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

Warren County Disaster Risk

Warren County, Pennsylvania

FEMA Risk Rating

Relatively Low

National Percentile

66th

of 3,144 counties

State Rank

#41

of 67 (1 = highest risk)

Flood Risk

83th

percentile

Hazard Risk Breakdown

Flood

River, coastal, and surface flooding risk

Moderate

Higher than 83% of US counties

Wildfire

Wildland and wildland-urban interface fire risk

Very Low

Higher than 12% of US counties

Tornado

Tornado and severe thunderstorm risk

Very Low

Higher than 22% of US counties

Earthquake

Seismic activity and ground shaking risk

Very Low

Higher than 21% of US counties

Hurricane

Tropical cyclone and hurricane risk

Relatively Low

Higher than 57% of US counties

Risk Overview

About Natural Disaster Risk in Warren County, Pennsylvania

Warren faces moderate-to-high national risk

Warren County scores 65.55 nationally, approaching the higher end of U.S. disaster vulnerability and well above the American average. This positioning indicates residents face substantial natural hazard exposure across multiple hazard types requiring serious preparedness attention.

Slightly below state average within Pennsylvania

Warren County's score of 65.55 falls just below Pennsylvania's average of 67.45, placing it in the relatively low-risk tier statewide despite national positioning. However, the county remains among the more exposed communities within its own state.

Higher risk than most regional peers

Warren County (65.55) carries greater hazard exposure than neighboring Venango County (55.60) and Susquehanna County (53.59), driven primarily by its exceptionally high flood risk of 82.82. Only Washington County among nearby counties exceeds Warren's disaster vulnerability.

Flood is Warren's dominant hazard

Warren County's critical exposure is flood risk at 82.82, among the highest in Pennsylvania and substantially above the state average. Hurricane risk (57.15) and tornado risk (21.95) add secondary concerns, though neither matches the intensity of water-related hazards.

Prioritize flood insurance immediately

Warren County residents must secure dedicated flood insurance given the county's exceptionally high flood risk score of 82.82. Combined with comprehensive homeowners coverage, flood protection is essential for financial security in this high-water-exposure community.

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

Preparedness Guide

What to Prepare for in Warren County

Top Hazards by Exposure

  1. #1
    FloodPrepare
    83th percentile
  2. #2
    HurricanePrepare
    57th percentile
  3. #3
    TornadoPrepare
    22th percentile

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

Risk Advisory: Warren County

Risk Verdict

Warren County's FEMA risk score places it at the 66th percentile nationally, indicating lower-than-typical exposure for a U.S. county. A moderate composite score often means one or two hazard categories are doing the heavy lifting — knowing which ones matters for preparation.

Hazard Breakdown

Flood risk is Warren County's dominant natural hazard, ranked at the 83th percentile nationally under FEMA's National Risk Index. Hurricane ranks second at the 57th percentile nationally. Additional tracked hazards include tornado (22th percentile), earthquake (21th percentile), wildfire (12th percentile).

Preparedness Context

At the 83th percentile nationally for flood risk, Warren County residents benefit from understanding their specific flood zone status. Even one inch of floodwater causes significant structural damage to properties outside officially designated high-risk zones. Alongside flooding, hurricane exposure at the 57th percentile means households benefit from a multi-hazard preparedness plan rather than focusing on flood alone. A tested family preparedness plan specific to Warren County's primary hazards — including how to shelter in place or evacuate, and who to call — provides more real protection than a general emergency kit sitting unused on a shelf.

Regional Context

Warren County sits within 1.9 composite points of the Pennsylvania state average, suggesting the county's hazard exposure is representative of the broader regional pattern.

Is your household prepared for Warren 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 Warren County, PA?
Warren County has a FEMA National Risk Index rating of Relatively Low, placing it in the 66th 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 Warren County?
Warren County is evaluated for five major natural hazard types: flooding (83th percentile), hurricane (57th percentile), tornado (22th percentile), earthquake (21th percentile), wildfire (12th percentile). The highest-risk hazard is flooding at the 83th 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 Warren County risk compare to the Pennsylvania average?
Warren County's composite risk percentile is 66th, compared to the Pennsylvania state average of 67th percentile. The state's overall risk rating is Relatively Low. This means Warren County faces lower natural disaster risk than the typical county in Pennsylvania.
Is Warren County at risk for flooding?
Yes, Warren County's flooding risk is at the 83th 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.
Is Warren County a safe place to live?
Warren County's composite risk score of 66th percentile is below the Pennsylvania state average of 67th percentile, indicating relatively lower exposure to natural hazards. However, no county is completely risk-free. The primary hazard type is flooding at the 83th 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.