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Iowa · FEMA + NOAA + National Risk Index

Madison County, IA

20 FEMA disaster declarations (1972-2020), with a FEMA National Risk Index rating of Very Low. Most common hazard: Flood.

20
FEMA declarations
17
Major disasters
36
NRI risk · Very Low
Flood
Top hazard

The verdict

Two federal records point in the busier direction for Madison 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 36%, based on modeled expected annual loss, social vulnerability, and community resilience.

Safer than 36%
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
7
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 19121 · Madison County 20 declarations · rank 1666/3,266

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

  • DECL-HEAVY 20
  • MAJOR-HEAVY 85%
  • RANK-LOWER #1,666
  • PHOTO-FINISH Monona
  • NRI-LOW Very Low
  • ACT-HIGH High
  • TYPE-LEAD Flood
  • 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

Madison County in the declaration-count neighbourhood

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

declarations

What this shows Madison County carries 20 FEMA declaration records, ranked 1666 of 3,266 counties in this registry.

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

How Madison County's FEMA declaration count compares nationally

Madison County vs. all counties in this dataset

FEMA disaster declarations, all-time · Madison 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

Madison County's FEMA Risk Index score

0/100100/100Iowa avg40/10035.5/100
FEMA National Risk Index composite score vs. the Iowa county average

Which hazard drives modeled loss here?

FEMA's modeled annual dollar loss for Madison County is led by Riverine Flooding (about $3.9M Expected Annual Loss, Historical Loss Ratio Relatively High), while Drought 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 Madison County's hazard record show?

FEMA National Risk Index

FEMA's data shows an elevated National Risk Index composite of 35.5/100 for this county (Very Low rating). Expected Annual Loss comes in at Very Low (roughly $10.3M in annualized losses). Social vulnerability (Relatively Moderate) and community resilience (Very High) both factor into how that raw exposure plays out on the ground. Of the 18 hazards FEMA models, Drought stands out as the sharpest exposure here, rated Relatively High. FEMA's modeled frequency puts that hazard at 7.7 modeled event-days per year here, based on 266 historical events on record.

Reading the federal records together

This county has a small entry in FEMA's NFIP paid-claims table: 7 claims and $98.9K 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. Madison 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.

66 /100

Historical Activity Index

High historical activity

Madison 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
21/25

17 of 20 declarations are major disasters (85%)

Hazard Diversity Very High
18/20

7 different disaster types declared in Madison County

FEMA NRI 8-hazard radar - Madison County

Madison County NRI risk profile 8-axis FEMA National Risk Index radar showing per-hazard scores for Earthquake 8, Flood 25, Hurricane 8, Tornado 25, Wildfire 8, Drought 70, Heat Wave 25, Winter Storm 25. The simple mean of these eight displayed scores is 24 of 100. Earthquake Flood Hurricane Tornado Wildfire Drought Heat Wave Winter Storm 24 8-hazard mean
Madison County NRI risk profile FIPS 19121 · displayed-hazard mean 24/100
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

85%

Mostly major

NRI risk score

36

Very Low

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

How often does each hazard strike Madison 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
Drought Relatively High 7.7 modeled event-days per year
Landslide Relatively Low roughly once every 4 years
Hail Relatively Low an average of 6.2 times per year
Strong Wind Relatively Moderate an average of 5.6 times per year
Wildfire Very Low roughly once every 1,076 years
Ice Storm Relatively Low roughly once every 1 years
Tornado Relatively Low roughly once every 2 years
Heat Wave Relatively Low 7.4 modeled event-days per year
Winter Weather Relatively Low an average of 13 times per year
Cold Wave Relatively Low an average of 5.3 times per year
Riverine Flooding Relatively Low an average of 1.4 times per year
Lightning Relatively Low an average of 45 times per year
Earthquake Very Low roughly once every 1,645 years
Hurricane Very Low roughly once every 178 years

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

Disaster Types

Flood 8
Severe Storm 5
Biological 2
Severe Ice Storm 2
Hurricane 1
Snowstorm 1
Tornado 1

What Flood declarations mean here

Flood is the most frequent declaration type on Madison County's record, 40% of its declarations. Federal flood declarations cover two mechanisms that behave very differently: riverine flooding, which builds over days as a watershed drains and is usually forecast well in advance, and flash flooding, which can arrive in under an hour from rainfall that fell somewhere upstream.

Flood is also the one hazard class where a second federal dataset exists for the same events. The National Flood Insurance Program records what was actually paid on insured losses, so it measures a narrower thing than the declaration count: uninsured damage, and flooding outside mapped special flood hazard areas, never enters it. Reading the two together is more informative than either alone.

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 - 17 85.0%

of all 20 declarations

Emergency - 3 15.0%

of all 20 declarations

FEMA Declarations Timeline

Year Declarations
2020 2
2019 1
2010 2
2008 2
2005 1
2004 1
1998 2
1996 1
1993 2
1992 1
1990 1
1979 1
1974 1
1973 1
1972 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
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
1930 SEVERE STORMS, FLOODING, AND TORNADOES DR Severe Storm 2010-07-29
1880 SEVERE WINTER STORM DR Severe Storm 2010-03-02
1763 SEVERE STORMS, TORNADOES, AND FLOODING DR Severe Storm 2008-05-27
1737 SEVERE WINTER STORM DR Severe Ice Storm 2008-01-04
3239 HURRICANE KATRINA EVACUATION EM Hurricane 2005-09-10
1518 SEVERE STORMS, TORNADOES, AND FLOODING DR Severe Storm 2004-05-25
1230 SEVERE STORMS, TORNADOES AND FLOODING DR Flood 1998-07-02
1191 SEVERE SNOWSTORMS DR Snowstorm 1997-11-20
1121 SEVERE STORMS AND FLOODING DR Severe Storm 1996-06-24
996 SEVERE STORMS & FLOODING DR Flood 1993-07-09
965 SEVERE STORMS & FLOODING DR Flood 1992-10-02
928 ICE STORM DR Severe Ice Storm 1991-12-26
868 SEVERE STORMS & FLOODING DR Flood 1990-05-26
3076 SEVERE STORMS & TORNADOES EM Tornado 1979-04-06
443 SEVERE STORMS & FLOODING DR Flood 1974-06-24
386 SEVERE STORMS & FLOODING DR Flood 1973-05-23
354 SEVERE STORMS & FLOODING DR Flood 1972-09-26

Storm Events in Iowa

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

7

Total Paid

$98.9K

Avg Per Claim

$14.1K

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

FEMA National Risk Index

Overall Risk

Very Low

Score: 35.5/100

Expected Annual Loss

Very Low

$10.3M/year

Social Vulnerability

Relatively Moderate

Community Resilience

Very High

Hazard Risk Breakdown

Drought Relatively High
Landslide Relatively Low
Hail Relatively Low
Strong Wind Relatively Moderate
Wildfire Very Low
Ice Storm Relatively Low
Tornado Relatively Low
Heat Wave Relatively Low
Winter Weather Relatively Low
Cold Wave Relatively Low
Riverine Flooding Relatively Low
Lightning Relatively Low
Earthquake Very Low
Hurricane Very Low

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: Drought

Drought is the slowest of the modeled hazards and the least visible: it does its damage to agriculture, water supply and soil over seasons rather than hours, so it rarely produces the kind of single-day damage that drives a disaster declaration. FEMA scores it in event-days per year rather than discrete events for exactly that reason.

Worth noting for Madison County: the model and the federal record do NOT point at the same hazard. Drought carries the highest modeled rating (Relatively High), while the county's declaration history is led by Flood. That is not a contradiction, the two measure genuinely different things. Declarations record federal ACTION, which requires damage costly enough to exceed state and local capacity; the Risk Index models EXPECTED annual loss across all 18 hazards whether or not any declaration ever followed. A hazard can be the county's largest modeled exposure and never once have driven a declaration.

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

Madison County's closest FEMA peer: Kiowa County, KS

Comparisons use published FEMA declaration fields plus the National Risk Index composite for Madison 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 Madison County - capture-dated entries only.

Compare beyond this state

Nationwide peers by NRI score & FEMA declaration volume

Two PlainHazard-derived comparison paths for Madison 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, Madison 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 Madison County?
The most common disaster type in Madison County is Flood, with 8 declarations. Other disaster types include Severe Storm (5), Biological (2), Severe Ice Storm (2).
How does Madison County's FEMA declaration record compare with the Iowa average?
FEMA lists 20 declaration records for Madison 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 Madison County received?
Madison County has received 17 major disaster declarations, representing 85% of all 20 disaster declarations.
How many flood insurance claims has Madison County filed?
Madison County has 7 National Flood Insurance Program (NFIP) claims totaling $98.9K in payments, with an average of $14.1K per claim.
Does FEMA's top risk-rated hazard match the highest Expected Annual Loss in Madison County?
No. In Madison County, Drought has the highest National Risk Index rating (Relatively High), while Riverine Flooding leads Expected Annual Loss at about $3.9M. FEMA's risk score and dollar-loss model use different inputs, so the leaders often differ.
What was the worst year for disasters in Madison County?
The most active year for disaster declarations in Madison County was 1993, with 2 declarations. The county has FEMA disaster data spanning 1972 to 2020.
What is the FEMA National Risk Index score for Madison County?
According to the FEMA National Risk Index, Madison County, Iowa has an overall risk score of 35.5 out of 100 (Very Low). The county's social vulnerability rating is Relatively Moderate and community resilience is Very High. The Expected Annual Loss (EAL) score is Very Low, representing $10.3M in annualized losses.
Which natural hazard poses the greatest risk to Madison County?
Based on FEMA NRI data, the highest-risk natural hazard in Madison County as of the latest release is Drought (risk rating: Relatively High). Other significant hazards include Landslide (Relatively Low) and Hail (Relatively Low). FEMA's modeled event frequency puts drought here at 7.7 modeled event-days per year, drawn from 266 historical events on record. These scores are based on FEMA's analysis of historical event frequency, 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 Madison County · vintage 2026-08-25 · Methodology · Iowa profile · Verify with FEMA OpenFEMA · Verify with NOAA Storm Events