Grenada County, MS
FEMA National Risk Index scores, disaster declarations & hazard data
Grenada County has experienced 27 federally declared disasters since 1971, most recently Severe Winter Storm in 2026. Its overall natural hazard risk is rated Relatively Low — lower risk than most US counties.
Grenada County's highest-rated hazards are earthquake, tornado, and lightning, with its top risk rated "Relatively Low" by FEMA's National Risk Index. Recorded storm events have decreased 40% over the past five years compared to the prior five-year period. Community vulnerability is elevated (85th 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. Grenada County has been designated in 27 declarations since 1971, covering 8 disaster types including severe storm (10), hurricane (6), winter storm (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 |
| 2022 | Hurricane | Hurricane Ida |
| 2021 | Severe Ice Storm | Severe Winter Storms |
| 2021 | Hurricane | Hurricane Ida |
| 2020 | Severe Storm | Severe Storms, Tornadoes, Straight-Line Winds, And Flooding |
| 2020 | Severe Storm | Severe Storms, Flooding, And Mudslides |
| 2020 | Biological | Covid-19 Pandemic |
| 2020 | Biological | Covid-19 |
Showing the 10 most recent of 27 total declarations since 1971.
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 | 49.1 | 0 | 0 | — |
| Inland Flooding | Relatively Low | 58.7 | 22 | 0 | $1.3M |
| Coastal Flooding | Not Applicable | — | 0 | 0 | — |
| Earthquake | Relatively Low | 82.5 | — | — | — |
| Heat Wave | Relatively Low | 68.7 | 0 | 0 | — |
| Tornado | Relatively Moderate | 74.8 | 2 | 0 | — |
| Hurricane | Relatively Low | 60.7 | 0 | 0 | — |
| Hail | Relatively Low | 69.5 | 9 | 0 | $120K |
| Strong Wind | Relatively Moderate | 62.4 | 0 | 0 | — |
| Winter Weather | Very Low | 8 | 0 | 0 | — |
| Ice Storm | Relatively Low | 55.9 | — | — | — |
| Cold Wave | Relatively Low | 58.4 | — | — | — |
| Lightning | Relatively Moderate | 73.5 | 0 | 0 | — |
| Drought | Relatively Low | 49 | 0 | 0 | — |
| Landslide | Relatively Low | 70 | 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
Grenada County ranks in the 85th 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 | 85th | High |
| Socioeconomic status | 91st | High |
| Household characteristics | 69th | Moderate |
| Racial & ethnic minority status | 86th | High |
| Housing type & transportation | 63rd | 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 | 62nd | Relatively High |
| Risk to homes | 59th | Relatively Moderate |
| Buildings in direct exposure zone | 64.6% | — |
NOAA tracked 32 weather events in this county over 2016–2025: 20 in 2016–20 vs 12 in 2021–25 (-40% — 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 Grenada County?
According to the FEMA National Risk Index, the highest-risk hazards in Grenada County, Mississippi are earthquake, tornado, and lightning. The county's overall natural hazard risk is rated Relatively Low — lower risk than most US counties.
Has Grenada County received federal disaster declarations?
Yes. Grenada County has received 27 federal disaster declarations since 1971, including declarations in 2026. The most common disaster type on record is severe storm (10 declarations).
Has Grenada County had any FEMA disaster declarations in 2024, 2025, or 2026?
Yes. Recent federal disaster declarations for Grenada 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 1971.
How does Grenada County's natural hazard risk compare to nearby counties?
Among neighboring counties, Tallahatchie County, MS has the highest overall natural hazard risk (Very Low) and Montgomery County, MS has the lowest (Very Low). Grenada County is rated Relatively Low overall.
How is Grenada County's composite disaster risk index calculated?
Grenada 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. Grenada County's composite score of 55 means its overall natural hazard risk is higher than 55% of US counties.