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Missouri · FEMA + NOAA + National Risk Index

DeKalb County, MO

22 FEMA disaster declarations (1965-2020), with a FEMA National Risk Index rating of Very Low. Most common hazard: Severe Storm.

22
FEMA declarations
16
Major disasters
16
NRI risk · Very Low
Severe Storm
Top hazard

The verdict

DeKalb County has a nationally busy FEMA history: 22 declarations, more than 57% of counties in this registry. But the state comparison tempers that reading: the total is 11% below the Missouri county mean. FEMA's separate National Risk Index places the county safer than 16%; that score models loss and vulnerability rather than counting declarations.

Safer than 16%
of U.S. counties for FEMA National Risk Index score
Very Low
FEMA National Risk Index rating
22
FEMA declarations vs 21 national county avg
6
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 29063 · DeKalb County 22 declarations · rank 1300/3,266

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

  • DECL-HEAVY 22
  • MAJOR-MID 73%
  • RANK-LOWER #1,300
  • PHOTO-FINISH Hardy
  • NRI-LOW Very Low
  • ACT-HIGH High
  • TYPE-LEAD Severe Storm
  • VS-ST-BELOW -11%

Nearest declaration peer: Hardy, WV (0 declaration gap)

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

DeKalb County in the declaration-count neighbourhood

FEMA declaration records among this county and nearest peers

declarations

What this shows DeKalb County carries 22 FEMA declaration records, ranked 1300 of 3,266 counties in this registry.

Source FEMA OpenFEMA Disaster Declarations Summaries v2 As of 2026-08-03

How does DeKalb County compare?

DeKalb County vs. all counties in this dataset

FEMA disaster declarations, all-time

22 Top 43% higher than 57% 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

DeKalb County's FEMA Risk Index score

0/100100/100Missouri avg51/10016/100
FEMA National Risk Index composite score vs. the Missouri county average

Which hazard drives modeled loss here?

FEMA's modeled annual dollar loss for DeKalb County is led by Riverine Flooding (about $3.1M Expected Annual Loss, Historical Loss Ratio Relatively High), while Drought carries the highest National Risk Index rating (Relatively Moderate). 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 DeKalb County's hazard record show?

FEMA National Risk Index

This county's FEMA National Risk Index composite lands at 16.0/100 (Very Low), a modest reading against the rest of the country. Expected Annual Loss is rated Very Low (roughly $7.7M in annualized losses), tempered or compounded by a Very Low social-vulnerability score and Relatively Moderate community-resilience score. Among the 18 modeled hazards, Drought carries the county's highest rating, a mid-range Relatively Moderate. FEMA's modeled frequency puts that hazard at 22 modeled event-days per year here, based on 567 historical events on record.

Reading the federal records together

This county has a small entry in FEMA's NFIP paid-claims table: 6 claims and $99.1K 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.

Start with the state benchmark: a Missouri county averages 24.6 federal declaration records, while DeKalb County has 22. The gap is 11% 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.

60 /100

Historical Activity Index

High historical activity

DeKalb County, MO · 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) High
16/30

22 OpenFEMA declarations, full ingest window (1.1x national county average)

County Disaster Density Moderate
11/25

22 declarations (0.9x state county average of 25)

Major Disaster Share High
18/25

16 of 22 declarations are major disasters (73%)

Hazard Diversity Very High
15/20

6 different disaster types declared in DeKalb County

FEMA NRI 8-hazard radar - DeKalb County

DeKalb 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 25, 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
DeKalb County NRI risk profile FIPS 29063 · 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

22

Above median

Major Disaster share

73%

Major-heavy

NRI risk score

16

Very Low

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

How often does each hazard strike DeKalb 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 Moderate 22 modeled event-days per year
Tornado Relatively Low roughly once every 4 years
Hail Relatively Low an average of 6.4 times per year
Landslide Very Low roughly once every 9 years
Wildfire Very Low roughly once every 1,185 years
Heat Wave Relatively Low 9.9 modeled event-days per year
Cold Wave Relatively Low an average of 3.8 times per year
Ice Storm Relatively Low roughly once every 2 years
Strong Wind Relatively Low an average of 4.7 times per year
Earthquake Very Low roughly once every 1,085 years
Riverine Flooding Very Low roughly once every 2 years
Winter Weather Very Low an average of 11 times per year
Lightning Very Low an average of 47 times per year
Hurricane No Rating roughly once every 219 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
Severe Ice Storm 4
Flood 4
Biological 2
Hurricane 1
Drought 1

What Severe Storm declarations mean here

Severe Storm is the most frequent declaration type on DeKalb County's record, 45% 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 - 16 72.7%

of all 22 declarations

Emergency - 6 27.3%

of all 22 declarations

FEMA Declarations Timeline

Year Declarations
2020 2
2015 1
2011 2
2010 1
2009 1
2008 2
2007 1
2005 1
2004 1
2002 2
1999 1
1995 1
1993 1
1984 1
1976 1
Show 3 earlier declaration years
1974 1
1973 1
1965 1

Disaster Declarations

How the 22 FEMA declarations break into federal action codes (DR / EM / FM). Same DISTINCT grain as the table below.

Download these 22 declarations as CSV . FEMA source data is public domain; our derived presentation is CC0.

DR# Title Type Incident Date
4490 COVID-19 PANDEMIC DR Biological 2020-03-26
3482 COVID-19 EM Biological 2020-03-13
4238 SEVERE STORMS, TORNADOES, STRAIGHT-LINE WINDS, AND FLOODING DR Severe Storm 2015-08-07
1961 SEVERE WINTER STORM AND SNOWSTORM DR Severe Storm 2011-03-23
3317 SEVERE WINTER STORM EM Severe Storm 2011-02-03
1934 SEVERE STORMS, FLOODING, AND TORNADOES DR Severe Storm 2010-08-17
3303 SEVERE WINTER STORM EM Severe Ice Storm 2009-01-30
1736 SEVERE WINTER STORMS DR Severe Ice Storm 2007-12-27
3281 SEVERE WINTER STORMS EM Severe Ice Storm 2007-12-12
1708 SEVERE STORMS AND FLOODING DR Severe Storm 2007-06-11
3232 HURRICANE KATRINA EVACUATION EM Hurricane 2005-09-10
1524 SEVERE STORMS, TORNADOES, AND FLOODING DR Severe Storm 2004-06-11
1412 SEVERE STORMS, TORNADOES AND FLOODING DR Severe Storm 2002-05-06
1403 SEVERE WINTER ICE STORM DR Severe Ice Storm 2002-02-06
1253 SEVERE STORMS, FLOODING AND TORNADOES DR Severe Storm 1998-10-14
1054 SEVERE STORMS, TORNADOES, HAIL, FLOODING DR Severe Storm 1995-06-02
995 SEVERE STORMS & FLOODING DR Flood 1993-07-09
713 SEVERE STORMS & FLOODING DR Flood 1984-06-21
3017 DROUGHT EM Drought 1976-09-24
407 SEVERE STORMS & FLOODING DR Flood 1973-11-01
Show 2 earlier declaration records
DR# Title Type Incident Date
372 HEAVY RAINS, TORNADOES & FLOODING DR Severe Storm 1973-04-19
203 SEVERE STORMS & FLOODING DR Flood 1965-07-27

Storm Events in Missouri

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

Storm Type Events Fatalities Injuries Property Damage
Thunderstorm Wind 6,391 30 52 $63.4M
Hail 4,411 0 1 $86.1M
Flash Flood 2,399 47 14 $406.6M
Flood 1,810 25 7 $304.6M
Drought 1,033 0 350 $53.6M

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

NFIP Flood Insurance Claims

Total Claims

6

Total Paid

$99.1K

Avg Per Claim

$16.5K

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

FEMA National Risk Index

Overall Risk

Very Low

Score: 16.0/100

Expected Annual Loss

Very Low

$7.7M/year

Social Vulnerability

Very Low

Community Resilience

Relatively Moderate

Hazard Risk Breakdown

Drought Relatively Moderate
Tornado Relatively Low
Hail Relatively Low
Landslide Very Low
Wildfire Very Low
Heat Wave Relatively Low
Cold Wave Relatively Low
Ice Storm Relatively Low
Strong Wind Relatively Low
Earthquake Very Low
Riverine Flooding Very Low
Winter Weather Very Low
Lightning 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: 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 DeKalb County: the model and the federal record do NOT point at the same hazard. Drought carries the highest modeled rating (Relatively Moderate), while the county's declaration history is led by Severe Storm. 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

DeKalb County's closest FEMA peer: Randolph County, WV

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

Compare beyond this state

Nationwide peers by NRI score & FEMA declaration volume

Two PlainHazard-derived comparison paths for DeKalb 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 22 FEMA declarations, DeKalb 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 DeKalb County?
The most common disaster type in DeKalb County is Severe Storm, with 10 declarations. Other disaster types include Severe Ice Storm (4), Flood (4), Biological (2).
How does DeKalb County's FEMA declaration record compare with the Missouri average?
The typical Missouri county has 24.6 FEMA declaration records; DeKalb County has 22, or 11% fewer. Against the national county mean of 20.7, this county's total is 6% higher. The comparison is historical and says nothing about the probability of a future event.
How many major FEMA disaster declarations has DeKalb County received?
DeKalb County has received 16 major disaster declarations, representing 73% of all 22 disaster declarations.
How many flood insurance claims has DeKalb County filed?
DeKalb County has 6 National Flood Insurance Program (NFIP) claims totaling $99.1K in payments, with an average of $16.5K per claim.
Does FEMA's top risk-rated hazard match the highest Expected Annual Loss in DeKalb County?
No. In DeKalb County, Drought has the highest National Risk Index rating (Relatively Moderate), while Riverine Flooding leads Expected Annual Loss at about $3.1M. FEMA's risk score and dollar-loss model use different inputs, so the leaders often differ.
What was the worst year for disasters in DeKalb County?
The most active year for disaster declarations in DeKalb County was 2002, with 2 declarations. The county has FEMA disaster data spanning 1965 to 2020.
What is the FEMA National Risk Index score for DeKalb County?
According to the FEMA National Risk Index, DeKalb County, Missouri has an overall risk score of 16.0 out of 100 (Very Low). The county's social vulnerability rating is Very Low and community resilience is Relatively Moderate. The Expected Annual Loss (EAL) score is Very Low, representing $7.7M in annualized losses.
Which natural hazard poses the greatest risk to DeKalb County?
The top hazard flagged by FEMA's NRI for DeKalb County as of the latest release is Drought (risk rating: Relatively Moderate). Other significant hazards include Tornado (Relatively Low) and Hail (Relatively Low). FEMA's modeled event frequency puts drought here at 22 modeled event-days per year, drawn from 567 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.

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

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.