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Kansas · FEMA + NOAA + National Risk Index

Decatur County, KS

11 FEMA disaster declarations (2004-2020), with a FEMA National Risk Index rating of Very Low. Most common hazard: Severe Storm.

11
FEMA declarations
8
Major disasters
11
NRI risk · Very Low
Severe Storm
Top hazard

The verdict

Decatur County has a nationally busy FEMA history: 11 declarations, more than 12% of counties in this registry. But the state comparison tempers that reading: the total is 39% below the Kansas county mean. FEMA's separate National Risk Index places the county safer than 11%; that score models loss and vulnerability rather than counting declarations.

Safer than 11%
of U.S. counties for FEMA National Risk Index score
Very Low
FEMA National Risk Index rating
11
FEMA declarations vs 21 national county avg
7
severe storm declarations, the most common hazard here

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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How does Decatur County compare?

Decatur County vs. all counties in this dataset

FEMA disaster declarations, all-time

11 12th percentile higher than 12% 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 · 2026-08-03

Decatur County's FEMA Risk Index score

FEMA National Risk Index composite score vs. the Kansas county average

0/100100/100Kansas avg30/10011.3/100
FEMA National Risk Index composite score vs. the Kansas county average

What does Decatur County's hazard record show?

Declaration frequency

Nationally, Decatur County's 11 FEMA records form a high-volume history; within Kansas, however, the count is 39% below the county mean. 8 entries carry the Major Disaster classification. The largest incident group is Severe Storm, appearing 7 times. The full 16-year record averages 0.7 declarations annually. A DR label alone does not say whether Individual Assistance, Public Assistance, or both followed.

FEMA National Risk Index

FEMA's National Risk Index places this county in the low end of the national distribution, composite score 11.3/100 (Very Low). Expected Annual Loss is rated Very Low (roughly $5.7M in annualized losses). Two modifiers shape how that exposure becomes real-world harm here: social vulnerability (Relatively Low) and community resilience (Relatively Low). Among the 18 modeled hazards, Hail carries the county's highest rating, a mid-range Relatively Moderate. FEMA's modeled frequency puts that hazard at an average of 8.3 times per year here, based on 315 historical events on record.

Reading the federal records together

No paid-claim row for this county appears in the NFIP county table used by PlainHazard. That absence is not evidence that flooding never occurred: the register observes claims under federal flood-insurance policies, not uninsured losses, emergency reports, or every flood outside the program. The FEMA declaration history below is therefore the available federal-action record on this page.

Start with the state benchmark: a Kansas county averages 18.0 federal declaration records, while Decatur County has 11. The gap is 39% below that mean. Fewer entries indicate a quieter history of recorded federal actions, not immunity from a hazard and not a prediction about what happens next.

44 /100

Historical Activity Index

Moderate historical activity

Decatur County, KS · 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
8/30

11 OpenFEMA declarations, full ingest window (0.5x national county average)

County Disaster Density Moderate
8/25

11 declarations (0.6x state county average of 18)

Major Disaster Share High
18/25

8 of 11 declarations are major disasters (73%)

Hazard Diversity High
10/20

4 different disaster types declared in Decatur County

Historical Declaration Activity

Activity Band

High

vs. Kansas Avg

-39%

State avg: 18.0

vs. National Avg

-47%

National avg: 20.7

Avg Per Year

0.7

Over 16 years

FEMA NRI 8-hazard radar - Decatur County

Decatur County NRI risk profile 8-axis FEMA National Risk Index radar showing per-hazard scores for Earthquake 8, Flood 8, Hurricane 0, Tornado 25, Wildfire 8, Drought 48, Heat Wave 8, Winter Storm 25. The simple mean of these eight displayed scores is 16 of 100. Earthquake Flood Hurricane Tornado Wildfire Drought Heat Wave Winter Storm 16 8-hazard mean
Decatur County NRI risk profile FIPS 20039 · displayed-hazard mean 16/100
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

11

Low volume

Major Disaster share

73%

Major-heavy

NRI risk score

11

Very Low

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

How often does each hazard strike Decatur 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
Hail Relatively Moderate an average of 8.3 times per year
Drought Relatively Moderate 88 modeled event-days per year
Strong Wind Relatively Moderate an average of 4.5 times per year
Winter Weather Relatively Low an average of 13 times per year
Ice Storm Relatively Low roughly once every 3 years
Wildfire Very Low roughly once every 4,145 years
Tornado Relatively Low roughly once every 1 years
Cold Wave Very Low an average of 5.2 times per year
Lightning Very Low an average of 44 times per year
Heat Wave Very Low 3.9 modeled event-days per year
Landslide Very Low roughly once every 4 years
Earthquake Very Low roughly once every 2,646 years
Riverine Flooding Very Low roughly once every 2 years

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

Disaster Types

Severe Storm 7
Biological 2
Snowstorm 1
Hurricane 1

What Severe Storm declarations mean here

Severe Storm is the most frequent declaration type on Decatur County's record, 64% 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 - 8 72.7%

of all 11 declarations

Emergency - 3 27.3%

of all 11 declarations

FEMA Declarations Timeline

Year Declarations
2020 2
2017 1
2010 2
2008 2
2007 1
2006 1
2005 1
2004 1

Disaster Declarations

How the 11 FEMA declarations break into federal action codes (DR / EM / FM). Same DISTINCT grain as the table below.

Download these 11 declarations as CSV . FEMA source data is public domain; our derived presentation is CC0.

DR# Title Type Incident Date
4504 COVID-19 PANDEMIC DR Biological 2020-03-29
3481 COVID-19 EM Biological 2020-03-13
4319 SEVERE WINTER STORM, SNOWSTORM, STRAIGHT-LINE WINDS, AND FLOODING DR Snowstorm 2017-06-16
1932 SEVERE STORMS, FLOODING, AND TORNADOES DR Severe Storm 2010-08-10
1885 SEVERE WINTER STORMS AND SNOWSTORM DR Severe Storm 2010-03-09
1776 SEVERE STORMS, FLOODING AND TORNADOES DR Severe Storm 2008-07-09
3282 SEVERE WINTER STORMS EM Severe Storm 2007-12-12
1675 SEVERE WINTER STORM DR Severe Storm 2007-01-07
1626 SEVERE WINTER STORM DR Severe Storm 2006-01-26
3236 HURRICANE KATRINA EVACUATION EM Hurricane 2005-09-10
1535 SEVERE STORMS, FLOODING, AND TORNADOES DR Severe Storm 2004-08-03

Storm Events in Kansas

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

Storm Type Events Fatalities Injuries Property Damage
Hail 8,265 0 9 $24.2M
Thunderstorm Wind 7,987 3 34 $30.6M
High Wind 1,553 1 7 $10.2M
Drought 1,272 0 0 $0
Flash Flood 1,037 6 9 $35.9M

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

FEMA National Risk Index

Overall Risk

Very Low

Score: 11.3/100

Expected Annual Loss

Very Low

$5.7M/year

Social Vulnerability

Relatively Low

Community Resilience

Relatively Low

Hazard Risk Breakdown

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

Hail is among the most expensive hazards in the model relative to how little it threatens life. It concentrates on roofs, vehicles and crops, and a single severe storm can generate an insurance loss across a metropolitan area without a single injury.

For Decatur County the two measures on this page point the same way: Hail is the county's highest-rated modeled hazard (Relatively Moderate), 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

Decatur County's closest FEMA peer: Outagamie County, WI

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

Further reading for this county

Most disaster-prone counties

With 11 FEMA declarations, Decatur 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 Decatur County?
The most common disaster type in Decatur County is Severe Storm, with 7 declarations. Other disaster types include Biological (2), Snowstorm (1), Hurricane (1).
How does Decatur County's FEMA declaration record compare with the Kansas average?
The typical Kansas county has 18.0 FEMA declaration records; Decatur County has 11, or 39% fewer. Against the national county mean of 20.7, this county's total is 47% lower. The comparison is historical and says nothing about the probability of a future event.
How many major FEMA disaster declarations has Decatur County received?
Decatur County has received 8 major disaster declarations, representing 73% of all 11 disaster declarations.
What was the worst year for disasters in Decatur County?
The most active year for disaster declarations in Decatur County was 2008, with 2 declarations. The county has FEMA disaster data spanning 2004 to 2020.
What is the FEMA National Risk Index score for Decatur County?
According to the FEMA National Risk Index, Decatur County, Kansas has an overall risk score of 11.3 out of 100 (Very Low). The county's social vulnerability rating is Relatively Low and community resilience is Relatively Low. The Expected Annual Loss (EAL) score is Very Low, representing $5.7M in annualized losses.
Which natural hazard poses the greatest risk to Decatur County?
FEMA's NRI data points to Decatur County as of the latest release is Hail (risk rating: Relatively Moderate). Other significant hazards include Drought (Relatively Moderate) and Strong Wind (Relatively Moderate). FEMA's modeled event frequency puts hail here at an average of 8.3 times per year, drawn from 315 historical events on record. FEMA derives these ratings from historical event frequency, the assets exposed, and the community's vulnerability profile.
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.

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.

What this means for Decatur County

Against a Kansas county mean of 18 declarations, Decatur County, KS records 11, or 39% fewer. PlainHazard classifies that historical total as high activity.

  • Major Disaster is the largest group (8 of 11) in a declaration history that remains below its state benchmark; frequency here is not a forecast. Kansas overview
  • Nationally the county exceeds 12% of recorded county totals, but its own Kansas benchmark is higher. The ranking keeps those two contexts separate. Most-disaster rankings
  • With no NFIP county row, the declaration register and modeled NRI remain distinct evidence rather than substitutes for a claims history. Disaster-data guide

A below-average federal record is not a safety guarantee. Use National Weather Service alerts and local emergency-management notices for present conditions, not this historical comparison.

All federal data sources used on this page
Data sourced from official public datasets. See our methodology for details. Retrieved and formatted by PlainHazard Editorial

Verify with FEMA → · Verify with FEMA NRI → · Verify with NOAA →

Every figure on PlainHazard is rendered directly from FEMA federal disaster data, no number is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or national statistics report, the data & editorial changelog, or report a data error.