Greenwood County, SC
FEMA National Risk Index scores, disaster declarations & hazard data
Greenwood County has experienced 20 federally declared disasters since 1977, most recently Severe Winter Storm in 2026. Its overall natural hazard risk is rated Relatively Low — lower risk than most US counties.
Greenwood County's highest-rated hazards are cold wave, ice storm, and tornado, with its top risk rated "Relatively High" by FEMA's National Risk Index. 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. Greenwood County has been designated in 20 declarations since 1977, covering 8 disaster types including hurricane (10), biological (2), tropical storm (2).
| Year | Type | Event name |
|---|---|---|
| 2026 | Winter Storm | Severe Winter Storm |
| 2024 | Hurricane | Hurricane Helene |
| 2024 | Tropical Storm | Hurricane Helene |
| 2024 | Tropical Storm | Hurricane Debby |
| 2023 | Hurricane | Hurricane Idalia |
| 2023 | Hurricane | Hurricane Ian |
| 2022 | Hurricane | Hurricane Ian |
| 2020 | Biological | Covid-19 Pandemic |
| 2020 | Biological | Covid-19 |
| 2019 | Hurricane | Hurricane Dorian |
Showing the 10 most recent of 20 total declarations since 1977.
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 | 54.4 | 0 | 0 | — |
| Inland Flooding | Relatively Low | 66.2 | 4 | 0 | $29K |
| Coastal Flooding | Not Applicable | — | 0 | 0 | — |
| Earthquake | Relatively Low | 84 | 1 | — | — |
| Heat Wave | Relatively Low | 70.8 | 0 | 0 | — |
| Tornado | Relatively Moderate | 85.6 | 4 | 0 | $240K |
| Hurricane | Relatively Low | 75.6 | 0 | 0 | — |
| Hail | Relatively Low | 65.6 | 7 | 0 | — |
| Strong Wind | Relatively Low | 50 | 0 | 0 | — |
| Winter Weather | Very Low | 21.9 | 0 | 0 | — |
| Ice Storm | Relatively High | 90.7 | — | — | — |
| Cold Wave | Relatively High | 90.7 | — | — | — |
| Lightning | Relatively Moderate | 66.6 | 0 | 0 | — |
| Drought | Relatively Low | 33.7 | 0 | 0 | — |
| Landslide | Very Low | 36.5 | 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
Greenwood 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 | 79th | High |
| Household characteristics | 75th | High |
| Racial & ethnic minority status | 80th | High |
| Housing type & transportation | 82nd | 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 | 60th | Relatively High |
| Risk to homes | 56th | Relatively Moderate |
| Buildings in direct exposure zone | 69.6% | — |
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 Greenwood County?
According to the FEMA National Risk Index, the highest-risk hazards in Greenwood County, South Carolina are cold wave, ice storm, and tornado. The county's overall natural hazard risk is rated Relatively Low — lower risk than most US counties.
Has Greenwood County received federal disaster declarations?
Yes. Greenwood County has received 20 federal disaster declarations since 1977, including declarations in 2026. The most common disaster type on record is hurricane (10 declarations).
Has Greenwood County had any FEMA disaster declarations in 2024, 2025, or 2026?
Yes. Recent federal disaster declarations for Greenwood County include Severe Winter Storm (2026), Hurricane Helene (2024), Hurricane Helene (2024), Hurricane Debby (2024). See the declarations table above for the full history since 1977.
How does Greenwood County's natural hazard risk compare to nearby counties?
Among neighboring counties, Laurens County, SC has the highest overall natural hazard risk (Relatively Low) and Lincoln County, GA has the lowest (Very Low). Greenwood County is rated Relatively Low overall.
How is Greenwood County's composite disaster risk index calculated?
Greenwood 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. Greenwood County's composite score of 73 means its overall natural hazard risk is higher than 73% of US counties.