Disaster Data / States / South Dakota / Corson County
CountyCorson County recorded 9 federal major disaster declarations since FY2000 (through FY2026), the federal government's fullest response to an event. Alongside those sit 2 emergency declarations and 0 fire management declarations, 11 in all. Its most common hazard is severe storm.
Highlighted: Corson County, SD
Totals: FY2000 to FY2026 · Page last rebuilt Oct 26, 2026 · the current in-progress fiscal year is not included in totals
The federal disaster record for Corson County runs between 2005 and 2020, covering 11 declarations in all. Its most recent major disaster declaration was Covid-19 Pandemic in 2020. The hazards behind these declarations were most often severe storm, biological, and snowstorm. Since 2000, FEMA has obligated $435,618 in Public Assistance funding to the jurisdiction, most of it for roads and bridges.
Historical declarations show what has happened here. These national datasets add context about underlying natural-hazard risk and community vulnerability.
Approximately 73.2% of U.S. counties have an equal or lower overall SVI ranking.
Higher percentiles indicate greater relative social vulnerability within the CDC SVI framework. CDC SVI documentation
The NRI combines expected annual loss, social vulnerability, and community resilience to describe relative natural-hazard risk. FEMA NRI documentation
$436K has been obligated to Corson County in Public Assistance since FY2000.
$436K followed major disasters other than COVID-19.
Obligated is the committed share, not necessarily spent, and can be revised as projects close out.
Federal share obligated to this jurisdiction under FEMA Public Assistance since 2000, grouped by damage category. Figures are rounded to the nearest dollar and reflect obligations, which may change as projects close out.
| Category | Projects | Federal share obligated |
|---|---|---|
| Roads and bridges(C) | 34 | $425,927 |
| Emergency protective measures(B) | 2 | $9,691 |
| All categories | 36 | $435,618 |
For each disaster, the wait from the declaration to the first federal obligation (amber), then the federal share obligating after that (teal), on a shared 3-year scale. Typical wait to the first obligation here: about 62 days. An obligation is the federal share committed to the recipient state, not funds disbursed to the locality, which comes later and is not shown.
Federal Hazard Mitigation Assistance obligated to this jurisdiction to reduce future disaster losses, across the FEMA mitigation programs. This is the record of past mitigation investment a local hazard mitigation plan documents. Figures are federal share obligated, reported through OpenFEMA and not audited, and are separate from the Public Assistance funding above.
| Program | Projects | Federal share obligated |
|---|---|---|
| Hazard Mitigation Grant Program(HMGP) | 1 | $61,934 |
| Flood Mitigation Assistance(FMA) | 1 | $7,500 |
Emergency declarations issued by the governor of this state, which are separate from and usually precede a federal declaration. A declaration is listed here when NOAA Storm Events recorded reports of the matched hazard in this jurisdiction while the order was in effect. That is evidence of local impact during a declared state emergency. It is not a statement that the governor named this jurisdiction in the order, since most state declarations apply statewide and name no localities at all. Hazard categories come from the order text. Damage figures are NOAA storm report estimates for this jurisdiction only, not the cost of the declaration.
Archive coverage for South Dakota: 2020-present structured SD Secretary of State registry; 2000-2019 exists behind an unverified ASP.NET postback form, backfill pending
| Signed | Order | Declaration | Hazards reported here | Reported damage |
|---|---|---|---|---|
| Jul 27, 2026 | 2026-09 | Wind Disaster Declaration | Thunderstorm Wind | Not reported |
| Jul 26, 2024 | 2024-06 | Disaster Declaration | Hail, Thunderstorm Wind | Not reported |
| Jun 10, 2022 | 2022-06 | Emergency Disaster Declaration | Thunderstorm Wind | Not reported |
| May 13, 2022 | 2022-03 | State of Emergency Declaration | Thunderstorm Wind | Not reported |
Source: state executive order archives collected by DisasterData Plus, joined to NOAA Storm Events. See the Plus overview for per-state coverage and method.
Major disaster (DR). The big one. Opens the full toolbox: repair money for public infrastructure, help for households, and mitigation funding to reduce the next loss.
Emergency (EM). Narrower and usually faster, for protective work before or during an incident. Capped, and rarely brings household assistance. Nearly every county has one from COVID-19.
Fire management (FM). Cost sharing to fight a wildfire as it burns. Not a disaster declaration, and it does not open recovery programs.
Showing 11 declarations
| Date | Number | Type | Hazard | Title |
|---|---|---|---|---|
| Apr 5, 2020 | DR-4527-SD | DR | Biological | Covid-19 Pandemic |
| Mar 13, 2020 | EM-3475-SD | EM | Biological | Covid-19 |
| Jul 28, 2014 | DR-4186-SD | DR | Flood | Severe Storms, Tornadoes, And Flooding |
| Nov 8, 2013 | DR-4155-SD | DR | Severe Storm | Severe Winter Storm, Snowstorm, And Flooding |
| Jun 28, 2013 | DR-4125-SD | DR | Severe Storm | Severe Storms, Tornado, And Flooding |
| May 13, 2010 | DR-1914-SD | DR | Severe Storm | Severe Winter Storm |
| Mar 10, 2010 | DR-1887-SD | DR | Severe Storm | Severe Winter Storm |
| Jun 16, 2009 | DR-1844-SD | DR | Severe Storm | Severe Storms And Flooding |
| Dec 12, 2008 | DR-1811-SD | DR | Snowstorm | Severe Winter Storm And Record And Near Record Snow |
| Sep 10, 2005 | EM-3234-SD | EM | Coastal Storm | Hurricane Katrina Evacuation |
| Jul 22, 2005 | DR-1596-SD | DR | Severe Storm | Severe Storm |
Drawn from FEMA's OpenFEMA Disaster Declarations Summaries, rebuilt each week. A declaration is counted here once for each designated area it names, so a single disaster covering many localities is counted in each one. For that reason these jurisdiction counts do not sum to South Dakota's statewide total. This page counts declarations that named this jurisdiction as a designated area. Totals cover complete fiscal years (Oct 1 to Sep 30). Declarations from the fiscal year still in progress are listed in the tables on this page but are not counted in the totals until the year is complete. Uses OpenFEMA data but is not endorsed by or affiliated with FEMA.
Choose a citation style, then copy the formatted citation. This profile is derived from FEMA OpenFEMA data and is updated as the underlying Disaster Data build is refreshed.