk is rated Relatively Low — lower risk than most US counties.
Marion County's highest-rated hazards are hurricane, hail, and wildfire, with its top risk rated "Relatively Moderate" by FEMA's National Risk Index. Recorded storm events have decreased 22% over the past five years compared to the prior five-year period. Community vulnerability is elevated (89th 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. Marion County has been designated in 37 declarations since 1969, covering 7 disaster types including hurricane (15), severe storm (12), flood (3).
| 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 |
| 2022 | Hurricane | Hurricane Ida |
| 2021 | Hurricane | Hurricane Ida |
| 2021 | Hurricane | Hurricane Delta |
| 2020 | Severe Storm | Severe Storms, Flooding, And Mudslides |
| 2020 | Severe Storm | Severe Storm, Straight-Line Winds, And Flooding |
| 2020 | Hurricane | Hurricane Sally |
| 2020 | Hurricane | Hurricane Marco And Tropical Storm Laura |
Showing the 10 most recent of 37 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 | Relatively Low | 75.8 | 0 | 0 | — |
| Inland Flooding | Relatively Low | 48.1 | 34 | 0 | $973K |
| Coastal Flooding | Not Applicable | — | 0 | 0 | — |
| Earthquake | Very Low | 49.9 | — | — | — |
| Heat Wave | Relatively Low | 67.1 | 0 | 0 | — |
| Tornado | Relatively Moderate | 73.4 | 19 | 1 | $2.5M |
| Hurricane | Relatively Moderate | 89.9 | 0 | 0 | — |
| Hail | Relatively Moderate | 89.5 | 17 | 0 | $27.1M |
| Strong Wind | Relatively Moderate | 55.3 | 0 | 0 | — |
| Winter Weather | Relatively Low | 33.5 | 0 | 0 | — |
| Ice Storm | Relatively Low | 53 | — | — | — |
| Cold Wave | Relatively Low | 35.2 | — | — | — |
| Lightning | Relatively Low | 51.3 | 1 | 0 | $200K |
| Drought | Relatively Low | 46.8 | 0 | 0 | — |
| Landslide | Very Low | 54.5 | 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
Marion County ranks in the 89th 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 | 89th | High |
| Socioeconomic status | 98th | High |
| Household characteristics | 60th | Moderate |
| Racial & ethnic minority status | 74th | Moderate |
| Housing type & transportation | 69th | Moderate |
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 | 85th | Very High |
| Risk to homes | 82nd | Very High |
| Buildings in direct exposure zone | 86.8% | — |
NOAA tracked 64 weather events in this county over 2016–2025: 36 in 2016–20 vs 28 in 2021–25 (-22% — frequency decreasing).
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 Marion County?
According to the FEMA National Risk Index, the highest-risk hazards in Marion County, Mississippi are hurricane, hail, and wildfire. The county's overall natural hazard risk is rated Relatively Low — lower risk than most US counties.
Has Marion County received federal disaster declarations?
Yes. Marion County has received 37 federal disaster declarations since 1969, including declarations in 2026. The most common disaster type on record is hurricane (15 declarations).
Has Marion County had any FEMA disaster declarations in 2024, 2025, or 2026?
Yes. Recent federal disaster declarations for Marion 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 Marion County's natural hazard risk compare to nearby counties?
Among neighboring counties, Washington Parish, LA has the highest overall natural hazard risk (Relatively Moderate) and Jefferson Davis County, MS has the lowest (Very Low). Marion County is rated Relatively Low overall.
How is Marion County's composite disaster risk index calculated?
Marion 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. Marion County's composite score of 60 means its overall natural hazard risk is higher than 60% of US counties.