PlainHazard

If you are in immediate danger, call 911.

The data below is historical (NOAA Storm Events / FEMA), not a live alert. For current warnings and evacuation orders, check the National Weather Service, Ready.gov, or FEMA.gov.

Illinois · FEMA + NOAA + National Risk Index

DuPage County, IL

16 FEMA disaster declarations (1967-2020), with a FEMA National Risk Index rating of Relatively High. Most common hazard: Snowstorm.

16
FEMA declarations
11
Major disasters
98
NRI risk · Relatively High
Snowstorm
Top hazard

The verdict

Two federal records point in the busier direction for DuPage County. Its 16 FEMA declarations are 24% above the Illinois county mean and exceed the count for 27% of the 3,266 counties in this registry. Separately, FEMA's National Risk Index places it in the riskiest 2%, based on modeled expected annual loss, social vulnerability, and community resilience.

Riskiest 2%
of U.S. counties for FEMA National Risk Index score
Relatively High
FEMA National Risk Index rating
16
FEMA declarations vs 21 national county avg
3,602
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.

View my watchlist

How does DuPage County compare?

DuPage County vs. all counties in this dataset

FEMA disaster declarations, all-time

16 27th percentile higher than 27% 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

DuPage County's FEMA Risk Index score

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

0/100100/100Illinois avg55/10097.6/100
FEMA National Risk Index composite score vs. the Illinois county average

Which hazard drives modeled loss here?

FEMA's modeled annual dollar loss for DuPage County is led by Riverine Flooding (about $195.3M 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 DuPage County's hazard record show?

Reading the federal records together

FEMA's NFIP table contains a substantial paid-claim history for this county: 3,602 claims and $55.2M 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 $15.3K. 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. DuPage County's 16 federal records stand 24% 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 97.6/100 (Relatively High). Expected Annual Loss is rated Relatively High (roughly $366.0M in annualized losses). Social vulnerability reads Very Low and community resilience Relatively 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 4.6 times per year here, based on 88 historical events on record.

Declaration frequency

The FEMA register is busy by both local and national comparisons. It contains 16 entries for DuPage County, including 11 Major Disaster records, 24% above the Illinois county mean. Across the 53-year span, that works out to 0.3 declarations a year. Snowstorm leads the file with 4 entries. Declaration type records the federal action taken, not every assistance program approved.

60 /100

Historical Activity Index

High historical activity

DuPage 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
12/30

16 OpenFEMA declarations, full ingest window (0.8x national county average)

County Disaster Density High
16/25

16 declarations (1.2x state county average of 13)

Major Disaster Share High
17/25

11 of 16 declarations are major disasters (69%)

Hazard Diversity Very High
15/20

6 different disaster types declared in DuPage County

Historical Declaration Activity

Activity Band

High

vs. Illinois Avg

+24%

State avg: 12.9

vs. National Avg

-23%

National avg: 20.7

Avg Per Year

0.3

Over 53 years

FEMA NRI 8-hazard radar - DuPage County

DuPage 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 8, Heat Wave 48, Winter Storm 92. The simple mean of these eight displayed scores is 47 of 100. Earthquake Flood Hurricane Tornado Wildfire Drought Heat Wave Winter Storm 47 8-hazard mean
DuPage County NRI risk profile FIPS 17043 · displayed-hazard mean 47/100
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

16

Below median

Major Disaster share

69%

Major-heavy

NRI risk score

98

Relatively High

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

How often does each hazard strike DuPage 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 4.6 times per year
Tornado Very High roughly once every 4 years
Strong Wind Very High an average of 5.8 times per year
Riverine Flooding Relatively High an average of 2.8 times per year
Lightning Relatively High an average of 42 times per year
Heat Wave Relatively Moderate 3.1 modeled event-days per year
Earthquake Relatively Moderate roughly once every 772 years
Winter Weather Relatively High an average of 14 times per year
Ice Storm Relatively Moderate roughly once every 2 years
Hail Relatively Low an average of 4 times per year
Wildfire Very Low roughly once every 6,786 years
Landslide Very Low roughly once every 20 years
Hurricane Very Low roughly once every 100 years
Drought Very Low 5.2 modeled event-days per year

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

Disaster Types

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

What Snowstorm declarations mean here

Snowstorm is the most frequent declaration type on DuPage County's record, 25% of its declarations. Snow-related declarations work on a narrower basis than most other hazards: they are generally issued to reimburse the cost of snow removal and emergency protective measures, rather than to repair destroyed property.

The qualifying test is unusual too. FEMA assesses snowfall against record levels for the affected area, so the same storm total can qualify in a county where it is historically extreme and not qualify a few hundred miles north where it is an ordinary winter. A low snowstorm declaration count is therefore not evidence of mild winters.

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 - 11 68.8%

of all 16 declarations

Emergency - 5 31.3%

of all 16 declarations

FEMA Declarations Timeline

Year Declarations
2020 2
2013 1
2011 1
2010 1
2009 1
2005 1
2001 1
1999 1
1996 1
1987 1
1979 1
1976 1
1974 1
1972 1
1967 1

Disaster Declarations

How the 16 FEMA declarations break into federal action codes (DR / EM / FM). Same DISTINCT grain as the table below.

Download these 16 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
4116 SEVERE STORMS, STRAIGHT-LINE WINDS, AND FLOODING DR Flood 2013-05-10
1960 SEVERE WINTER STORM AND SNOWSTORM DR Snowstorm 2011-03-17
1935 SEVERE STORMS AND FLOODING DR Severe Storm 2010-08-19
1800 SEVERE STORMS AND FLOODING DR Severe Storm 2008-10-03
3230 HURRICANE KATRINA EVACUATION EM Hurricane 2005-09-07
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
798 SEVERE STORMS & FLOODING DR Flood 1987-08-21
3068 BLIZZARDS & SNOWSTORMS EM Snowstorm 1979-01-16
509 SEVERE STORMS, TORNADOES & FLOODING DR Severe Storm 1976-06-18
438 SEVERE STORMS & FLOODING DR Flood 1974-06-10
351 SEVERE STORMS & FLOODING DR Flood 1972-09-04
227 TORNADOES DR Tornado 1967-04-25

Storm Events in Illinois

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

3,602

Total Paid

$55.2M

Avg Per Claim

$15.3K

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

FEMA National Risk Index

Overall Risk

Relatively High

Score: 97.6/100

Expected Annual Loss

Relatively High

$366.0M/year

Social Vulnerability

Very Low

Community Resilience

Relatively High

Hazard Risk Breakdown

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

For DuPage County the two measures on this page point the same way: Cold Wave is the county's highest-rated modeled hazard (Very High), and Snowstorm 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

DuPage County's closest FEMA peer: Jefferson County, AL

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

Further reading for this county

Understanding disaster data

DuPage County's NFIP claims file (3,602 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 DuPage County?
The most common disaster type in DuPage County is Snowstorm, with 4 declarations. Other disaster types include Flood (4), Severe Storm (4), Biological (2).
How does DuPage County's FEMA declaration record compare with the Illinois average?
FEMA lists 16 declaration records for DuPage County. That is 24% above the Illinois county mean of 12.9. Its count is also 23% 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 DuPage County received?
DuPage County has received 11 major disaster declarations, representing 69% of all 16 disaster declarations.
How many flood insurance claims has DuPage County filed?
DuPage County has 3,602 National Flood Insurance Program (NFIP) claims totaling $55.2M in payments, with an average of $15.3K per claim.
Does FEMA's top risk-rated hazard match the highest Expected Annual Loss in DuPage County?
No. In DuPage County, Cold Wave has the highest National Risk Index rating (Very High), while Riverine Flooding leads Expected Annual Loss at about $195.3M. FEMA's risk score and dollar-loss model use different inputs, so the leaders often differ.
What was the worst year for disasters in DuPage County?
The most active year for disaster declarations in DuPage County was 2020, with 2 declarations. The county has FEMA disaster data spanning 1967 to 2020.
What is the FEMA National Risk Index score for DuPage County?
According to the FEMA National Risk Index, DuPage County, Illinois has an overall risk score of 97.6 out of 100 (Relatively High). On social vulnerability the county rates Very Low; on community resilience, Relatively High. The Expected Annual Loss (EAL) score is Relatively High, representing $366.0M in annualized losses.
Which natural hazard poses the greatest risk to DuPage County?
Based on FEMA NRI data, the highest-risk natural hazard in DuPage County is Cold Wave (risk rating: Very High). Other significant hazards include Tornado (Very High) and Strong Wind (Very High). FEMA's modeled event frequency puts cold wave here at an average of 4.6 times per year, drawn from 88 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.

What this means for DuPage County

DuPage County, IL has 16 federal declaration records, 24% 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 11 of 16 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 27% of 3,266 U.S. counties. Most-disaster rankings
  • The large NFIP claims file and FEMA declaration history measure different federal records; the guide explains where they overlap and where they do not. 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.