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Illinois · FEMA + NOAA + National Risk Index

Will County, IL

19 FEMA disaster declarations (1967-2024), with a FEMA National Risk Index rating of Relatively High. Most common hazard: Severe Storm.

19
FEMA declarations
14
Major disasters
97
NRI risk · Relatively High
Severe Storm
Top hazard

The verdict

Two federal records point in the busier direction for Will 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 in the riskiest 3%, based on modeled expected annual loss, social vulnerability, and community resilience.

Riskiest 3%
of U.S. counties for FEMA National Risk Index score
Relatively High
FEMA National Risk Index rating
19
FEMA declarations vs 21 national county avg
2,294
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 17197 · Will County 19 declarations · rank 1781/3,266

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

  • DECL-MID 19
  • MAJOR-MID 74%
  • RANK-LOWER #1,781
  • PHOTO-FINISH Bartow
  • NRI-HIGH 97
  • ACT-HIGH High
  • TYPE-LEAD Severe Storm
  • VS-ST-ABOVE +48%

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

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

Will County in the declaration-count neighbourhood

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

declarations

What this shows Will County carries 19 FEMA declaration records, ranked 1781 of 3,266 counties in this registry.

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

How Will County's FEMA declaration count compares nationally

Will County vs. all counties in this dataset

FEMA disaster declarations, all-time · Will 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

Will County's FEMA Risk Index score

0/100100/100Illinois avg55/10097.3/100
FEMA National Risk Index composite score vs. the Illinois county average

Which hazard drives modeled loss here?

FEMA's modeled annual dollar loss for Will County is led by Riverine Flooding (about $193.0M Expected Annual Loss, Historical Loss Ratio Relatively High), while Cold Wave carries the highest National Risk Index rating (Very 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 Will County's hazard record show?

Reading the federal records together

FEMA's NFIP table contains a substantial paid-claim history for this county: 2,294 claims and $21.1M in payments. PlainHazard labels 500 or more claims a heavy registry record; that is a reporting bucket, not an official FEMA risk grade. The average paid claim was $9.2K. NFIP totals exclude uninsured flood losses and do not measure how many properties currently carry a policy.

The declaration register points in the busier direction. Will 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.

FEMA National Risk Index

This county sits among the highest-risk counties nationally on FEMA's National Risk Index, a composite score of 97.3/100 (Relatively High). Expected Annual Loss is rated Relatively High (roughly $348.1M in annualized losses). Social vulnerability reads Very Low and community resilience Very High, both critical modifiers of realized harm here. Of the 18 hazards FEMA models, Cold Wave stands out as the sharpest exposure here, rated Very High. FEMA's modeled frequency puts that hazard at an average of 4.3 times per year here, based on 82 historical events on record.

65 /100

Historical Activity Index

High historical activity

Will 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 High
18/25

14 of 19 declarations are major disasters (74%)

Hazard Diversity Very High
15/20

6 different disaster types declared in Will County

FEMA NRI 8-hazard radar - Will County

Will County NRI risk profile 8-axis FEMA National Risk Index radar showing per-hazard scores for Earthquake 48, Flood 70, Hurricane 8, Tornado 92, Wildfire 8, Drought 25, Heat Wave 48, Winter Storm 92. The simple mean of these eight displayed scores is 49 of 100. Earthquake Flood Hurricane Tornado Wildfire Drought Heat Wave Winter Storm 49 8-hazard mean
Will County NRI risk profile FIPS 17197 · displayed-hazard mean 49/100
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

74%

Major-heavy

NRI risk score

97

Relatively High

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

How often does each hazard strike Will 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
Cold Wave Very High an average of 4.3 times per year
Tornado Very High roughly once every 2 years
Riverine Flooding Relatively High an average of 3 times per year
Heat Wave Relatively Moderate 3.6 modeled event-days per year
Winter Weather Relatively High an average of 14 times per year
Earthquake Relatively Moderate roughly once every 685 years
Lightning Relatively High an average of 45 times per year
Ice Storm Relatively Moderate roughly once every 1 years
Hail Relatively Low an average of 3.9 times per year
Landslide Very Low roughly once every 6 years
Wildfire Very Low roughly once every 3,218 years
Strong Wind Relatively Low an average of 5.6 times per year
Drought Relatively Low 1.6 modeled event-days per year
Hurricane Very Low roughly once every 107 years

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

Disaster Types

Severe Storm 5
Flood 4
Snowstorm 4
Tornado 3
Biological 2
Hurricane 1

What Severe Storm declarations mean here

Severe Storm is the most frequent declaration type on Will County's record, 26% 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 - 14 73.7%

of all 19 declarations

Emergency - 5 26.3%

of all 19 declarations

FEMA Declarations Timeline

Year Declarations
2024 1
2020 2
2014 1
2013 1
2011 1
2009 1
2007 1
2005 1
2004 1
2001 1
1999 1
1996 1
1990 1
1985 1
1981 1
Show 3 earlier declaration years
1979 1
1974 1
1967 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
4819 SEVERE STORMS, TORNADOES, STRAIGHT-LINE WINDS, AND FLOODNG DR Flood 2024-09-20
4489 COVID-19 PANDEMIC DR Biological 2020-03-26
3435 COVID-19 EM Biological 2020-03-13
4157 SEVERE STORMS, STRAIGHT-LINE WINDS, AND TORNADOES DR Tornado 2013-11-26
4116 SEVERE STORMS, STRAIGHT-LINE WINDS, AND FLOODING DR Flood 2013-05-10
1960 SEVERE WINTER STORM AND SNOWSTORM DR Snowstorm 2011-03-17
1800 SEVERE STORMS AND FLOODING DR Severe Storm 2008-10-03
1729 SEVERE STORMS AND FLOODING DR Severe Storm 2007-09-25
3230 HURRICANE KATRINA EVACUATION EM Hurricane 2005-09-07
1513 SEVERE STORMS AND TORNADOES DR Severe Storm 2004-04-23
3161 ILLINOIS WINTER SNOW STORMS EM Snowstorm 2001-01-17
3134 IL-WINTER STORM 1/1/99 EM Snowstorm 1999-01-08
1129 SEVERE STORMS AND FLOODING DR Severe Storm 1996-07-25
878 TORNADOES DR Tornado 1990-08-29
735 SEVERE STORMS & FLOODING DR Flood 1985-03-29
643 SEVERE STORMS, FLOODING & TORNADOES DR Severe Storm 1981-06-30
3068 BLIZZARDS & SNOWSTORMS EM Snowstorm 1979-01-16
438 SEVERE STORMS & FLOODING DR Flood 1974-06-10
227 TORNADOES DR Tornado 1967-04-25

Storm Events in Illinois

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

2,294

Total Paid

$21.1M

Avg Per Claim

$9.2K

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

FEMA National Risk Index

Overall Risk

Relatively High

Score: 97.3/100

Expected Annual Loss

Relatively High

$348.1M/year

Social Vulnerability

Very Low

Community Resilience

Very High

Hazard Risk Breakdown

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

Cold Wave measures exposure to extreme cold rather than to snow. Its harm is concentrated in health effects, burst infrastructure and energy demand spikes, and it falls hardest where the building stock and the grid were not built with sustained cold in mind.

Worth noting for Will County: the model and the federal record do NOT point at the same hazard. Cold Wave carries the highest modeled rating (Very 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

Will County's closest FEMA peer: Cameron County, TX

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

Compare beyond this state

Nationwide peers by NRI score & FEMA declaration volume

Two PlainHazard-derived comparison paths for Will 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

Understanding disaster data

Will County's NFIP claims file (2,294 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 Will County?
The most common disaster type in Will County is Severe Storm, with 5 declarations. Other disaster types include Flood (4), Snowstorm (4), Tornado (3).
How does Will County's FEMA declaration record compare with the Illinois average?
FEMA lists 19 declaration records for Will 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 Will County received?
Will County has received 14 major disaster declarations, representing 74% of all 19 disaster declarations.
How many flood insurance claims has Will County filed?
Will County has 2,294 National Flood Insurance Program (NFIP) claims totaling $21.1M in payments, with an average of $9.2K per claim.
Does FEMA's top risk-rated hazard match the highest Expected Annual Loss in Will County?
No. In Will County, Cold Wave has the highest National Risk Index rating (Very High), while Riverine Flooding leads Expected Annual Loss at about $193.0M. FEMA's risk score and dollar-loss model use different inputs, so the leaders often differ.
What was the worst year for disasters in Will County?
The most active year for disaster declarations in Will County was 2020, with 2 declarations. The county has FEMA disaster data spanning 1967 to 2024.
What is the FEMA National Risk Index score for Will County?
According to the FEMA National Risk Index, Will County, Illinois has an overall risk score of 97.3 out of 100 (Relatively High). Social vulnerability here rates Very Low, while community resilience comes in at Very High. The Expected Annual Loss (EAL) score is Relatively High, representing $348.1M in annualized losses.
Which natural hazard poses the greatest risk to Will County?
FEMA's NRI data points to Will County as of the latest release is Cold Wave (risk rating: Very High). Other significant hazards include Tornado (Very High) and Riverine Flooding (Relatively High). FEMA's modeled event frequency puts cold wave here at an average of 4.3 times per year, drawn from 82 historical events on record. The underlying methodology weighs historical event frequency against 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 Will County · vintage 2026-08-25 · Methodology · Illinois profile · Verify with FEMA OpenFEMA · Verify with NOAA Storm Events