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Iowa · FEMA + NOAA + National Risk Index

Mitchell County, IA

20 FEMA disaster declarations (1974-2024), with a FEMA National Risk Index rating of Very Low. Most common hazard: Severe Storm.

20
FEMA declarations
18
Major disasters
38
NRI risk · Very Low
Severe Storm
Top hazard

The verdict

Two federal records point in the busier direction for Mitchell County. Its 20 FEMA declarations are 4% above the Iowa county mean and exceed the count for 46% of the 3,266 counties in this registry. Separately, FEMA's National Risk Index places it safer than 38%, based on modeled expected annual loss, social vulnerability, and community resilience.

Safer than 38%
of U.S. counties for FEMA National Risk Index score
Very Low
FEMA National Risk Index rating
20
FEMA declarations vs 21 national county avg
25
NFIP flood insurance claims filed

FEMA's National Risk Index and its declaration registry are separate measures. This county's registry includes Major Disaster (DR) and Emergency (EM) records; an EM authorizes a narrower set of federal assistance than a DR.

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FEMA OpenFEMA declaration desk

County FIPS 19131 · Mitchell County 20 declarations · rank 1686/3,266

DECL-HEAVY · MAJOR-HEAVY · RANK-LOWER · PHOTO-FINISH · NRI-LOW · ACT-HIGH · TYPE-LEAD · VS-ST-ABOVE

  • DECL-HEAVY 20
  • MAJOR-HEAVY 90%
  • RANK-LOWER #1,686
  • PHOTO-FINISH Monona
  • NRI-LOW Very Low
  • ACT-HIGH High
  • TYPE-LEAD Severe Storm
  • VS-ST-ABOVE +4%

Nearest declaration peer: Monona, IA (0 declaration gap)

FEMA Disaster Declarations Summaries v2 filing stamps for this county register. Read with this county → · Iowa state profile

Mitchell County in the declaration-count neighbourhood

FEMA declaration records among Mitchell County and nearest peers by total count

declarations

What this shows Mitchell County carries 20 FEMA declaration records, ranked 1686 of 3,266 counties in this registry.

Source FEMA OpenFEMA Disaster Declarations Summaries v2 As of 2026-08-25

How Mitchell County's FEMA declaration count compares nationally

Mitchell County vs. all counties in this dataset

FEMA disaster declarations, all-time · Mitchell County

20 46th percentile higher than 46% of 3,266 counties

This county 0 90 all U.S. counties FEMA tracks, bucketed by value

Each bar is a band; taller bars hold more counties. The dashed line + filled bar mark this entry. Hover or tap any bar for its full count, share, and where it sits relative to this entry.

Source FEMA Disaster Declarations Summaries v2 · 2026-08-25

Mitchell County's FEMA Risk Index score

0/100100/100Iowa avg40/10037.7/100
FEMA National Risk Index composite score vs. the Iowa county average

Which hazard drives modeled loss here?

FEMA's modeled annual dollar loss for Mitchell County is led by Riverine Flooding (about $5.2M Expected Annual Loss, Historical Loss Ratio Very High), while Strong Wind carries the highest National Risk Index rating (Relatively High). EAL and risk score use different inputs; they need not agree.

Source: FEMA National Risk Index (December 2025 release) - Expected Annual Loss vs composite risk rating by hazard.

What does Mitchell County's hazard record show?

FEMA National Risk Index

FEMA's data shows an elevated National Risk Index composite of 37.7/100 for this county (Very Low rating). Expected Annual Loss comes in at Very Low (roughly $14.4M in annualized losses). Social vulnerability (Very Low) and community resilience (Very High) both factor into how that raw exposure plays out on the ground. Of the 18 hazards FEMA models, Strong Wind stands out as the sharpest exposure here, rated Relatively High. FEMA's modeled frequency puts that hazard at an average of 3.8 times per year here, based on 145 historical events on record.

Reading the federal records together

This county has a small entry in FEMA's NFIP paid-claims table: 25 claims and $467.3K paid in total. PlainHazard calls 1-49 claims a light registry record, a label for this dataset rather than a finding that flood exposure is low. A short claims history can also reflect insurance take-up, the period covered, or losses that were never insured.

The declaration register points in the busier direction. Mitchell County's 20 federal records stand 4% above the Iowa county mean of 19.3. That comparison describes how often federal action was recorded, including any Major Disaster, Emergency, and Fire Management entries shown on this page; it does not convert the count into future probability.

63 /100

Historical Activity Index

High historical activity

Mitchell County, IA · PlainHazard-derived composite from federal records

This 0–100 index is an explicit PlainHazard composite from FEMA declaration history only on the county surface (this DB has no county-level NOAA damage row) . It is not FEMA's National Risk Index, not a forecast, and not a safety, insurance, or preparedness rating. Open the calculator · Methodology

FEMA Declarations (1953–present) Moderate
14/30

20 OpenFEMA declarations, full ingest window (1.0x national county average)

County Disaster Density High
13/25

20 declarations (1.0x state county average of 19)

Major Disaster Share Very High
23/25

18 of 20 declarations are major disasters (90%)

Hazard Diversity High
13/20

5 different disaster types declared in Mitchell County

FEMA NRI 8-hazard radar - Mitchell County

Mitchell County NRI risk profile 8-axis FEMA National Risk Index radar showing per-hazard scores for Earthquake 8, Flood 25, Hurricane 0, Tornado 25, Wildfire 8, Drought 48, Heat Wave 8, Winter Storm 25. The simple mean of these eight displayed scores is 18 of 100. Earthquake Flood Hurricane Tornado Wildfire Drought Heat Wave Winter Storm 18 8-hazard mean
Mitchell County NRI risk profile FIPS 19131 · displayed-hazard mean 18/100
How to read this radar

Each axis: NRI risk rating (Very Low-Very High) on a 0-100 scale. Rounder = broad exposure; spiky = one or two hazards dominate.

FEMA Records

20

Above median

Major Disaster share

90%

Mostly major

NRI risk score

38

Very Low

Source: FEMA National Risk Index Per-county per-hazard ratings, December 2025 release

How often does each hazard strike Mitchell County?

FEMA's National Risk Index models a historical event count and an annualized frequency for each hazard type. Most hazards are expressed as modeled occurrences per year; FEMA expresses drought and heat-wave frequency as event-days per year. These modeled frequencies are not forecasts.

Hazard NRI Risk Rating Recurrence
Strong Wind Relatively High an average of 3.8 times per year
Drought Relatively Moderate 22 modeled event-days per year
Hail Relatively Low an average of 4.5 times per year
Tornado Relatively Low roughly once every 3 years
Winter Weather Relatively Low an average of 19 times per year
Riverine Flooding Relatively Low an average of 1.1 times per year
Cold Wave Relatively Low an average of 9.7 times per year
Landslide Very Low roughly once every 20 years
Ice Storm Very Low roughly once every 1 years
Heat Wave Very Low 3.8 modeled event-days per year
Wildfire Very Low roughly once every 10,070 years
Lightning Very Low an average of 40 times per year
Earthquake Very Low roughly once every 2,336 years

Source: FEMA National Risk Index Modeled annualized frequency; drought and heat wave use event-days/year, December 2025 release

Disaster Types

Severe Storm 10
Flood 6
Biological 2
Hurricane 1
Severe Ice Storm 1

What Severe Storm declarations mean here

Severe Storm is the most frequent declaration type on Mitchell County's record, 50% of its declarations. In FEMA's vocabulary this covers convective weather: thunderstorm straight-line winds, large hail, and the multi-day outbreaks that often carry embedded tornadoes. Activity is heaviest in spring and summer, though the season varies by region.

These events behave differently from a hurricane on paper. Damage tends to be distributed along a storm track rather than concentrated on a coastline, and a declaration typically follows an outbreak that crossed several counties over a few days, not a single point of impact. Because the qualifying threshold is the cost of uninsured public and individual losses rather than storm intensity, two similar storms can produce a declaration in one year and none in another.

Declaration counts describe past federal action. They are a record of what was declared, not a forecast of future hazard probability.

Declaration Types

What DR / EM / FM mean

FEMA categorizes declarations as Major Disasters (DR), Emergencies (EM), or Fire Management Assistance (FM).

Major Disaster - 18 90.0%

of all 20 declarations

Emergency - 2 10.0%

of all 20 declarations

FEMA Declarations Timeline

Year Declarations
2024 2
2022 1
2020 2
2019 1
2017 2
2016 1
2015 1
2013 1
2008 1
2007 1
2005 1
2004 1
1999 1
1993 2
1992 1
Show 1 earlier declaration years
1974 1

Disaster Declarations

How the 20 FEMA declarations break into federal action codes (DR / EM / FM). Same DISTINCT grain as the table below.

Download these 20 declarations as CSV . FEMA source data is public domain; our derived presentation is CC0.

DR# Title Type Incident Date
4796 SEVERE STORMS, FLOODING, STRAIGHT-LINE WINDS, AND TORNADOES DR Severe Storm 2024-06-24
4784 SEVERE STORMS, TORNADOES, AND FLOODING DR Severe Storm 2024-05-24
4642 SEVERE STORMS, STRAIGHT-LINE WINDS, AND TORNADOES DR Severe Storm 2022-02-23
4483 COVID-19 PANDEMIC DR Biological 2020-03-23
3480 COVID-19 EM Biological 2020-03-13
4421 SEVERE STORMS AND FLOODING DR Flood 2019-03-23
4334 SEVERE STORMS, TORNADOES, STRAIGHT-LINE WINDS, AND FLOODING DR Severe Storm 2017-08-27
4289 SEVERE STORMS AND FLOODING DR Flood 2016-10-31
4281 SEVERE STORMS, STRAIGHT-LINE WINDS, AND FLOODING DR Flood 2016-09-29
4234 SEVERE STORMS, TORNADOES, STRAIGHT-LINE WINDS, AND FLOODING DR Severe Storm 2015-07-31
4126 SEVERE STORMS, TORNADOES, AND FLOODING DR Severe Storm 2013-07-02
1763 SEVERE STORMS, TORNADOES, AND FLOODING DR Severe Storm 2008-05-27
1688 SEVERE WINTER STORMS DR Severe Storm 2007-03-14
3239 HURRICANE KATRINA EVACUATION EM Hurricane 2005-09-10
1518 SEVERE STORMS, TORNADOES, AND FLOODING DR Severe Storm 2004-05-25
1282 SEVERE STORMS AND FLOODING DR Severe Storm 1999-07-22
996 SEVERE STORMS & FLOODING DR Flood 1993-07-09
986 SEVERE STORMS & FLOODING DR Flood 1993-04-26
928 ICE STORM DR Severe Ice Storm 1991-12-26
443 SEVERE STORMS & FLOODING DR Flood 1974-06-24

Storm Events in Iowa

Statewide NOAA context only. PlainHazard does not currently attribute these state totals to Mitchell County.

Storm Type Events Fatalities Injuries Property Damage
Thunderstorm Wind 4,928 6 227 $40.5M
Hail 3,736 0 0 $4.3M
Heavy Rain 2,394 0 0 $292.0K
Drought 1,556 0 0 $0
Winter Storm 1,543 3 4 $2.8M

Source: NOAA Storm Events Database State-level aggregated data, 2015-2025

NFIP Flood Insurance Claims

Total Claims

25

Total Paid

$467.3K

Avg Per Claim

$18.7K

Source: FEMA National Flood Insurance Program (NFIP) OpenFEMA Claims Data

FEMA National Risk Index

Overall Risk

Very Low

Score: 37.7/100

Expected Annual Loss

Very Low

$14.4M/year

Social Vulnerability

Very Low

Community Resilience

Very High

Hazard Risk Breakdown

Strong Wind Relatively High
Drought Relatively Moderate
Hail Relatively Low
Tornado Relatively Low
Winter Weather Relatively Low
Riverine Flooding Relatively Low
Cold Wave Relatively Low
Landslide Very Low
Ice Storm Very Low
Heat Wave Very Low
Wildfire Very Low
Lightning Very Low
Earthquake Very Low
Hurricane No Rating

Source: FEMA National Risk Index (NRI) Ratings reflect relative scores among all US counties. Data: hazards.fema.gov/nri

The model's sharpest exposure here: Strong Wind

Strong Wind covers damaging non-thunderstorm, non-tornadic wind, the kind produced by steep pressure gradients and downslope events. It is a broad, frequent, low-drama hazard: roofs, signage, power lines and high-profile vehicles, spread across a wide area rather than concentrated on a path.

For Mitchell County the two measures on this page point the same way: Strong Wind is the county's highest-rated modeled hazard (Relatively High), and Severe Storm declarations also lead its federal record. Where the model and the declaration history agree, the reading is comparatively straightforward, the hazard is both expected and repeatedly realised.

National Risk Index ratings are modeled estimates of expected annual loss, not predictions of what will happen in any given year.

Data-matched county comparisons

Mitchell County's closest FEMA peer: Colfax County, NE

Comparisons use published FEMA declaration fields plus the National Risk Index composite for Mitchell County. Record similarity, not a safety rating.

How these peers are chosen

Cohort: Published U.S. county equivalents outside the source state or territory. Each metric keeps six ETL candidates; three unique destinations are shown after de-duplicating across axes. Declaration-volume ranking combines count and Major-disaster share and prefers a different leading incident type; Major-share ranks the Major fraction adjusted for volume; NRI ranks the modeled composite score only.

Retained FEMA snapshot feed for Mitchell County - capture-dated entries only.

Compare beyond this state

Nationwide peers by NRI score & FEMA declaration volume

Two PlainHazard-derived comparison paths for Mitchell County: nearest out-of-state National Risk Index composite and nearest FEMA declaration count (floor ≥5 records). Record similarity only, not a forecast of the next hazard.

Further reading for this county

Most disaster-prone counties

With 20 FEMA declarations, Mitchell County sits in the high-volume declaration band - see how that count ranks against other U.S. counties.

More PlainHazard guides

Frequently Asked Questions

What is the most common disaster type in Mitchell County?
The most common disaster type in Mitchell County is Severe Storm, with 10 declarations. Other disaster types include Flood (6), Biological (2), Hurricane (1).
How does Mitchell County's FEMA declaration record compare with the Iowa average?
FEMA lists 20 declaration records for Mitchell County. That is 4% above the Iowa county mean of 19.3. Its count is also 3% below the national county mean of 20.7. A larger declaration history records more federal actions; it is not a forecast of the county's next hazard.
How many major FEMA disaster declarations has Mitchell County received?
Mitchell County has received 18 major disaster declarations, representing 90% of all 20 disaster declarations.
How many flood insurance claims has Mitchell County filed?
Mitchell County has 25 National Flood Insurance Program (NFIP) claims totaling $467.3K in payments, with an average of $18.7K per claim.
Does FEMA's top risk-rated hazard match the highest Expected Annual Loss in Mitchell County?
No. In Mitchell County, Strong Wind has the highest National Risk Index rating (Relatively High), while Riverine Flooding leads Expected Annual Loss at about $5.2M. FEMA's risk score and dollar-loss model use different inputs, so the leaders often differ.
What was the worst year for disasters in Mitchell County?
The most active year for disaster declarations in Mitchell County was 1993, with 2 declarations. The county has FEMA disaster data spanning 1974 to 2024.
What is the FEMA National Risk Index score for Mitchell County?
According to the FEMA National Risk Index, Mitchell County, Iowa has an overall risk score of 37.7 out of 100 (Very Low). The county's social vulnerability rating is Very Low and community resilience is Very High. The Expected Annual Loss (EAL) score is Very Low, representing $14.4M in annualized losses.
Which natural hazard poses the greatest risk to Mitchell County?
The top hazard flagged by FEMA's NRI for Mitchell County as of the latest release is Strong Wind (risk rating: Relatively High). Other significant hazards include Drought (Relatively Moderate) and Hail (Relatively Low). FEMA's modeled event frequency puts strong wind here at an average of 3.8 times per year, drawn from 145 historical events on record. The underlying methodology weighs historical event frequency against exposed assets and community vulnerability.
Data Sources & Methodology

Disaster declaration data comes from the FEMA OpenFEMA Disaster Declarations Summaries v2 API, which includes all federally declared disasters, emergencies, and fire management assistance grants.

Storm event data is sourced from the NOAA Storm Events Database (2015-2025), which tracks significant weather events including thunderstorms, tornadoes, floods, and winter storms.

Flood insurance data comes from the FEMA National Flood Insurance Program (NFIP) OpenFEMA claims dataset.

This data is provided for informational purposes only. FEMA disaster declarations represent federal response actions and may not capture all local emergencies or weather events.

FEMA OpenFEMA declarations + NRI for Mitchell County · vintage 2026-08-25 · Methodology · Iowa profile · Verify with FEMA OpenFEMA · Verify with NOAA Storm Events