Greene County, MS
FEMA National Risk Index scores, disaster declarations & hazard data
Greene 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.
Greene County's highest-rated hazards are hurricane, wildfire, and tornado, with its top risk rated "Relatively Moderate" by FEMA's National Risk Index. Recorded storm events have decreased 19% over the past five years compared to the prior five-year period. Community vulnerability is elevated (78th 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. Greene County has been designated in 33 declarations since 1969, covering 7 disaster types including hurricane (18), severe storm (7), flood (2).
| Year | Type | Event name |
|---|---|---|
| 2026 | Tropical Storm | Tropical Storm Arthur |
| 2026 | Winter Storm | Severe Winter Storm |
| 2026 | Winter Storm | Severe Winter Storm |
| 2023 | Severe Storm | Severe Storms, Straight-Line Winds, And Tornadoes. |
| 2022 | Hurricane | Hurricane Ida |
| 2021 | Hurricane | Hurricane Zeta |
| 2021 | Hurricane | Hurricane Zeta |
| 2021 | Hurricane | Hurricane Ida |
| 2020 | Hurricane | Hurricane Sally |
| 2020 | Hurricane | Hurricane Marco And Tropical Storm Laura |
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 | Relatively Low | 73.3 | 0 | 0 | — |
| Inland Flooding | Relatively Low | 38.3 | 7 | 0 | $500K |
| Coastal Flooding | Not Applicable | — | 0 | 0 | — |
| Earthquake | Very Low | 31 | — | — | — |
| Heat Wave | Relatively Low | 48.2 | 0 | 0 | — |
| Tornado | Relatively Low | 56.9 | 9 | 0 | $225K |
| Hurricane | Relatively Moderate | 87.5 | 0 | 0 | — |
| Hail | Relatively Low | 34.3 | 15 | 0 | — |
| Strong Wind | Relatively Low | 30.7 | 0 | 0 | — |
| Winter Weather | Very Low | 17.5 | 0 | 0 | — |
| Ice Storm | Very Low | 25.4 | — | — | — |
| Cold Wave | Relatively Low | 32.4 | — | — | — |
| Lightning | Relatively Low | 50.8 | 0 | 0 | — |
| Drought | Relatively Low | 36.2 | 0 | 0 | — |
| Landslide | Very Low | 47.2 | 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
Greene County ranks in the 78th 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 | 78th | High |
| Socioeconomic status | 89th | High |
| Household characteristics | 13th | Very low |
| Racial & ethnic minority status | 65th | Moderate |
| Housing type & transportation | 90th | High |
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 | 95.7% | — |
NOAA tracked 29 weather events in this county over 2016–2025: 16 in 2016–20 vs 13 in 2021–25 (-19% — 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 Greene County?
According to the FEMA National Risk Index, the highest-risk hazards in Greene County, Mississippi are hurricane, wildfire, and tornado. The county's overall natural hazard risk is rated Very Low — among the lowest-risk counties in the country.
Has Greene County received federal disaster declarations?
Yes. Greene County has received 33 federal disaster declarations since 1969, including declarations in 2026. The most common disaster type on record is hurricane (18 declarations).
Has Greene County had any FEMA disaster declarations in 2024, 2025, or 2026?
Yes. Recent federal disaster declarations for Greene County include Tropical Storm Arthur (2026), Severe Winter Storm (2026), Severe Winter Storm (2026). See the declarations table above for the full history since 1969.
How does Greene County's natural hazard risk compare to nearby counties?
Among neighboring counties, Forrest County, MS has the highest overall natural hazard risk (Relatively Low) and Perry County, MS has the lowest (Very Low). Greene County is rated Very Low overall.
How is Greene County's composite disaster risk index calculated?
Greene 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. Greene County's composite score of 42 means its overall natural hazard risk is higher than 42% of US counties.