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

Seneca County Disaster Risk

Seneca County, Ohio

FEMA Risk Rating

Relatively Low

National Percentile

47th

of 3,144 counties

State Rank

#56

of 88 (1 = highest risk)

Flood Risk

61th

percentile

Hazard Risk Breakdown

Flood

River, coastal, and surface flooding risk

Relatively Low

Higher than 61% of US counties

Wildfire

Wildland and wildland-urban interface fire risk

Very Low

Higher than 3% of US counties

Tornado

Tornado and severe thunderstorm risk

Relatively Low

Higher than 58% of US counties

Earthquake

Seismic activity and ground shaking risk

Relatively Low

Higher than 57% of US counties

Hurricane

Tropical cyclone and hurricane risk

Relatively Low

Higher than 44% of US counties

Risk Overview

About Natural Disaster Risk in Seneca County, Ohio

Seneca ranks well below national risk

Seneca County's composite risk score of 46.85 places it in the relatively low category and well below the national average, making it one of America's safer counties for natural disasters. This low score reflects minimal wildfire threat and moderate exposure to other hazards.

One of Ohio's safest counties

Seneca County's 46.85 score falls well below Ohio's state average of 55.03, ranking it among the state's lowest-risk regions. Only a handful of Ohio counties have composite risk scores lower than Seneca's.

Seneca offers relative safety in region

Seneca's 46.85 score sits between the very-low-risk Union County (32.73) and the moderate-risk Stark County (87.95), making it a safer choice than most neighboring counties. Its tornado risk of 58.02 is notably higher than its flood risk of 61.16, distinguishing it from regional patterns.

Tornadoes pose the main threat

Seneca County's primary natural disaster concern is tornado risk at 58.02, significantly elevated compared to its minimal wildfire risk of just 2.83. Flood and earthquake risks remain moderate at 61.16 and 57.09 respectively.

Focus on tornado and wind coverage

Ensure your homeowner's policy includes strong wind and hail protection against tornadoes, Seneca's dominant hazard. Standard coverage typically addresses this, but verify your policy's tornado and wind deductible applies to your situation.

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

Preparedness Guide

What to Prepare for in Seneca County

Top Hazards by Exposure

  1. #1
    FloodPrepare
    61th percentile
  2. #2
    TornadoPrepare
    58th percentile
  3. #3
    EarthquakePrepare
    57th percentile

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

Risk Advisory: Seneca County

Risk Verdict

Natural hazard pressure in Seneca County is below the national midpoint, with a composite score at the 47th percentile. Being ranked at the 47th percentile nationally is an advantage for Seneca County — it means fewer statistically likely events, though basic readiness ensures households are covered when exceptions occur.

Hazard Breakdown

Flood risk is Seneca County's dominant natural hazard, ranked at the 61th percentile nationally under FEMA's National Risk Index. Tornado ranks second at the 58th percentile nationally. Additional tracked hazards include earthquake (57th percentile), hurricane (44th percentile), wildfire (3th percentile).

Preparedness Context

Flood risk is Seneca County's top hazard at the 61th percentile nationally. Households in or near designated flood zones face elevated financial exposure; flood insurance typically requires a 30-day waiting period before it takes effect, so applying before the season is advisable. Alongside flooding, tornado exposure at the 58th percentile means households benefit from a multi-hazard preparedness plan rather than focusing on flood alone. Households across Seneca County should identify the nearest community shelter and keep a basic emergency kit — water, non-perishable food, medications, flashlight, and battery radio — in a location easy to grab quickly.

Regional Context

Seneca County's composite risk score sits 8.2 points below the Ohio county average, reflecting a more favorable hazard environment than the state typical.

Is your household prepared for Seneca 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 Seneca County, OH?
Seneca County has a FEMA National Risk Index rating of Relatively Low, placing it in the 47th 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 Seneca County?
Seneca County is evaluated for five major natural hazard types: flooding (61th percentile), tornado (58th percentile), earthquake (57th percentile), hurricane (44th percentile), wildfire (3th percentile). The highest-risk hazard is flooding at the 61th 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 Seneca County risk compare to the Ohio average?
Seneca County's composite risk percentile is 47th, compared to the Ohio state average of 55th percentile. The state's overall risk rating is Relatively Low. This means Seneca County faces lower natural disaster risk than the typical county in Ohio.
Is Seneca County at risk for flooding?
Yes, Seneca County's flooding risk is at the 61th percentile nationally. This is above the national median.
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 Seneca County a safe place to live?
Seneca County's composite risk score of 47th percentile is below the Ohio state average of 55th percentile, indicating relatively lower exposure to natural hazards. However, no county is completely risk-free. The primary hazard type is flooding at the 61th 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.