Disaster Data / States / South Dakota / Union County
CountyUnion County, South Dakota
Union County recorded 13 federal disaster and emergency declarations since FY2000 (through FY2025): 11 major disasters, 2 emergencies, and 0 fire-management declarations. Its most common hazard is flood.
The federal disaster record for Union County runs between 2005 and 2024, covering 13 declarations in all. Its most recent major disaster declaration was Severe Storms, Straight-Line Winds, And Flooding in 2024. The hazards behind these declarations were most often flood, severe storm, and biological. Since 2000, FEMA has obligated about $27.9 million in Public Assistance funding to the jurisdiction, most of it for emergency protective measures.
Highlighted: Union County, SD
Federal Public Assistance by category
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 |
|---|---|---|
| Emergency protective measures(B) | 85 | $13,742,687 |
| Roads and bridges(C) | 139 | $5,361,089 |
| Utilities(F) | 17 | $3,487,533 |
| Debris removal(A) | 30 | $2,635,039 |
| Water control facilities(D) | 10 | $2,019,671 |
| Management costs(Z) | 8 | $424,720 |
| Parks and recreation(G) | 4 | $212,126 |
| Buildings and equipment(E) | 2 | $12,861 |
| All categories | 295 | $27,895,726 |
Most common hazards
- Flood 6
- Severe Storm 4
- Biological 2
- Coastal Storm 1
Previous occurrences, for your mitigation plan
Every local hazard mitigation plan must document previous occurrences of each hazard. Here is that record for Union County, sourced to OpenFEMA and refreshed weekly. Copy it straight into your plan.
| Hazard | Date | FEMA declaration | Type |
|---|---|---|---|
| Flood | Aug 15, 2024 | DR-4807-SD | DR |
| Biological | Apr 5, 2020 | DR-4527-SD | DR |
| Biological | Mar 13, 2020 | EM-3475-SD | EM |
| Severe Storm | Nov 18, 2019 | DR-4469-SD | DR |
| Flood | Sep 23, 2019 | DR-4463-SD | DR |
| Flood | Jun 7, 2019 | DR-4440-SD | DR |
| Flood | Jul 28, 2014 | DR-4186-SD | DR |
| Severe Storm | Jun 28, 2013 | DR-4125-SD | DR |
| Flood | May 13, 2011 | DR-1984-SD | DR |
| Severe Storm | Nov 2, 2010 | DR-1947-SD | DR |
| Severe Storm | Sep 23, 2010 | DR-1938-SD | DR |
| Flood | May 13, 2010 | DR-1915-SD | DR |
| Coastal Storm | Sep 10, 2005 | EM-3234-SD | EM |
Every declaration on record
DR = Major disaster (Stafford Act) · EM = Emergency declaration · FM = Fire management assistance
Showing 13 declarations
| Date | Number | Type | Hazard | Title |
|---|---|---|---|---|
| Aug 15, 2024 | DR-4807-SD | DR | Flood | Severe Storms, Straight-Line Winds, And Flooding |
| Apr 5, 2020 | DR-4527-SD | DR | Biological | Covid-19 Pandemic |
| Mar 13, 2020 | EM-3475-SD | EM | Biological | Covid-19 |
| Nov 18, 2019 | DR-4469-SD | DR | Severe Storm | Severe Storms, Tornadoes, And Flooding |
| Sep 23, 2019 | DR-4463-SD | DR | Flood | Severe Storms And Flooding |
| Jun 7, 2019 | DR-4440-SD | DR | Flood | Severe Winter Storm, Snowstorm, And Flooding |
| Jul 28, 2014 | DR-4186-SD | DR | Flood | Severe Storms, Tornadoes, And Flooding |
| Jun 28, 2013 | DR-4125-SD | DR | Severe Storm | Severe Storms, Tornado, And Flooding |
| May 13, 2011 | DR-1984-SD | DR | Flood | Flooding |
| Nov 2, 2010 | DR-1947-SD | DR | Severe Storm | Severe Storms And Flooding |
| Sep 23, 2010 | DR-1938-SD | DR | Severe Storm | Severe Storms And Flooding |
| May 13, 2010 | DR-1915-SD | DR | Flood | Flooding |
| Sep 10, 2005 | EM-3234-SD | EM | Coastal Storm | Hurricane Katrina Evacuation |
How these numbers are built
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.