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

Piatt County Disaster Risk

Piatt County, Illinois

FEMA Risk Rating

Very Low

National Percentile

35th

of 3,144 counties

State Rank

#75

of 102 (1 = highest risk)

Flood Risk

44th

percentile

Hazard Risk Breakdown

Flood

River, coastal, and surface flooding risk

Relatively Low

Higher than 44% 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 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 22% of US counties

Risk Overview

About Natural Disaster Risk in Piatt County, Illinois

Piatt County falls below national risk threshold

Piatt County's composite risk score of 34.96 places it significantly below the national average and 36% lower than Illinois's statewide average of 54.46. This "Very Low" rating makes Piatt one of Illinois's safer counties for natural disaster exposure, though no location is entirely hazard-free.

Piatt ranks among Illinois's safest counties

Piatt County ranks in the bottom third of Illinois's 102 counties for composite disaster risk, with only about 30 counties scoring lower. This favorable positioning reflects the county's distance from major seismic zones and relative distance from the most tornado-prone regions of the state.

Piatt enjoys lower risk than regional peers

At 34.96, Piatt County scores notably better than its northern neighbor Perry County (72.07) and western neighbor Pike County (30.34), making it among the safest in central Illinois. This lower exposure is due partly to below-average earthquake and tornado risks compared to the state baseline.

Flood and tornado risks warrant attention

Piatt County's most significant hazards are flood risk at 43.67 and tornado risk at 44.34, both slightly below state averages but still meaningful for emergency preparedness. Earthquake risk scores 66.38, reflecting the county's modest seismic exposure relative to southern Illinois counties.

Focus on flood and wind coverage basics

Piatt County homeowners should prioritize flood insurance—available through the National Flood Insurance Program—and verify their standard policy includes wind/hail protection for tornadoes. With low but non-zero hazard exposure across flood and severe weather, basic coverage aligns well with Piatt's risk profile.

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

Preparedness Guide

What to Prepare for in Piatt County

Top Hazards by Exposure

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

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

Risk Advisory: Piatt County

Risk Verdict

Compared to the nation's 3,144 counties, Piatt County ranks at the 35th percentile for natural disaster risk — toward the safer end of the spectrum. Being ranked at the 35th percentile nationally is an advantage for Piatt County — it means fewer statistically likely events, though basic readiness ensures households are covered when exceptions occur.

Hazard Breakdown

Earthquake risk is Piatt 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 (44th percentile), hurricane (22th percentile), wildfire (4th percentile).

Preparedness Context

With earthquake ranked as the top hazard at the 66th percentile nationally, Piatt County residents benefit from reviewing homeowners insurance: standard policies rarely cover earthquake damage, and separate earthquake insurance must be purchased before an event. Tornado at the 44th percentile nationally is a separate hazard dimension for Piatt County that requires different protective strategies from earthquake preparedness. Earthquake insurance in Piatt County is typically offered as a separate policy — standard homeowners coverage excludes ground movement. Reviewing this gap and comparing policy options before an event is a financial preparedness step with potentially large consequences.

Regional Context

At 19.5 points below the Illinois state average, Piatt County is among the lower-risk counties in the state for natural disaster exposure.

Is your household prepared for Piatt 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 Piatt County, IL?
Piatt County has a FEMA National Risk Index rating of Very Low, placing it in the 35th 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 Piatt County?
Piatt County is evaluated for five major natural hazard types: earthquake (66th percentile), tornado (44th percentile), flooding (44th percentile), hurricane (22th percentile), wildfire (4th 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 Piatt County risk compare to the Illinois average?
Piatt County's composite risk percentile is 35th, compared to the Illinois state average of 55th percentile. The state's overall risk rating is Relatively Low. This means Piatt County faces lower natural disaster risk than the typical county in Illinois.
Is Piatt County at risk for earthquake?
Yes, Piatt County's earthquake risk is at the 66th percentile nationally. This is above the national median. For flooding specifically, Piatt County is at the 44th 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 Piatt County a safe place to live?
Piatt County's composite risk score of 35th 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.