riskbycounty
FEMA NRI 1.19.0Updated Nov 2023 · Coverage 2014–2023Methodology

De Witt County Disaster Risk

De Witt County, Illinois

FEMA Risk Rating

Very Low

National Percentile

29th

of 3,144 counties

State Rank

#81

of 102 (1 = highest risk)

Flood Risk

30th

percentile

Hazard Risk Breakdown

Flood

River, coastal, and surface flooding risk

Very Low

Higher than 30% of US counties

Wildfire

Wildland and wildland-urban interface fire risk

Very Low

Higher than 2% of US counties

Tornado

Tornado and severe thunderstorm risk

Relatively Low

Higher than 44% of US counties

Earthquake

Seismic activity and ground shaking risk

Relatively Low

Higher than 66% of US counties

Hurricane

Tropical cyclone and hurricane risk

Very Low

Higher than 19% of US counties

Risk Overview

About Natural Disaster Risk in De Witt County, Illinois

De Witt well protected from disasters

De Witt County's composite risk score of 29.26 earns a "Very Low" rating, placing it far below the national average for natural disaster exposure. Residents in De Witt enjoy substantially better odds than typical American households facing multiple hazard types.

Ranks among Illinois's safest

De Witt's 29.26 score falls in the lower quarter of Illinois counties, well below the state average of 54.46. The county's central location and geographic characteristics combine to create a comparatively low-hazard environment.

Sits between Crawford and the safest

De Witt (29.26) ranks safer than Crawford County (37.02) but slightly above Cumberland (25.86) and Edwards (26.14) in the immediate region. This foursome of Illinois counties represents the state's most naturally disaster-resistant communities.

Tornadoes present the primary threat

Tornado risk tops De Witt's hazard list at 44.12, representing the only significant exposure among multiple weather types. Earthquakes (65.74) rank second but remain relatively low in absolute terms, while flooding (30.31) and other hazards fall well below state averages.

Prioritize tornado readiness and insurance

Standard homeowners insurance with wind coverage protects against De Witt's primary tornado threat, supplemented by a household tornado safety plan. The county's low overall risk means basic preparedness steps provide excellent protection for most residents.

Source: FEMA National Risk Index · Narrative reviewed by Evan Brooks, Data Editor

Preparedness Guide

What to Prepare for in De Witt County

Top Hazards by Exposure

  1. #1
    EarthquakePrepare
    66th percentile
  2. #2
    TornadoPrepare
    44th percentile
  3. #3
    FloodPrepare
    30th percentile

Source: FEMA National Risk Index v1.19.0 · Percentiles are national (3,144 counties)

Risk Advisory: De Witt County

Risk Verdict

De Witt County sits in the lower tier of U.S. counties for natural disaster exposure, ranked at the 29th percentile nationally. De Witt County's 29th percentile ranking is favorable, though every county carries at least one natural hazard worth knowing — reviewing the specific risks listed above helps households focus their preparedness where it matters most.

Hazard Breakdown

Earthquake risk is De Witt County's dominant natural hazard, ranked at the 66th percentile nationally under FEMA's National Risk Index. Tornado ranks second at the 44th percentile nationally. Additional tracked hazards include flood (30th percentile), hurricane (19th percentile), wildfire (2th percentile).

Preparedness Context

At the 66th percentile nationally for earthquake exposure, De Witt County households benefit from practicing Drop, Cover, and Hold On — the protocol that minimizes injury during shaking. Getting under a sturdy table or desk and holding on until shaking stops is the key action. Tornado at the 44th percentile nationally is a separate hazard dimension for De Witt County that requires different protective strategies from earthquake preparedness. Building age matters for earthquake risk in De Witt County: structures built before local seismic code adoption are statistically more vulnerable. Contacting the local building department about retrofit programs can reveal whether your structure qualifies for mitigation assistance.

Regional Context

De Witt County falls 25.2 points below Illinois's typical county risk level, making it one of the safer natural-hazard environments in the state.

Is your household prepared for De Witt County's hazards?

Review FEMA's county-specific preparedness checklists and emergency planning guides.

FEMA Ready Guide →

Frequently Asked Questions

What is the natural disaster risk in De Witt County, IL?
De Witt County has a FEMA National Risk Index rating of Very Low, placing it in the 29th percentile nationally out of 3,144 counties. This composite score reflects the county's overall exposure to natural hazards including floods, wildfires, tornadoes, earthquakes, and hurricanes, weighted by expected annual loss and social vulnerability.
What types of natural hazards affect De Witt County?
De Witt County is evaluated for five major natural hazard types: earthquake (66th percentile), tornado (44th percentile), flooding (30th percentile), hurricane (19th percentile), wildfire (2th percentile). The highest-risk hazard is earthquake at the 66th percentile nationally. These scores are derived from FEMA's National Risk Index, which analyzes expected annual loss, social vulnerability, and community resilience for each hazard type.
How does De Witt County risk compare to the Illinois average?
De Witt County's composite risk percentile is 29th, compared to the Illinois state average of 55th percentile. The state's overall risk rating is Relatively Low. This means De Witt County faces lower natural disaster risk than the typical county in Illinois.
Is De Witt County at risk for earthquake?
Yes, De Witt County's earthquake risk is at the 66th percentile nationally. This is above the national median. For flooding specifically, De Witt County is at the 30th percentile.
How is natural disaster risk measured?
FEMA's National Risk Index (NRI) calculates risk scores for 18 natural hazard types across all U.S. counties and census tracts. The composite score combines Expected Annual Loss (estimated dollar losses from each hazard), Social Vulnerability (demographic factors affecting disaster impact), and Community Resilience (ability to recover). Percentile scores rank each county against all 3,144 U.S. counties, and risk ratings range from Very Low to Very High.
Is De Witt County a safe place to live?
De Witt County's composite risk score of 29th percentile is below the Illinois state average of 55th percentile, indicating relatively lower exposure to natural hazards. However, no county is completely risk-free. The primary hazard type is earthquake at the 66th percentile. Residents should still maintain emergency preparedness plans and appropriate insurance coverage.
By Evan Brooks, Data EditorUpdated Reviewed by Evan Brooks, Data Editor

Data Source

Risk data sourced from the FEMA National Risk Index (NRI). Risk scores are relative rankings (0–100) across all US counties — not absolute risk measures. Higher scores indicate higher relative risk compared to other counties.

Disclaimer: This data is informational only. It is not financial, insurance, or legal advice. Always consult a qualified professional before making insurance or real estate decisions.