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

Guernsey County Disaster Risk

Guernsey County, Ohio

FEMA Risk Rating

Very Low

National Percentile

38th

of 3,144 counties

State Rank

#65

of 88 (1 = highest risk)

Flood Risk

59th

percentile

Hazard Risk Breakdown

Flood

River, coastal, and surface flooding risk

Relatively Low

Higher than 59% of US counties

Wildfire

Wildland and wildland-urban interface fire risk

Very Low

Higher than 31% of US counties

Tornado

Tornado and severe thunderstorm risk

Very Low

Higher than 37% of US counties

Earthquake

Seismic activity and ground shaking risk

Very Low

Higher than 38% of US counties

Hurricane

Tropical cyclone and hurricane risk

Very Low

Higher than 41% of US counties

Risk Overview

About Natural Disaster Risk in Guernsey County, Ohio

Guernsey County ranks among safest U.S. counties

With a composite risk score of 37.50, Guernsey County sits well below the national average, placing it in the safer tier of American counties. The county's eastern Ohio location and terrain create relatively low exposure across most hazard categories.

Below-average risk within Ohio

Guernsey County's score of 37.50 sits comfortably below Ohio's state average of 55.03, ranking it among the safer Ohio counties. The rural, eastern location insulates it from many of the natural disaster pressures affecting more populated state areas.

Among the lowest-risk counties in region

Guernsey County's 37.50 score outperforms surrounding Jefferson and Belmont Counties, which score in the 42–50 range. Its position in eastern Ohio provides protection from major flood corridors and high-frequency tornado paths.

Flood and earthquake pose modest threats

Guernsey County's flood risk reaches 58.91 and earthquake risk 38.49, both manageable compared to state and national benchmarks. Tornado risk (36.77) and hurricane risk (40.72) remain well-controlled, with wildfire risk negligible at 31.11.

Standard insurance meets most protection needs

Guernsey County's low overall risk means standard homeowners insurance typically provides adequate coverage for most residents. Homeowners in flood-prone valley areas should still consider flood insurance as a prudent addition, and a basic emergency preparedness plan ensures readiness for the modest tornado and earthquake risks the county faces.

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

Preparedness Guide

What to Prepare for in Guernsey County

Top Hazards by Exposure

  1. #1
    FloodPrepare
    59th percentile
  2. #2
    HurricanePrepare
    41th percentile
  3. #3
    EarthquakePrepare
    38th percentile

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

Risk Advisory: Guernsey County

Risk Verdict

Natural disaster exposure in Guernsey County is lower than roughly three-quarters of U.S. counties, with a composite score at the 38th percentile. Guernsey County's 38th percentile ranking is favorable, though every county carries at least one natural hazard worth knowing — reviewing the specific risks listed above helps households focus their preparedness where it matters most.

Hazard Breakdown

Flood risk is Guernsey County's dominant natural hazard, ranked at the 59th percentile nationally under FEMA's National Risk Index. Hurricane ranks second at the 41th percentile nationally. Additional tracked hazards include earthquake (38th percentile), tornado (37th percentile), wildfire (31th percentile).

Preparedness Context

With flood ranked as the primary hazard at the 59th percentile nationally, Guernsey County households should build a go-bag that includes important documents, medications, and supplies to sustain the family for at least three days if evacuation is needed. Secondary hurricane exposure at the 41th percentile adds a second preparedness layer; households should review coverage options and alert sign-up for both hazard types. A waterproof container for documents (insurance policies, ID, prescriptions) and a clear household communication plan for when phone networks are congested are the two highest-value low-cost preparedness steps for Guernsey County households.

Regional Context

Guernsey County is 17.5 composite risk points below the Ohio state mean, meaning most other Ohio counties face higher natural hazard exposure.

Is your household prepared for Guernsey 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 Guernsey County, OH?
Guernsey County has a FEMA National Risk Index rating of Very Low, placing it in the 38th 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 Guernsey County?
Guernsey County is evaluated for five major natural hazard types: flooding (59th percentile), hurricane (41th percentile), earthquake (38th percentile), tornado (37th percentile), wildfire (31th percentile). The highest-risk hazard is flooding at the 59th 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 Guernsey County risk compare to the Ohio average?
Guernsey County's composite risk percentile is 38th, compared to the Ohio state average of 55th percentile. The state's overall risk rating is Relatively Low. This means Guernsey County faces lower natural disaster risk than the typical county in Ohio.
Is Guernsey County at risk for flooding?
Yes, Guernsey County's flooding risk is at the 59th 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 Guernsey County a safe place to live?
Guernsey County's composite risk score of 38th 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 59th 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.