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Iowa · FEMA + NOAA + National Risk Index

Greene County, IA

19 FEMA disaster declarations (1969-2022), with a FEMA National Risk Index rating of Very Low. Most common hazard: Severe Storm.

19
FEMA declarations
16
Major disasters
32
NRI risk · Very Low
Severe Storm
Top hazard

The verdict

Greene County has a nationally busy FEMA history: 19 declarations, more than 41% of counties in this registry. But the state comparison tempers that reading: the total is 2% below the Iowa county mean. FEMA's separate National Risk Index places the county safer than 32%; that score models loss and vulnerability rather than counting declarations.

Safer than 32%
of U.S. counties for FEMA National Risk Index score
Very Low
FEMA National Risk Index rating
19
FEMA declarations vs 21 national county avg
4
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 19073 · Greene County 19 declarations · rank 1791/3,266

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

  • DECL-MID 19
  • MAJOR-HEAVY 84%
  • RANK-LOWER #1,791
  • PHOTO-FINISH Bartow
  • NRI-LOW Very Low
  • ACT-HIGH High
  • TYPE-LEAD Severe Storm
  • VS-ST-BELOW -2%

Nearest declaration peer: Bartow, GA (0 declaration gap)

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

Greene County in the declaration-count neighbourhood

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

declarations

What this shows Greene County carries 19 FEMA declaration records, ranked 1791 of 3,266 counties in this registry.

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

How Greene County's FEMA declaration count compares nationally

Greene County vs. all counties in this dataset

FEMA disaster declarations, all-time · Greene County

19 41st percentile higher than 41% 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

Greene County's FEMA Risk Index score

0/100100/100Iowa avg40/10031.8/100
FEMA National Risk Index composite score vs. the Iowa county average

What does Greene County's hazard record show?

FEMA National Risk Index

FEMA's data shows an elevated National Risk Index composite of 31.8/100 for this county (Very Low rating). Expected Annual Loss comes in at Very Low (roughly $12.2M in annualized losses). Social vulnerability (Relatively Low) 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 15 modeled event-days per year here, based on 392 historical events on record.

Reading the federal records together

This county has a small entry in FEMA's NFIP paid-claims table: 4 claims and $6.0K 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 Iowa county averages 19.3 federal declaration records, while Greene County has 19. The gap is 2% 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.

62 /100

Historical Activity Index

High historical activity

Greene 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

19 OpenFEMA declarations, full ingest window (0.9x national county average)

County Disaster Density Moderate
12/25

19 declarations (1.0x state county average of 19)

Major Disaster Share Very High
21/25

16 of 19 declarations are major disasters (84%)

Hazard Diversity Very High
15/20

6 different disaster types declared in Greene County

FEMA NRI 8-hazard radar - Greene County

Greene County NRI risk profile 8-axis FEMA National Risk Index radar showing per-hazard scores for Earthquake 8, Flood 8, Hurricane 8, Tornado 48, Wildfire 8, Drought 70, Heat Wave 8, Winter Storm 48. The simple mean of these eight displayed scores is 26 of 100. Earthquake Flood Hurricane Tornado Wildfire Drought Heat Wave Winter Storm 26 8-hazard mean
Greene County NRI risk profile FIPS 19073 · displayed-hazard mean 26/100
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

19

Below median

Major Disaster share

84%

Mostly major

NRI risk score

32

Very Low

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

How often does each hazard strike Greene 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 15 modeled event-days per year
Cold Wave Relatively Moderate an average of 7.9 times per year
Tornado Relatively Moderate roughly once every 2 years
Hail Relatively Low an average of 6.1 times per year
Winter Weather Relatively Low an average of 15 times per year
Ice Storm Relatively Low roughly once every 2 years
Strong Wind Relatively Low an average of 5.6 times per year
Landslide Very Low roughly once every 14 years
Heat Wave Very Low 5.5 modeled event-days per year
Hurricane Very Low roughly once every 100 years
Riverine Flooding Very Low an average of 1.9 times per year
Earthquake Very Low roughly once every 1,779 years
Wildfire Very Low roughly once every 6,240 years
Lightning Very Low an average of 44 times per year

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

Disaster Types

Severe Storm 7
Flood 7
Biological 2
Snowstorm 1
Hurricane 1
Severe Ice Storm 1

What Severe Storm declarations mean here

Severe Storm is the most frequent declaration type on Greene County's record, 37% 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 84.2%

of all 19 declarations

Emergency - 3 15.8%

of all 19 declarations

FEMA Declarations Timeline

Year Declarations
2022 1
2020 3
2019 1
2013 1
2010 1
2008 1
2007 2
2005 1
2004 1
1998 1
1993 1
1992 1
1991 1
1990 1
1974 1
Show 1 earlier declaration years
1969 1

Disaster Declarations

How the 19 FEMA declarations break into federal action codes (DR / EM / FM). Same DISTINCT grain as the table below.

Download these 19 declarations as CSV . FEMA source data is public domain; our derived presentation is CC0.

DR# Title Type Incident Date
4642 SEVERE STORMS, STRAIGHT-LINE WINDS, AND TORNADOES DR Severe Storm 2022-02-23
4557 SEVERE STORMS DR Severe Storm 2020-08-17
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
4126 SEVERE STORMS, TORNADOES, AND FLOODING DR Severe Storm 2013-07-02
1880 SEVERE WINTER STORM DR Severe Storm 2010-03-02
1763 SEVERE STORMS, TORNADOES, AND FLOODING DR Severe Storm 2008-05-27
3275 SNOW EM Snowstorm 2007-03-30
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
1230 SEVERE STORMS, TORNADOES AND FLOODING DR Flood 1998-07-02
996 SEVERE STORMS & FLOODING DR Flood 1993-07-09
928 ICE STORM DR Severe Ice Storm 1991-12-26
911 SEVERE STORMS & FLOODING DR Flood 1991-07-12
868 SEVERE STORMS & FLOODING DR Flood 1990-05-26
443 SEVERE STORMS & FLOODING DR Flood 1974-06-24
259 FLOODING DR Flood 1969-04-25

Storm Events in Iowa

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

4

Total Paid

$6.0K

Avg Per Claim

$1.5K

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

FEMA National Risk Index

Overall Risk

Very Low

Score: 31.8/100

Expected Annual Loss

Very Low

$12.2M/year

Social Vulnerability

Relatively Low

Community Resilience

Very High

Hazard Risk Breakdown

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

Greene County's closest FEMA peer: Brown County, SD

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

Compare beyond this state

Nationwide peers by NRI score & FEMA declaration volume

Two PlainHazard-derived comparison paths for Greene 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 19 FEMA declarations, Greene 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 Greene County?
The most common disaster type in Greene County is Severe Storm, with 7 declarations. Other disaster types include Flood (7), Biological (2), Snowstorm (1).
How does Greene County's FEMA declaration record compare with the Iowa average?
The typical Iowa county has 19.3 FEMA declaration records; Greene County has 19, or 2% fewer. Against the national county mean of 20.7, this county's total is 8% lower. The comparison is historical and says nothing about the probability of a future event.
How many major FEMA disaster declarations has Greene County received?
Greene County has received 16 major disaster declarations, representing 84% of all 19 disaster declarations.
How many flood insurance claims has Greene County filed?
Greene County has 4 National Flood Insurance Program (NFIP) claims totaling $6.0K in payments, with an average of $1.5K per claim.
What was the worst year for disasters in Greene County?
The most active year for disaster declarations in Greene County was 2020, with 3 declarations. The county has FEMA disaster data spanning 1969 to 2022.
What is the FEMA National Risk Index score for Greene County?
According to the FEMA National Risk Index, Greene County, Iowa has an overall risk score of 31.8 out of 100 (Very Low). On social vulnerability the county rates Relatively Low; on community resilience, Very High. The Expected Annual Loss (EAL) score is Very Low, representing $12.2M in annualized losses.
Which natural hazard poses the greatest risk to Greene County?
FEMA's NRI data points to Greene County is Drought (risk rating: Relatively High). Other significant hazards include Cold Wave (Relatively Moderate) and Tornado (Relatively Moderate). FEMA's modeled event frequency puts drought here at 15 modeled event-days per year, drawn from 392 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.

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 Greene County · vintage 2026-08-25 · Methodology · Iowa profile · Verify with FEMA OpenFEMA · Verify with NOAA Storm Events