Disaster Data / States / Iowa / Union County

County

Union County, Iowa

Union County recorded 12 federal disaster and emergency declarations since FY2000 (through FY2025): 10 major disasters, 2 emergencies, and 0 fire-management declarations. Its most common hazard is severe storm.

Highlighted: Union County, IA

Totals: FY2000–FY2025 · Page last rebuilt Sep 12, 2026 · the current in-progress fiscal year is not included in totals

12
Declarations since FY2000
10
Major disasters (DR)
2
Emergencies (EM)
0
Fire management (FM)
May 2024
Most recent
$6.4M
Federal PA obligated (top: roads and bridges)

The federal disaster record for Union County runs between 2001 and 2024, covering 12 declarations in all. Its most recent major disaster declaration was Severe Storms And Tornadoes in 2024. The hazards behind these declarations were most often severe storm, biological, and severe ice storm. Since 2000, FEMA has obligated about $6.4 million in Public Assistance funding to the jurisdiction, most of it for roads and bridges.

Risk and vulnerability context

Historical declarations show what has happened here. These national datasets add context about underlying natural-hazard risk and community vulnerability.

County FIPS 19175
CDC / ATSDR

Social Vulnerability Index

2022 county-level SVI
37.7
overall percentile nationally

Approximately 37.7% of U.S. counties have an equal or lower overall SVI ranking.

Socioeconomic status32.3
Household characteristics59.9
Racial and ethnic minority status13.4
Housing type and transportation48.9

Higher percentiles indicate greater relative social vulnerability within the CDC SVI framework. CDC SVI documentation

FEMA

National Risk Index

December 2025
49.5
overall risk score
Relatively Low
Expected annual loss$12.5MVery Low
NRI social vulnerability74.2Relatively High
Community resilience76.9Relatively High

The NRI combines expected annual loss, social vulnerability, and community resilience to describe relative natural-hazard risk. FEMA NRI documentation

About these measures: CDC Social Vulnerability Index and FEMA National Risk Index Social Vulnerability are separate measures built with different methods. They are shown side by side for context and should not be interpreted as equivalent scores.

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.

CategoryProjectsFederal share obligated
Roads and bridges(C)200$4,131,373
Buildings and equipment(E)26$891,275
Utilities(F)14$656,165
Parks and recreation(G)9$314,990
Emergency protective measures(B)20$222,720
Debris removal(A)13$178,781
Management costs(Z)2$38,513
Water control facilities(D)2$12,223
All categories286$6,446,040

Recovery funding, how fast it came

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 6-year scale. Typical wait to the first obligation here: about 208 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.

Severe Storms And Tornadoes 2024$616K
420 days to first federal obligation
Covid-19 Pandemic 2020$113K
357 days to first federal obligation
Severe Storms And Flooding 2019$1.1M
272 days to first federal obligation
Severe Storms, Flooding, And Tornadoes 2010$187K
144 days to first federal obligation
Severe Storms, Tornadoes, And Flooding 2008$3.4M
71 days to first federal obligation
Severe Winter Storm 2008$363K
34 days to first federal obligation
Declared1 yr2 yr3 yr4 yr5 yr6 yr

Assistance to households (Individual Assistance)

FEMA Individual Assistance to households in this jurisdiction, combined across the Housing Assistance owner and renter programs. Valid registrations are households that applied within a designated Individual Assistance area; approved counts and dollars are the households FEMA found eligible under the Individuals and Households Program. Figures are self-reported and drawn from NEMIS through OpenFEMA, not audited, and Individual Assistance exists only for disasters where it was designated, so many jurisdictions show none.

999
valid registrations
638
households approved
$1,479,749
total IHP approved
Assistance typeApproved amount
Repair and replacement$1,238,106
Rental assistance$19,229
Other needs$222,413

Hazard mitigation, what has been funded here

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.

$7,000,749
federal mitigation share
11
funded projects
3
properties mitigated
ProgramProjectsFederal share obligated
Hazard Mitigation Grant Program(HMGP)9$6,980,937
Building Resilient Infrastructure and Communities(BRIC)1$11,464
Pre-Disaster Mitigation(PDM)1$8,349

State declarations (governor)

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.

14
state declarations with local storm evidence
54
statewide on record

Archive coverage for Iowa: 2024-present HSEMD proclamation tables; 2000-2023 not collected.; Collection failed: Iowa adapter: scrape failed

SignedOrderDeclarationHazards reported hereReported damage
Apr 18, 20252025-13Severe Weather occurring on April 18, 2025 (Buena Vista, Fremont, Page, and Plymouth Counties)Hail, Tornado$46,000
Jun 28, 20242024-31Severe Storms and Flooding June 21 and continuing (Buena Vista, Cerro Gordo, Cherokee, Clay, Dickinson, Emmet, Floyd, Fremont, Harrison, Hancock, Humboldt, Kossuth, Lyon, Mills, Monona, O'Brien, Osceola, Palo Alto, Plymouth, Pocahontas, Pottawattamie, Sioux, Webster, Winnebago, Woodbury, Worth and Wright)Thunderstorm WindNot reported
Jun 26, 20242024-30Severe Storms and Flooding June 21 and continuing (Buena Vista, Cerro Gordo, Cherokee, Clay, Dickinson, Emmet, Floyd, Fremont, Harrison, Hancock, Humboldt, Kossuth, Lyon, Mills, Monona, O'Brien, Osceola, Palo Alto, Plymouth, Pocahontas, Pottawattamie, Sioux, Webster, Winnebago, Woodbury, Worth and Wright)Thunderstorm WindNot reported
Jun 26, 20242024-28Severe Storms and Flooding June 21 and continuing (Harrison, Johnson, Mills and Pottawattamie)Thunderstorm WindNot reported
Jun 24, 20242024-27Severe Storms and Flooding June 21 and continuing (Allamakee)Thunderstorm WindNot reported
Jun 24, 20242024-26Severe Storms and Flooding June 21 and continuing (Fremont, Harrison, Mills, Monona, and Pottawattamie)Thunderstorm WindNot reported
Jun 23, 20242024-25Severe Storms and Flooding June 21 and continuing (Palo Alto)Thunderstorm WindNot reported
Jun 22, 20242024-24Severe Storms and Flooding June 21 and continuing (Buena Vista, Cerro Gordo, Cherokee, Clay, Dickinson, Emmet, Floyd, Hancock, Humboldt, Kossuth, Lyon, O’Brien, Osceola, Plymouth, Pocahontas, Sioux, Webster, Winnebago, Woodbury, Worth, and Wright)Thunderstorm WindNot reported
Jun 22, 20242024-23Severe Storms and Flooding June 21 and continuing (Sioux County)Thunderstorm WindNot reported
May 24, 20242024-14Severe weather beginning May 20 and continuing (Calhoun, Cerro Gordo, Johnson, Keokuk, Marion, Scott, Shelby, Union, Washington, and Wright Counties)Hail, Tornado$1,000
May 22, 20242024-13Severe weather beginning May 20 and continuing (Black Hawk, Buena Vista, Butler, Cedar, Clinton, Dubuque, Fayette, Franklin, Hancock, Humboldt, Iowa, Jackson, Mills, Muscatine, O'Brien, Polk and Story Counties)Hail, Tornado$1,000
May 21, 20242024-12Severe weather beginning May 20 and continuing (Adair, Adams, Cass, Clay, Hardin, Harrison, Jasper, Kossuth, Marshall, Montgomery, Page, Palo Alto, Pottawattamie, Tama, and Warren Counties)Hail, Tornado$1,000
Apr 29, 20242024-10Severe weather beginning April 26 and continuing (allows state resources to be utilized to respond to, and recover from, the effects of severe weather in Clarke, Crawford, Harrison, Mills, Polk, Ringgold, Shelby, and Union Counties)Hail, Thunderstorm Wind, Tornado$975,000
Apr 26, 20242024-09Severe weather beginning April 26 and continuing (allows state resources to be utilized to respond to, and recover from, the effects of severe weather in Pottawattamie County)Thunderstorm Wind, Tornado$975,000

Source: state executive order archives collected by DisasterData Plus, joined to NOAA Storm Events. See the Plus overview for per-state coverage and method.

Most common hazards

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.

HazardDateFEMA declarationType
TornadoMay 14, 2024DR-4779-IADR
BiologicalMar 23, 2020DR-4483-IADR
BiologicalMar 13, 2020EM-3480-IAEM
FloodMar 23, 2019DR-4421-IADR
Severe StormJul 29, 2010DR-1930-IADR
Severe StormMar 2, 2010DR-1880-IADR
Severe StormMay 27, 2008DR-1763-IADR
Severe Ice StormJan 4, 2008DR-1737-IADR
Severe StormSep 14, 2007DR-1727-IADR
Severe StormMay 25, 2007DR-1705-IADR
HurricaneSep 10, 2005EM-3239-IAEM
Severe StormMay 2, 2001DR-1367-IADR

Every declaration on record

DR = Major disaster (Stafford Act) · EM = Emergency declaration · FM = Fire management assistance

Showing 12 declarations

DateNumberTypeHazardTitle
May 14, 2024DR-4779-IADRTornadoSevere Storms And Tornadoes
Mar 23, 2020DR-4483-IADRBiologicalCovid-19 Pandemic
Mar 13, 2020EM-3480-IAEMBiologicalCovid-19
Mar 23, 2019DR-4421-IADRFloodSevere Storms And Flooding
Jul 29, 2010DR-1930-IADRSevere StormSevere Storms, Flooding, And Tornadoes
Mar 2, 2010DR-1880-IADRSevere StormSevere Winter Storm
May 27, 2008DR-1763-IADRSevere StormSevere Storms, Tornadoes, And Flooding
Jan 4, 2008DR-1737-IADRSevere Ice StormSevere Winter Storm
Sep 14, 2007DR-1727-IADRSevere StormSevere Storms And Flooding
May 25, 2007DR-1705-IADRSevere StormSevere Storms, Flooding, And Tornadoes
Sep 10, 2005EM-3239-IAEMHurricaneHurricane Katrina Evacuation
May 2, 2001DR-1367-IADRSevere StormSevere Storms, Tornadoes And Flooding
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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 Iowa'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.

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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.

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