Johnson County recorded 10 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, 12 in all. Its most common hazard is severe storm.
Highlighted: Johnson County, IA
Totals: FY2000 to FY2026 · Page last rebuilt Oct 26, 2026 · the current in-progress fiscal year is not included in totals
10
Major disasters
2
Emergency declarations
0
Fire management grants
12
All declarations on record
Aug 2020
Most recent
$530.2M
Federal PA obligated (top: buildings and equipment)
The federal disaster record for Johnson County runs between 2002 and 2020, covering 12 declarations in all. Its most recent major disaster declaration was Severe Storms in 2020. The hazards behind these declarations were most often severe storm, flood, and biological. Since 2000, FEMA has obligated about $530.2 million in Public Assistance funding to the jurisdiction, most of it for buildings and equipment.
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 19103
CDC / ATSDR
Social Vulnerability Index
2022 county-level SVI
38.6
overall percentile nationally
Approximately 38.6% of U.S. counties have an equal or lower overall SVI ranking.
Socioeconomic status34.1
Household characteristics2.1
Racial and ethnic minority status58.3
Housing type and transportation88.5
Higher percentiles indicate greater relative social vulnerability within the CDC SVI framework. CDC SVI documentation
FEMA
National Risk Index
December 2025
87.4
overall risk score
Relatively Moderate
Expected annual loss$96.3MRelatively Moderate
NRI social vulnerability11.4Very Low
Community resilience96.7Very 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 obligated
$530M has been obligated to Johnson County in Public Assistance since FY2000.
$468M followed major disasters other than COVID-19. $63M, or 12% of the total, was COVID-19, which every county in the country received. $3K appears in FEMA's county totals but is not tied to a single declaration in the obligation timing file, so it is left unattributed here rather than assigned to a type.
Obligated is the committed share, not necessarily spent, and can be revised as projects close out.
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
Buildings and equipment(E)
143
$391,080,936
Emergency protective measures(B)
315
$127,975,121
Debris removal(A)
76
$4,497,506
Parks and recreation(G)
52
$2,930,501
Utilities(F)
33
$2,263,719
Roads and bridges(C)
36
$1,164,910
Water control facilities(D)
8
$167,197
Management costs(Z)
12
$83,610
All categories
675
$530,163,500
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 11-year scale. Typical wait to the first obligation here: about 72 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 2020$3.9M
168 days to first federal obligation
Covid-19 Pandemic 2020$62.5M
186 days to first federal obligation
Severe Storms, Tornadoes, Straight-Line Winds, And Flooding 2014$1.7M
80 days to first federal obligation
Severe Storms, Tornadoes, And Flooding 2013$2.8M
64 days to first federal obligation
Severe Storms, Straight-Line Winds, And Flooding 2013$721K
63 days to first federal obligation
Severe Storms, Tornadoes, And Flooding 2008$457.4M
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.
1,655
valid registrations
1,071
households approved
$7,705,985
total IHP approved
Assistance type
Approved amount
Repair and replacement
$3,571,707
Rental assistance
$1,131,901
Other needs
$2,977,709
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.
$12,848,613
federal mitigation share
28
funded projects
85
properties mitigated
Program
Projects
Federal share obligated
Hazard Mitigation Grant Program(HMGP)
26
$12,835,872
Pre-Disaster Mitigation(PDM)
2
$12,741
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.
26
state declarations with local storm evidence
54
statewide on record
Archive coverage for Iowa: 2024-present HSEMD proclamation tables; 2000-2023 not collected
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
Severe Storm 6
Flood 2
Biological 2
Severe Ice Storm 1
Hurricane 1
Every declaration on record
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 12 declarations
Date
Number
Type
Hazard
Title
Aug 17, 2020
DR-4557-IA
DR
Severe Storm
Severe Storms
Mar 23, 2020
DR-4483-IA
DR
Biological
Covid-19 Pandemic
Mar 13, 2020
EM-3480-IA
EM
Biological
Covid-19
Aug 5, 2014
DR-4187-IA
DR
Severe Storm
Severe Storms, Tornadoes, Straight-Line Winds, And Flooding
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). 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.
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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.