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Illinois · FEMA + NOAA + National Risk Index

Clark County, IL

1 FEMA disaster declarations (2023–2023), with a FEMA National Risk Index rating of Very Low. Most common hazard: Severe Storm.

1
FEMA declarations
1
Major disasters
27
NRI risk · Very Low
Severe Storm
Top hazard

The verdict

Clark County ranks safer than 27% of U.S. counties for FEMA-modeled hazard risk, with more federally declared disasters than 0% of the 2,791 counties FEMA tracks. FEMA rates the county's overall risk as Very Low, based on 1 federal disaster declarations recorded since 2023, most often severe storm, 74% below the national county average of 4.

Safer than 27%
of U.S. counties for FEMA National Risk Index score
Very Low
FEMA National Risk Index rating
1
FEMA declarations vs 4 national county avg
1
severe storm declarations, the most common hazard here

FEMA's National Risk Index score reflects expected annual loss, social vulnerability, and community resilience; the declaration count above reflects only Presidentially declared disasters, not every hazard event.

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How does Clark County compare?

Clark County vs. every U.S. county

FEMA disaster declarations, all-time

1 0th percentile higher than 0% of 2,791 counties

This county 0 30 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 · 2026-07-25

Clark County's FEMA Risk Index score

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

0/100100/100Illinois avg53/10027.3/100
FEMA National Risk Index composite score vs. the Illinois county average

How disaster-prone is Clark County?

Declaration frequency

Clark County, Illinois has recorded 1 FEMA disaster declarations between 2023 and 2023, of which 1 were classified as Major Disaster declarations (DR) requiring federal individual and public assistance. That puts the county's average at - declarations per year, or roughly 18% below the Illinois county average of 1.2 and 74% below the national county average of 3.8. The dominant disaster type on record is Severe Storm, with 1 of 1 declarations falling under this category.

FEMA National Risk Index

This county's FEMA National Risk Index composite lands at 27.3/100 (Very Low), a modest reading against the rest of the country. Expected Annual Loss is rated Very Low (roughly $8.8M in annualized losses), tempered or compounded by a Relatively Moderate social-vulnerability score and Relatively High community-resilience score. Even the county's top-rated hazard, Earthquake, only reaches Relatively Low on FEMA's scale, none of the 18 modeled hazards stand out here.

Flood exposure & the bottom line

Taken together, Clark County's federal disaster history is about as quiet as U.S. counties get, a very low relative risk level on this measure.

Risk Assessment

Risk Level

Very Low

vs. Illinois Avg

-18%

State avg: 1.2

vs. National Avg

-74%

National avg: 3.8

Avg Per Year

-

-

FEMA NRI 8-hazard radar - Clark County

Clark County NRI risk profile 8-axis FEMA National Risk Index radar showing per-hazard composite scores for Earthquake 25, Flood 0, Hurricane 8, Tornado 25, Wildfire 8, Drought 48, Heat Wave 25, Winter Storm 25. Overall composite 21 of 100, classified Low. Earthquake Flood Hurricane Tornado Wildfire Drought Heat Wave Winter Storm 21 composite
Clark County NRI risk profile FIPS 17023 · composite 21/100 (Low)
How to read this radar

The radar plots Clark County's relative exposure to the eight headline natural hazards used by the FEMA National Risk Index. Each axis is the qualitative NRI risk rating (Very Low through Very High) re-expressed on a 0-100 scale so that the polygon shape lets you compare a county against another at a glance. A rounder polygon means broad multi-hazard exposure; a spiky polygon means one or two dominant hazards drive most of the modeled risk.

FEMA Records

1

Total declarations

NRI Source

FEMA 2023

Latest NRI release

County FIPS

17023

IL state code

Source: FEMA National Risk Index FEMA National Risk Index Per-county per-hazard ratings, 2023 release

Disaster Types

Severe Storm 1

Declaration Types

What DR / EM / FM mean

FEMA categorizes declarations as Major Disasters (DR), Emergencies (EM), or Fire Management Assistance (FM).

Major Disaster - 1 100.0%

of all 1 declarations

FEMA Declarations Timeline

Year Declarations
2023 1

Disaster Declarations

DR# Title Type Incident Date
4728 SEVERE STORMS AND FLOODING DR Severe Storm 2023-08-15

Storm Events in Illinois

Storm Type Events Fatalities Injuries Property Damage
Thunderstorm Wind 8,914 9 82 $49.5M
Hail 3,712 0 0 $27.1M
Winter Weather 1,778 16 53 $1.8M
Flood 1,362 14 11 $84.4M
Flash Flood 1,354 12 3 $1.6B

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

FEMA National Risk Index

Overall Risk

Very Low

Score: 27.3/100

Expected Annual Loss

Very Low

$8.8M/year

Social Vulnerability

Relatively Moderate

Community Resilience

Relatively High

Hazard Risk Breakdown

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

Source: FEMA National Risk Index (NRI) FEMA National Risk Index (NRI) Ratings reflect relative scores among all US counties. Data: hazards.fema.gov/nri

Counties with Similar Risk in Illinois

Frequently Asked Questions

How many natural disasters has Clark County, Illinois had?
Clark County, Illinois has received 1 FEMA disaster declarations from 2023 to 2023. Of these, 1 were major disaster declarations.
What is the most common disaster type in Clark County?
The most common disaster type in Clark County is Severe Storm, with 1 declaration.
How does Clark County's disaster risk compare to the Illinois average?
Clark County has 1 disaster declarations, which is 18% lower than the Illinois county average of 1.2 declarations. Compared to the national county average of 3.8, it is 74% lower.
How many major FEMA disaster declarations has Clark County received?
Clark County has received 1 major disaster declaration, representing 100% of all 1 disaster declarations. Major disaster declarations typically involve significant damage requiring federal assistance.
What types of storms are most common in Illinois?
The most common storm types in Illinois include Thunderstorm Wind (8,914 events), Hail (3,712 events), Winter Weather (1,778 events). NOAA storm event data covers severe weather from 2015 to 2025.
What is the overall disaster risk level for Clark County?
Clark County has just 1 FEMA disaster declaration on record, placing it in the very-low-risk band, among the quieter counties in FEMA's declaration history.
What is the FEMA National Risk Index score for Clark County?
According to the FEMA National Risk Index, Clark County, Illinois has an overall risk score of 27.3 out of 100 (Very Low). The county's social vulnerability rating is Relatively Moderate and community resilience is Relatively High. The Expected Annual Loss (EAL) score is Very Low, representing $8.8M in annualized losses.
Which natural hazard poses the greatest risk to Clark County?
Based on FEMA NRI data, the highest-risk natural hazard in Clark County is Earthquake (risk rating: Relatively Low). Other significant hazards include Drought (Relatively Moderate) and Landslide (Relatively Low). 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.

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 Clark County

Clark County, IL runs 18% below the Illinois county average for federal disaster declarations (1 vs 1), a very low historical load overall.

  • Its most common federal declaration type is major disaster (1 of 1) - know the hazards most likely here before they happen. Illinois overview
  • See how this county ranks against the rest of the country for disaster frequency. Most-disaster rankings
  • Read how to read FEMA declarations, NRI risk scores, and what they do and don't tell you. Disaster-data guide

Historical declaration counts describe past federal response, not a forecast. For current threats, follow the National Weather Service and local officials; in an emergency call 911.

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. This page draws directly on FEMA federal disaster data, no figure is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or national statistics report, or report a data error.