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

Butler County Disaster Risk

Butler County, Pennsylvania

FEMA Risk Rating

Relatively Low

National Percentile

79th

of 3,144 counties

State Rank

#24

of 67 (1 = highest risk)

Flood Risk

89th

percentile

Hazard Risk Breakdown

Flood

River, coastal, and surface flooding risk

Moderate

Higher than 89% of US counties

Wildfire

Wildland and wildland-urban interface fire risk

Very Low

Higher than 39% of US counties

Tornado

Tornado and severe thunderstorm risk

Relatively Low

Higher than 60% of US counties

Earthquake

Seismic activity and ground shaking risk

Relatively Low

Higher than 52% of US counties

Hurricane

Tropical cyclone and hurricane risk

Relatively Low

Higher than 57% of US counties

Risk Overview

About Natural Disaster Risk in Butler County, Pennsylvania

Butler's risk is slightly above average

Butler County's composite risk score of 79.26 places it in the relatively low category, roughly 12 points above Pennsylvania's average of 67.45. While not among the highest-risk areas nationally, Butler residents should still prepare for significant natural hazards.

Moderate risk ranking within Pennsylvania

Butler County ranks in the middle tier of Pennsylvania's 67 counties for overall disaster risk. Its position reflects moderate exposure—not among the state's most vulnerable, but above the least-risk counties.

Comparable to surrounding counties

Butler County's 79.26 score sits between Cambria County (76.43) to the east and Centre County (67.97) to the northeast, suggesting consistent risk levels across this region. Clarion County (30.03) to the north faces significantly lower exposure.

Flooding is Butler's primary concern

Butler County's flood risk score of 89.03 stands as its most prominent hazard and well above state average. While tornado risk (59.80) and earthquake risk (52.13) remain moderate, flooding demands the greatest attention in preparation planning.

Prioritize flood coverage in Butler

With a flood risk score of 89.03, securing standalone flood insurance should be your top home protection priority. Also evaluate your tornado shelter options and maintain an emergency supply kit updated twice yearly.

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
    FloodPrepare
    89th percentile
  2. #2
    TornadoPrepare
    60th percentile
  3. #3
    HurricanePrepare
    57th percentile

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

Risk Advisory: Butler County

Risk Verdict

At the 79th percentile nationally, Butler County experiences a manageable level of natural hazard risk that falls below the U.S. median. High composite risk signals that multiple hazard types are elevated simultaneously; planning for more than one scenario is important in Butler County.

Hazard Breakdown

Flood risk is Butler County's dominant natural hazard, ranked at the 89th percentile nationally under FEMA's National Risk Index. Tornado ranks second at the 60th percentile nationally. Additional tracked hazards include hurricane (57th percentile), earthquake (52th percentile), wildfire (39th percentile).

Preparedness Context

Butler County's dominant hazard is flooding, ranked at the 89th percentile nationally. In addition to flood insurance, residents should identify their nearest evacuation shelter and store key documents in waterproof containers. The county's second-ranked hazard, tornado at the 60th percentile nationally, means Butler County residents face compounding risks from multiple natural hazard types during peak seasons. Butler County's county emergency management office publishes hazard-specific guidance tailored to local conditions; bookmarking that resource and the county's alert system is a practical first step for any household.

Regional Context

Butler County falls 11.8 points above Pennsylvania's typical county risk level, which means the hazard environment here is notably more demanding than the state baseline.

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, PA?
Butler County has a FEMA National Risk Index rating of Relatively Low, placing it in the 79th 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: flooding (89th percentile), tornado (60th percentile), hurricane (57th percentile), earthquake (52th percentile), wildfire (39th percentile). The highest-risk hazard is flooding at the 89th 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 Pennsylvania average?
Butler County's composite risk percentile is 79th, compared to the Pennsylvania state average of 67th percentile. The state's overall risk rating is Relatively Low. This means Butler County faces higher natural disaster risk than the typical county in Pennsylvania.
Is Butler County at risk for flooding?
Yes, Butler County's flooding risk is at the 89th percentile nationally. This places it in the top quartile for this hazard type.
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 79th percentile is above the Pennsylvania state average of 67th percentile. This elevated risk is driven by flooding exposure (89th percentile), along with tornado and hurricane 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.