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

Shelby County Disaster Risk

Shelby County, Ohio

FEMA Risk Rating

Relatively Low

National Percentile

56th

of 3,144 counties

State Rank

#46

of 88 (1 = highest risk)

Flood Risk

63th

percentile

Hazard Risk Breakdown

Flood

River, coastal, and surface flooding risk

Relatively Low

Higher than 63% of US counties

Wildfire

Wildland and wildland-urban interface fire risk

Very Low

Higher than 10% of US counties

Tornado

Tornado and severe thunderstorm risk

Relatively Low

Higher than 69% of US counties

Earthquake

Seismic activity and ground shaking risk

Moderate

Higher than 87% of US counties

Hurricane

Tropical cyclone and hurricane risk

Very Low

Higher than 41% of US counties

Risk Overview

About Natural Disaster Risk in Shelby County, Ohio

Shelby ranks near national average

Shelby County's composite risk score of 56.20 places it in the relatively low category, just slightly above the national average for disaster risk. This balanced profile means residents face moderate exposure comparable to most American counties.

Near Ohio's state average risk

Shelby County's 56.20 score sits just above Ohio's state average of 55.03, making it a fairly typical Ohio county in terms of natural disaster risk. It ranks in the middle tier of Ohio's 88 counties by risk level.

Shelby sits between high and low-risk neighbors

Shelby's 56.20 score falls between the very-low-risk Union County (32.73) and the higher-risk Stark County (87.95), positioning it as an average-risk area regionally. Its distinctive earthquake risk of 86.55 is notably higher than neighboring counties.

Earthquakes and tornadoes lead threats

Shelby County faces unusual earthquake risk at 86.55—among Ohio's highest—combined with strong tornado risk of 68.54. Flood risk of 63.33 adds a third concern, though wildfire remains minimal at 10.34.

Earthquake and storm protection essential

Shelby residents should prioritize earthquake insurance and verify their homeowner's policy covers tornado and wind damage thoroughly. Earthquake insurance requires a separate policy and protects against Shelby's unusually high seismic risk.

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

Preparedness Guide

What to Prepare for in Shelby County

Top Hazards by Exposure

  1. #1
    EarthquakePrepare
    87th percentile
  2. #2
    TornadoPrepare
    69th percentile
  3. #3
    FloodPrepare
    63th percentile

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

Risk Advisory: Shelby County

Risk Verdict

At the 56th percentile nationally, Shelby County experiences a manageable level of natural hazard risk that falls below the U.S. median. Shelby County's risk profile calls for targeted preparedness, focusing on the hazard categories that dominate the county's score.

Hazard Breakdown

Earthquake risk is Shelby County's dominant natural hazard, ranked at the 87th percentile nationally under FEMA's National Risk Index. Tornado ranks second at the 69th percentile nationally. Additional tracked hazards include flood (63th percentile), hurricane (41th percentile), wildfire (10th percentile).

Preparedness Context

Shelby County's primary hazard, earthquake, ranks at the 87th percentile nationally. Unreinforced masonry structures carry the highest injury risk during seismic events; residents in older buildings should check with their municipality about available seismic retrofit programs. Tornado at the 69th percentile nationally is a separate hazard dimension for Shelby County that requires different protective strategies from earthquake preparedness. After a major earthquake, Shelby County residents should expect water service disruption for 24 to 72 or more hours. Storing a minimum of one gallon per person per day for three days — before any event — is the most direct preparedness action households can take.

Regional Context

At 1.2 points from the Ohio county mean, Shelby County's overall disaster risk profile is close to typical for this state, with no dramatic deviation in either direction.

Is your household prepared for Shelby 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 Shelby County, OH?
Shelby County has a FEMA National Risk Index rating of Relatively Low, placing it in the 56th 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 Shelby County?
Shelby County is evaluated for five major natural hazard types: earthquake (87th percentile), tornado (69th percentile), flooding (63th percentile), hurricane (41th percentile), wildfire (10th percentile). The highest-risk hazard is earthquake at the 87th 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 Shelby County risk compare to the Ohio average?
Shelby County's composite risk percentile is 56th, compared to the Ohio state average of 55th percentile. The state's overall risk rating is Relatively Low. This means Shelby County faces higher natural disaster risk than the typical county in Ohio.
Is Shelby County at risk for earthquake?
Yes, Shelby County's earthquake risk is at the 87th percentile nationally. This places it in the top quartile for this hazard type. For flooding specifically, Shelby County is at the 63th 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 Shelby County higher risk than average?
Shelby County's composite risk score of 56th percentile is above the Ohio state average of 55th percentile. This elevated risk is driven by earthquake exposure (87th percentile), along with tornado and flooding 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.