Hyde County, SD
FEMA National Risk Index scores, disaster declarations & hazard data
Hyde County has experienced 28 federally declared disasters since 1969, most recently Covid-19 in 2020. Its overall natural hazard risk is rated Very Low — among the lowest-risk counties in the country.
Hyde County's highest-rated hazards are wildfire, cold wave, and drought, with its top risk rated "Relatively Low" 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 relatively low (2nd percentile nationally), indicating stronger recovery capacity than most US counties.
Past disasters & FEMA designations
A federal disaster declaration officially designates a county for FEMA disaster assistance. Hyde County has been designated in 28 declarations since 1969, covering 6 disaster types including biological (16), flood (6), severe storm (3).
| Year | Type | Event name |
|---|---|---|
| 2020 | Biological | Covid-19 Pandemic |
| 2020 | Biological | Covid-19 Pandemic |
| 2020 | Biological | Covid-19 Pandemic |
| 2020 | Biological | Covid-19 Pandemic |
| 2020 | Biological | Covid-19 Pandemic |
| 2020 | Biological | Covid-19 Pandemic |
| 2020 | Biological | Covid-19 Pandemic |
| 2020 | Biological | Covid-19 Pandemic |
| 2020 | Biological | Covid-19 Pandemic |
| 2020 | Biological | Covid-19 Pandemic |
Showing the 10 most recent of 28 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 | 83.7 | 0 | 0 | — |
| Inland Flooding | Very Low | 11.5 | 6 | 0 | $178K |
| Coastal Flooding | Not Applicable | — | 0 | 0 | — |
| Earthquake | Very Low | 9.1 | — | — | — |
| Heat Wave | Very Low | 10.8 | 10 | 0 | — |
| Tornado | Very Low | 17.8 | 3 | 0 | — |
| Hurricane | Not Applicable | — | 0 | 0 | — |
| Hail | Very Low | 29.2 | 29 | 0 | — |
| Strong Wind | Very Low | 9 | 0 | 0 | — |
| Winter Weather | Relatively Low | 28.7 | 0 | 0 | — |
| Ice Storm | Relatively Low | 32.3 | — | — | — |
| Cold Wave | Relatively Low | 47.9 | — | — | — |
| Lightning | Very Low | 0.6 | 0 | 0 | — |
| Drought | Relatively Low | 42.8 | 0 | 0 | — |
| Landslide | Very Low | 1.8 | 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
Hyde County ranks in the 2nd percentile (Very low) 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 | 2nd | Very low |
| Socioeconomic status | 4th | Very low |
| Household characteristics | 3rd | Very low |
| Racial & ethnic minority status | 30th | Low |
| Housing type & transportation | 6th | Very 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 | 72nd | Relatively High |
| Risk to homes | 76th | Relatively High |
| Buildings in direct exposure zone | 76.5% | — |
NOAA tracked 48 weather events in this county over 2016–2025: 27 in 2016–20 vs 21 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 Hyde County?
According to the FEMA National Risk Index, the highest-risk hazards in Hyde County, South Dakota are wildfire, cold wave, and drought. The county's overall natural hazard risk is rated Very Low — among the lowest-risk counties in the country.
Has Hyde County received federal disaster declarations?
Yes. Hyde County has received 28 federal disaster declarations since 1969, including declarations in 2020. The most common disaster type on record is biological (16 declarations).
Has Hyde County had any FEMA disaster declarations in 2024, 2025, or 2026?
No federal disaster declarations have been recorded for Hyde County since the start of 2024. Its most recent declaration on record is Covid-19 in 2020.
How does Hyde County's natural hazard risk compare to nearby counties?
Among neighboring counties, Hughes County, SD has the highest overall natural hazard risk (Very Low) and Sully County, SD has the lowest (Very Low). Hyde County is rated Very Low overall.
How is Hyde County's composite disaster risk index calculated?
Hyde 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. Hyde County's composite score of 7 means its overall natural hazard risk is higher than 7% of US counties.