Disaster Data / States / Iowa / O'Brien County

County

O'Brien County, Iowa

O'Brien County recorded 11 federal disaster and emergency declarations since FY2000 (through FY2025): 8 major disasters, 3 emergencies, and 0 fire-management declarations. Its most common hazard is severe storm.

Highlighted: O'Brien County, IA

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

11
Declarations since FY2000
8
Major disasters (DR)
3
Emergencies (EM)
0
Fire management (FM)
Jun 2024
Most recent
$5.1M
Federal PA obligated (top: roads and bridges)

The federal disaster record for O'Brien County runs between 2005 and 2024, covering 11 declarations in all. Its most recent major disaster declaration was Severe Storms, Flooding, Straight-Line Winds, And Tornadoes in 2024. The hazards behind these declarations were most often severe storm, biological, and flood. Since 2000, FEMA has obligated about $5.1 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 19141
CDC / ATSDR

Social Vulnerability Index

2022 county-level SVI
36.8
overall percentile nationally

Approximately 36.8% of U.S. counties have an equal or lower overall SVI ranking.

Socioeconomic status12.3
Household characteristics60.3
Racial and ethnic minority status27.3
Housing type and transportation78.4

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

FEMA

National Risk Index

December 2025
16.4
overall risk score
Very Low
Expected annual loss$11.1MVery Low
NRI social vulnerability10.6Very Low
Community resilience96.3Very 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)31$1,676,665
Utilities(F)14$1,544,486
Debris removal(A)17$635,524
Water control facilities(D)2$537,848
Emergency protective measures(B)41$399,390
Management costs(Z)9$138,718
Parks and recreation(G)4$74,028
Buildings and equipment(E)7$53,010
All categories125$5,059,669

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 5-year scale. Typical wait to the first obligation here: about 171 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, Flooding, Straight-Line Winds, And Tornadoes 2024$2.7M
283 days to first federal obligation
Covid-19 Pandemic 2020$55K
267 days to first federal obligation
Severe Storms And Flooding 2019$256K
223 days to first federal obligation
Severe Storms, Tornadoes, Straight-Line Winds, And Flooding 2018$1.1M
120 days to first federal obligation
Severe Storms, Tornadoes, And Flooding 2013$112K
84 days to first federal obligation
Severe Winter Storm 2013$257K
43 days to first federal obligation
Declared1 yr2 yr3 yr4 yr5 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.

1,137
valid registrations
966
households approved
$4,532,234
total IHP approved
Assistance typeApproved amount
Repair and replacement$2,644,802
Rental assistance$44,028
Other needs$1,843,404

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.

$69,558
federal mitigation share
3
funded projects
ProgramProjectsFederal share obligated
Hazard Mitigation Grant Program(HMGP)3$69,558

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.

25
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
May 22, 20262026-08Severe Weather Occurring on May 15 and continuing(Cherokee, Clay, Kossuth, Montgomery, and Ringgold Counties)HailNot reported
May 20, 20262026-07Severe Weather Occurring on May 15 and continuing(Emmet, Hancock, Palo Alto, Plymouth, Pocahontas, Winnebago, Woodbury, and Worth Counties)HailNot reported
Apr 15, 20262026-04Severe Weather Occurring on April 13 and continuing(Buchanan, Clay, Henry, Palo Alto and Plymouth Counties)Hail, TornadoNot reported
Jul 31, 20252025-20Severe Weather occurring on July 28, 2025 and continuing (Plymouth County)Flash Flood, Thunderstorm WindNot reported
Jul 31, 20252025-19Severe Weather and Flooding occurring on July 17, 2025 (Hancock County)Flash Flood, Thunderstorm WindNot reported
Jul 30, 20252025-18Severe Weather occurring on July 28, 2025 and continuing (Buena Vista, Cerro Gordo, Clay, Dickinson, Lyon, Palo Alto, Worth Counties)Flash Flood, Thunderstorm WindNot reported
Jul 29, 20252025-17Severe Weather occurring on July 28, 2025 (Hancock, O'Brien, Osceola, Sioux Counties)Flash Flood, Thunderstorm WindNot reported
Apr 18, 20252025-13Severe Weather occurring on April 18, 2025 (Buena Vista, Fremont, Page, and Plymouth Counties)HailNot reported
Jul 9, 20242024-33Severe Storms and Flash Flooding July 4 and continuing (Chickasaw and Wright)Hail$4,000
Jul 3, 20242024-32Severe 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)FloodNot reported
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)FloodNot reported
Jun 24, 20242024-27Severe Storms and Flooding June 21 and continuing (Allamakee)Flash Flood, Flood, Thunderstorm Wind$2,250,000
Jun 24, 20242024-26Severe Storms and Flooding June 21 and continuing (Fremont, Harrison, Mills, Monona, and Pottawattamie)Flash Flood, Flood, Thunderstorm Wind$2,250,000
Jun 23, 20242024-25Severe Storms and Flooding June 21 and continuing (Palo Alto)Flash Flood, Flood, Thunderstorm Wind$2,250,000
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)Flash Flood, Flood, Thunderstorm Wind$2,250,000
Jun 22, 20242024-23Severe Storms and Flooding June 21 and continuing (Sioux County)Flash Flood, Flood, Thunderstorm Wind$2,250,000
Jun 19, 20242024-21Severe weather beginning June 12 and continuing (Carroll, Clay, Dickinson, Emmet, Harrison, and O'Brien)Flash Flood, Thunderstorm WindNot reported
Jun 14, 20242024-20Severe weather beginning June 12 and continuing (Monona and Woodbury Counties)Hail, Thunderstorm WindNot reported
Jun 3, 20242024-18Severe weather beginning May 31 and continuing (O'Brien and Kossuth Counties)TornadoNot reported
May 28, 20242024-16Severe weather beginning May 20 and continuing (Dallas, Poweshiek, and Webster Counties)TornadoNot reported
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$4,000
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$4,000
May 8, 20242024-11Severe weather beginning May 6 and continuing (allows state resources to be utilized to respond to, and recover from, the effects of severe weather in Clarke, Marion, O’Brien, and Pottawattamie Counties)Thunderstorm WindNot reported
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)HailNot reported
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)HailNot 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.

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 O'Brien County, sourced to OpenFEMA and refreshed weekly. Copy it straight into your plan.

HazardDateFEMA declarationType
Severe StormJun 24, 2024DR-4796-IADR
BiologicalMar 23, 2020DR-4483-IADR
BiologicalMar 13, 2020EM-3480-IAEM
FloodMar 23, 2019DR-4421-IADR
Severe StormAug 20, 2018DR-4386-IADR
Severe StormJul 2, 2013DR-4126-IADR
Severe StormMay 6, 2013DR-4114-IADR
Severe StormJul 29, 2010DR-1930-IADR
Severe StormFeb 25, 2010DR-1877-IADR
SnowstormMar 30, 2007EM-3275-IAEM
HurricaneSep 10, 2005EM-3239-IAEM

Every declaration on record

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

Showing 11 declarations

DateNumberTypeHazardTitle
Jun 24, 2024DR-4796-IADRSevere StormSevere Storms, Flooding, Straight-Line Winds, And Tornadoes
Mar 23, 2020DR-4483-IADRBiologicalCovid-19 Pandemic
Mar 13, 2020EM-3480-IAEMBiologicalCovid-19
Mar 23, 2019DR-4421-IADRFloodSevere Storms And Flooding
Aug 20, 2018DR-4386-IADRSevere StormSevere Storms, Tornadoes, Straight-Line Winds, And Flooding
Jul 2, 2013DR-4126-IADRSevere StormSevere Storms, Tornadoes, And Flooding
May 6, 2013DR-4114-IADRSevere StormSevere Winter Storm
Jul 29, 2010DR-1930-IADRSevere StormSevere Storms, Flooding, And Tornadoes
Feb 25, 2010DR-1877-IADRSevere StormSevere Winter Storms And Snowstorm
Mar 30, 2007EM-3275-IAEMSnowstormSnow
Sep 10, 2005EM-3239-IAEMHurricaneHurricane Katrina Evacuation
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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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