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

Douglas County Disaster Risk

Douglas County, Illinois

FEMA Risk Rating

Relatively Low

National Percentile

62th

of 3,144 counties

State Rank

#43

of 102 (1 = highest risk)

Flood Risk

60th

percentile

Hazard Risk Breakdown

Flood

River, coastal, and surface flooding risk

Relatively Low

Higher than 60% of US counties

Wildfire

Wildland and wildland-urban interface fire risk

Very Low

Higher than 4% of US counties

Tornado

Tornado and severe thunderstorm risk

Relatively Low

Higher than 47% of US counties

Earthquake

Seismic activity and ground shaking risk

Relatively Low

Higher than 76% of US counties

Hurricane

Tropical cyclone and hurricane risk

Very Low

Higher than 39% of US counties

Risk Overview

About Natural Disaster Risk in Douglas County, Illinois

Douglas moderately above national average

Douglas County's 62.12 composite risk score places it in the "Relatively Low" category but above the national average for disaster exposure. Residents face notably more hazard vulnerability than average Americans, though not in the high-risk tier.

Mid-range risk for Illinois

Douglas's 62.12 score sits slightly above Illinois's 54.46 state average, ranking it in the upper-middle tier of the state's 102 counties. The county faces more exposure than three-quarters of Illinois but less than the state's most hazard-prone communities.

Riskier than nearby low-risk counties

Douglas (62.12) faces roughly triple the risk of nearby Crawford (37.02) and De Witt (29.26), but remains safer than DeKalb (80.82). Its risk profile sits distinctly higher than its immediate region, reflecting different geographic characteristics.

Flooding and tornadoes top concern list

Douglas faces elevated flood risk at 60.05 and tornado exposure at 47.20, both moderately significant threats requiring attention. Earthquakes (76.43) and hurricanes (39.17) round out meaningful hazards, creating a multi-faceted natural disaster profile.

Secure flood and wind coverage now

Flood insurance is strongly recommended for Douglas County residents, given the county's elevated exposure to water hazards. Pair this with comprehensive homeowners coverage including tornado/wind protection, plus documented evacuation plans for your household.

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

Preparedness Guide

What to Prepare for in Douglas County

Top Hazards by Exposure

  1. #1
    EarthquakePrepare
    76th percentile
  2. #2
    FloodPrepare
    60th percentile
  3. #3
    TornadoPrepare
    47th percentile

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

Risk Advisory: Douglas County

Risk Verdict

Natural hazard pressure in Douglas County is below the national midpoint, with a composite score at the 62th percentile. Proactive emergency planning and awareness of the specific hazards driving Douglas County's score can meaningfully reduce household risk.

Hazard Breakdown

Earthquake risk is Douglas County's dominant natural hazard, ranked at the 76th percentile nationally under FEMA's National Risk Index. Flood ranks second at the 60th percentile nationally. Additional tracked hazards include tornado (47th percentile), hurricane (39th percentile), wildfire (4th percentile).

Preparedness Context

Earthquake exposure at the 76th percentile nationally puts Douglas County in a zone where utilities — gas, water, electrical — are the most common post-quake hazard. Knowing how to shut off the main gas valve is an important household skill to develop before an event occurs. The county's flood risk at the 60th percentile nationally is a seasonal consideration alongside the year-round earthquake threat, requiring awareness of both hazard types. Douglas County households benefit from keeping shoes and a flashlight near the bed — post-earthquake navigation through debris in the dark is a common cause of secondary injury. This low-cost step has outsized protective value.

Regional Context

Douglas County is 7.7 composite risk points above the Illinois average, indicating that residents face greater natural hazard exposure than most of their in-state neighbors.

Is your household prepared for Douglas 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 Douglas County, IL?
Douglas County has a FEMA National Risk Index rating of Relatively Low, placing it in the 62th 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 Douglas County?
Douglas County is evaluated for five major natural hazard types: earthquake (76th percentile), flooding (60th percentile), tornado (47th percentile), hurricane (39th percentile), wildfire (4th percentile). The highest-risk hazard is earthquake at the 76th 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 Douglas County risk compare to the Illinois average?
Douglas County's composite risk percentile is 62th, compared to the Illinois state average of 55th percentile. The state's overall risk rating is Relatively Low. This means Douglas County faces higher natural disaster risk than the typical county in Illinois.
Is Douglas County at risk for earthquake?
Yes, Douglas County's earthquake risk is at the 76th percentile nationally. This places it in the top quartile for this hazard type. For flooding specifically, Douglas County is at the 60th 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.
Why is Douglas County higher risk than average?
Douglas County's composite risk score of 62th percentile is above the Illinois state average of 55th percentile. This elevated risk is driven by earthquake exposure (76th percentile), along with flooding risk. Geographic location, terrain, climate patterns, and proximity to flood zones or fault lines all influence a county's risk profile.
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.