Disaster Data / States / South Dakota / Sully County
CountySully County recorded 9 federal disaster and emergency declarations since FY2000 (through FY2025): 7 major disasters, 2 emergencies, and 0 fire-management declarations. Its most common hazard is severe storm.
Highlighted: Sully County, SD
Totals: FY2000–FY2025 · Page last rebuilt Sep 12, 2026 · the current in-progress fiscal year is not included in totals
The federal disaster record for Sully County runs between 2005 and 2020, covering 9 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, flood, and biological. Since 2000, FEMA has obligated $341,866 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 2.7% 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
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) | 36 | $333,228 |
| Management costs(Z) | 1 | $4,602 |
| Debris removal(A) | 2 | $4,036 |
| All categories | 39 | $341,866 |
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 4-year scale. Typical wait to the first obligation here: about 132 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) | 8 | $296,129 |
Every local hazard mitigation plan must document previous occurrences of each hazard. Here is that record for Sully County, sourced to OpenFEMA and refreshed weekly. Copy it straight into your plan.
| Hazard | Date | FEMA declaration | Type |
|---|---|---|---|
| Biological | Apr 5, 2020 | DR-4527-SD | DR |
| Biological | Mar 13, 2020 | EM-3475-SD | EM |
| Flood | Jun 7, 2019 | DR-4440-SD | DR |
| Severe Storm | Feb 1, 2017 | DR-4298-SD | DR |
| Flood | May 13, 2011 | DR-1984-SD | DR |
| Flood | May 13, 2010 | DR-1915-SD | DR |
| Severe Storm | Mar 10, 2010 | DR-1887-SD | DR |
| Coastal Storm | Sep 10, 2005 | EM-3234-SD | EM |
| Severe Storm | Jul 22, 2005 | DR-1596-SD | DR |
DR = Major disaster (Stafford Act) · EM = Emergency declaration · FM = Fire management assistance
Showing 9 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 |
| Jun 7, 2019 | DR-4440-SD | DR | Flood | Severe Winter Storm, Snowstorm, And Flooding |
| Feb 1, 2017 | DR-4298-SD | DR | Severe Storm | Severe Winter Storm |
| May 13, 2011 | DR-1984-SD | DR | Flood | Flooding |
| May 13, 2010 | DR-1915-SD | DR | Flood | Flooding |
| Mar 10, 2010 | DR-1887-SD | DR | Severe Storm | Severe Winter Storm |
| 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); the in-progress year may appear in the most-recent list but is not counted in the totals. 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.