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Illinois · FEMA + NOAA + National Risk Index

Greene County, IL

19 FEMA disaster declarations (1973-2020), with a FEMA National Risk Index rating of Very Low. Most common hazard: Severe Storm.

19
FEMA declarations
16
Major disasters
13
NRI risk · Very Low
Severe Storm
Top hazard

The verdict

Two federal records point in the busier direction for Greene County. Its 19 FEMA declarations are 48% above the Illinois county mean and exceed the count for 41% of the 3,266 counties in this registry. Separately, FEMA's National Risk Index places it safer than 13%, based on modeled expected annual loss, social vulnerability, and community resilience.

Safer than 13%
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
77
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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How does Greene County compare?

Greene County vs. all counties in this dataset

FEMA disaster declarations, all-time

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 · 2026-08-03

Greene County's FEMA Risk Index score

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

0/100100/100Illinois avg55/10013/100
FEMA National Risk Index composite score vs. the Illinois county average

Which hazard drives modeled loss here?

FEMA's modeled annual dollar loss for Greene County is led by Riverine Flooding (about $1.8M Expected Annual Loss, Historical Loss Ratio Relatively High), while Landslide carries the highest National Risk Index rating (Relatively Low). 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 Greene County's hazard record show?

Reading the federal records together

The NFIP claims register shows a middle-volume loss record here: 77 paid claims, totaling $1.5M. PlainHazard uses 50-499 claims for this descriptive band; FEMA does not publish it as a safety or coverage category. The $19.7K average describes payments on recorded claims only, leaving uninsured damage and properties without a claim outside the measure.

The declaration register points in the busier direction. Greene County's 19 federal records stand 48% above the Illinois county mean of 12.9. 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.

Declaration frequency

The FEMA register is busy by both local and national comparisons. It contains 19 entries for Greene County, including 16 Major Disaster records, 48% above the Illinois county mean. Across the 47-year span, that works out to 0.4 declarations a year. Severe Storm leads the file with 8 entries. Declaration type records the federal action taken, not every assistance program approved.

FEMA National Risk Index

FEMA's National Risk Index places this county in the low end of the national distribution, composite score 13.0/100 (Very Low). Expected Annual Loss is rated Very Low (roughly $6.1M in annualized losses). Two modifiers shape how that exposure becomes real-world harm here: social vulnerability (Relatively Low) and community resilience (Relatively High). Even the county's top-rated hazard, Landslide, only reaches Relatively Low on FEMA's scale, none of the 18 modeled hazards stand out here. FEMA's modeled frequency puts that hazard at roughly once every 3 years here.

68 /100

Historical Activity Index

High historical activity

Greene County, IL · 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 High
18/25

19 declarations (1.5x state county average of 13)

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

Historical Declaration Activity

Activity Band

High

vs. Illinois Avg

+48%

State avg: 12.9

vs. National Avg

-8%

National avg: 20.7

Avg Per Year

0.4

Over 47 years

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 25, Wildfire 8, Drought 48, Heat Wave 25, Winter Storm 25. The simple mean of these eight displayed scores is 19 of 100. Earthquake Flood Hurricane Tornado Wildfire Drought Heat Wave Winter Storm 19 8-hazard mean
Greene County NRI risk profile FIPS 17061 · displayed-hazard mean 19/100
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

13

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
Landslide Relatively Low roughly once every 3 years
Drought Relatively Moderate 2.5 modeled event-days per year
Heat Wave Relatively Low 9.6 modeled event-days per year
Earthquake Very Low roughly once every 313 years
Cold Wave Relatively Low an average of 2.5 times per year
Strong Wind Relatively Low an average of 5.9 times per year
Hail Relatively Low an average of 4.7 times per year
Tornado Relatively Low roughly once every 2 years
Lightning Relatively Low an average of 48 times per year
Winter Weather Very Low an average of 8.8 times per year
Hurricane Very Low roughly once every 120 years
Ice Storm Very Low an average of 1.2 times per year
Riverine Flooding Very Low roughly once every 2 years
Wildfire Very Low roughly once every 14,450 years

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

Disaster Types

Severe Storm 8
Flood 6
Biological 2
Hurricane 1
Tornado 1
Snowstorm 1

What Severe Storm declarations mean here

Severe Storm is the most frequent declaration type on Greene County's record, 42% 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
2020 2
2019 1
2013 1
2009 1
2008 1
2006 1
2005 1
2003 1
2002 1
1999 1
1995 1
1994 1
1993 1
1985 1
1983 2
Show 2 earlier declaration years
1979 1
1973 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
4489 COVID-19 PANDEMIC DR Biological 2020-03-26
3435 COVID-19 EM Biological 2020-03-13
4461 SEVERE STORMS AND FLOODING DR Flood 2019-09-19
4116 SEVERE STORMS, STRAIGHT-LINE WINDS, AND FLOODING DR Flood 2013-05-10
1800 SEVERE STORMS AND FLOODING DR Severe Storm 2008-10-03
1771 SEVERE STORMS AND FLOODING DR Severe Storm 2008-06-24
1633 TORNADOES AND SEVERE STORMS DR Severe Storm 2006-03-28
3230 HURRICANE KATRINA EVACUATION EM Hurricane 2005-09-07
1469 SEVERE STORMS, TORNADOES, AND FLOODING DR Severe Storm 2003-05-15
1416 SEVERE STORMS, TORNADOES AND FLOODING DR Tornado 2002-05-21
3134 IL-WINTER STORM 1/1/99 EM Snowstorm 1999-01-08
1053 SEVERE STORMS AND FLOODING DR Severe Storm 1995-05-30
1025 SEVERE STORMS AND FLOODING DR Severe Storm 1994-04-26
997 SEVERE STORMS & FLOODING DR Flood 1993-07-09
735 SEVERE STORMS & FLOODING DR Flood 1985-03-29
684 SEVERE STORMS, TORNADOES & FLOODING DR Severe Storm 1983-06-06
674 SEVERE STORMS, TORNADOES & FLOODING DR Severe Storm 1982-12-13
583 SEVERE STORMS & FLOODING DR Flood 1979-04-30
373 SEVERE STORMS & FLOODING DR Flood 1973-04-26

Storm Events in Illinois

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

Storm Type Events Fatalities Injuries Property Damage
Thunderstorm Wind 7,218 9 67 $46.0M
Hail 3,195 0 0 $27.1M
Winter Weather 1,363 14 49 $1.8M
Flood 1,221 14 11 $84.3M
Flash Flood 1,133 11 3 $1.1B

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

NFIP Flood Insurance Claims

Total Claims

77

Total Paid

$1.5M

Avg Per Claim

$19.7K

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

FEMA National Risk Index

Overall Risk

Very Low

Score: 13.0/100

Expected Annual Loss

Very Low

$6.1M/year

Social Vulnerability

Relatively Low

Community Resilience

Relatively High

Hazard Risk Breakdown

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

Landslide risk is a function of slope, soil and water, so it is usually a SECOND-ORDER hazard: it is triggered by the rainfall, snowmelt, wildfire burn scars or seismic shaking that came first. That is why a county can carry high landslide exposure whose realized damage is recorded under a flood or storm declaration instead.

Worth noting for Greene County: the model and the federal record do NOT point at the same hazard. Landslide carries the highest modeled rating (Relatively Low), 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: Becker County, MN

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.

Further reading for this county

Understanding disaster data

Greene County's NFIP claims file (77 claims) and FEMA declaration history measure different federal records - this guide separates them from modeled NRI risk.

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 8 declarations. Other disaster types include Flood (6), Biological (2), Hurricane (1).
How does Greene County's FEMA declaration record compare with the Illinois average?
FEMA lists 19 declaration records for Greene County. That is 48% above the Illinois county mean of 12.9. Its count is also 8% 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 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 77 National Flood Insurance Program (NFIP) claims totaling $1.5M in payments, with an average of $19.7K per claim.
Does FEMA's top risk-rated hazard match the highest Expected Annual Loss in Greene County?
No. In Greene County, Landslide has the highest National Risk Index rating (Relatively Low), while Riverine Flooding leads Expected Annual Loss at about $1.8M. FEMA's risk score and dollar-loss model use different inputs, so the leaders often differ.
What was the worst year for disasters in Greene County?
The most active year for disaster declarations in Greene County was 1983, with 2 declarations. The county has FEMA disaster data spanning 1973 to 2020.
What is the FEMA National Risk Index score for Greene County?
According to the FEMA National Risk Index, Greene County, Illinois has an overall risk score of 13.0 out of 100 (Very Low). Social vulnerability here rates Relatively Low, while community resilience comes in at Relatively High. The Expected Annual Loss (EAL) score is Very Low, representing $6.1M in annualized losses.
Which natural hazard poses the greatest risk to Greene County?
Based on FEMA NRI data, the highest-risk natural hazard in Greene County as of the latest release is Landslide (risk rating: Relatively Low). Other significant hazards include Drought (Relatively Moderate) and Heat Wave (Relatively Low). FEMA's modeled event frequency puts landslide here at roughly once every 3 years. 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.

What this means for Greene County

Greene County, IL has 19 federal declaration records, 48% more than the Illinois county mean of 13; its history sits in PlainHazard's high activity band.

  • Within this above-state-average declaration file, major disaster leads with 16 of 19 records; the category describes past federal action, not the next likely hazard. Illinois overview
  • The state benchmark and national rank point the same way: this count tops the Illinois mean and the totals for 41% of 3,266 U.S. counties. Most-disaster rankings
  • Use the data guide to separate this mid-volume insurance-claims file from declaration counts and modeled NRI risk. Disaster-data guide

An above-average declaration count records past federal responses; it does not predict the next event. Current warnings come from the National Weather Service and local emergency officials.

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.