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

Butler County Disaster Risk

Butler County, Ohio

FEMA Risk Rating

Relatively Moderate

National Percentile

91th

of 3,144 counties

State Rank

#6

of 88 (1 = highest risk)

Flood Risk

93th

percentile

Hazard Risk Breakdown

Flood

River, coastal, and surface flooding risk

Moderate

Higher than 93% of US counties

Wildfire

Wildland and wildland-urban interface fire risk

Very Low

Higher than 41% of US counties

Tornado

Tornado and severe thunderstorm risk

Relatively High

Higher than 98% of US counties

Earthquake

Seismic activity and ground shaking risk

Moderate

Higher than 85% of US counties

Hurricane

Tropical cyclone and hurricane risk

Very Low

Higher than 28% of US counties

Risk Overview

About Natural Disaster Risk in Butler County, Ohio

Butler County faces above-average disaster risk

Butler County's composite risk score of 91.48 places it well above the national average, signaling elevated exposure to multiple natural hazards. This "Relatively Moderate" rating means residents face meaningfully higher risk than the typical American county, particularly from severe weather events.

Among Ohio's most vulnerable counties

Butler County ranks near the top for disaster risk across Ohio, with a score significantly higher than the state average of 55.03. This makes it one of the counties in Ohio where residents should prioritize preparedness and protective measures most seriously.

Riskier than surrounding counties

Butler County's score of 91.48 substantially exceeds those of neighboring Clermont County (77.86) and Columbiana County (69.05). This variation reflects Butler's particular vulnerability to the specific hazard types that define its composite risk profile.

Tornadoes and floods dominate here

Tornado risk reaches 98.03 in Butler County—exceptionally high—while flood risk stands at 93.00, both far exceeding most Ohio counties. Earthquake risk (85.34) also warrants attention, though wildfire risk remains comparatively low at 41.19.

Prioritize flood and storm coverage

Given the extreme tornado (98.03) and flood (93.00) risks, Butler County residents should ensure comprehensive homeowner's insurance with specific tornado and flood endorsements. A basement safe room or storm shelter can provide life-saving protection during severe weather events.

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

Preparedness Guide

What to Prepare for in Butler County

Top Hazards by Exposure

  1. #1
    TornadoPrepare
    98th percentile
  2. #2
    FloodPrepare
    93th percentile
  3. #3
    EarthquakePrepare
    85th percentile

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

Risk Advisory: Butler County

Risk Verdict

Natural hazard risk in Butler County is higher than the majority of U.S. counties, with a national composite rank of 91th. Butler County's elevated composite score reflects cumulative multi-hazard exposure; households should prepare for the county's two or three primary hazard types.

Hazard Breakdown

Tornado risk is Butler County's dominant natural hazard, ranked at the 98th percentile nationally under FEMA's National Risk Index. Flood ranks second at the 93th percentile nationally. Additional tracked hazards include earthquake (85th percentile), wildfire (41th percentile), hurricane (28th percentile).

Preparedness Context

Ranked at the 98th percentile nationally for tornado risk, Butler County is in a zone where storm shelters have the highest per-dollar protective value of any mitigation investment. Butler County's county shelter map is typically available through the local emergency management office. Flood is the second hazard driver for Butler County at the 93th percentile nationally, meaning households should maintain awareness of both severe-weather and flood-specific warning systems. Butler County residents can check the county's emergency management website for community shelter locations nearest their address — a step worth completing now, not during a warning.

Regional Context

A composite score 36.4 points above the Ohio state average puts Butler County in a higher-risk category than most counties in the state.

Is your household prepared for Butler 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 Butler County, OH?
Butler County has a FEMA National Risk Index rating of Relatively Moderate, placing it in the 91th 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 Butler County?
Butler County is evaluated for five major natural hazard types: tornado (98th percentile), flooding (93th percentile), earthquake (85th percentile), wildfire (41th percentile), hurricane (28th percentile). The highest-risk hazard is tornado at the 98th 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 Butler County risk compare to the Ohio average?
Butler County's composite risk percentile is 91th, compared to the Ohio state average of 55th percentile. The state's overall risk rating is Relatively Low. This means Butler County faces higher natural disaster risk than the typical county in Ohio.
Is Butler County at risk for tornado?
Yes, Butler County's tornado risk is at the 98th percentile nationally. This places it in the top quartile for this hazard type. For flooding specifically, Butler County is at the 93th 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 Butler County higher risk than average?
Butler County's composite risk score of 91th percentile is above the Ohio state average of 55th percentile. This elevated risk is driven by tornado exposure (98th percentile), along with flooding and earthquake 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.