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

Logan County Disaster Risk

Logan County, Ohio

FEMA Risk Rating

Relatively Low

National Percentile

53th

of 3,144 counties

State Rank

#48

of 88 (1 = highest risk)

Flood Risk

68th

percentile

Hazard Risk Breakdown

Flood

River, coastal, and surface flooding risk

Relatively Low

Higher than 68% of US counties

Wildfire

Wildland and wildland-urban interface fire risk

Very Low

Higher than 7% of US counties

Tornado

Tornado and severe thunderstorm risk

Relatively Low

Higher than 61% of US counties

Earthquake

Seismic activity and ground shaking risk

Relatively Low

Higher than 69% of US counties

Hurricane

Tropical cyclone and hurricane risk

Very Low

Higher than 37% of US counties

Risk Overview

About Natural Disaster Risk in Logan County, Ohio

Logan County's below-average risk profile

With a composite risk score of 53.21, Logan County falls slightly below the national average and carries a Relatively Low rating. This positioning reflects one of the safer natural hazard environments in the region.

One of Ohio's safer counties

Logan County's 53.21 score sits just below Ohio's 55.03 state average, placing it in the lower-risk tier of the state. It represents one of the safer counties for natural hazard exposure in Ohio.

Lower risk than most adjacent counties

Logan County's 53.21 score is notably lower than surrounding counties in northwest Ohio, making it a safer-than-average area. Its minimal wildfire risk (6.68) particularly distinguishes it from regional norms.

Earthquakes and tornadoes are primary hazards

Earthquake risk unexpectedly reaches 69.21 in Logan County, the highest among its hazard exposures, likely due to regional seismic activity. Tornado risk (61.20) and flood exposure (67.68) are secondary concerns but still measurable.

Focus on earthquake and tornado coverage

Logan County residents should ensure their homeowners policies include earthquake protection, which is often sold separately and frequently overlooked. Standard wind and tornado coverage is also important given the 61.20 tornado score.

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

Preparedness Guide

What to Prepare for in Logan County

Top Hazards by Exposure

  1. #1
    EarthquakePrepare
    69th percentile
  2. #2
    FloodPrepare
    68th percentile
  3. #3
    TornadoPrepare
    61th percentile

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

Risk Advisory: Logan County

Risk Verdict

Natural hazard pressure in Logan County is below the national midpoint, with a composite score at the 53th percentile. Proactive emergency planning and awareness of the specific hazards driving Logan County's score can meaningfully reduce household risk.

Hazard Breakdown

Earthquake risk is Logan County's dominant natural hazard, ranked at the 69th percentile nationally under FEMA's National Risk Index. Flood ranks second at the 68th percentile nationally. Additional tracked hazards include tornado (61th percentile), hurricane (37th percentile), wildfire (7th percentile).

Preparedness Context

Earthquake exposure at the 69th percentile nationally puts Logan County in a zone where utilities — gas, water, electrical — are the most common post-quake hazard. Knowing how to shut off the main gas valve is an important household skill to develop before an event occurs. The county's flood risk at the 68th percentile nationally is a seasonal consideration alongside the year-round earthquake threat, requiring awareness of both hazard types. Logan County households benefit from keeping shoes and a flashlight near the bed — post-earthquake navigation through debris in the dark is a common cause of secondary injury. This low-cost step has outsized protective value.

Regional Context

Logan County's risk score is broadly comparable to the Ohio county average, with a 1.8-point gap that places the county near the center of the state's hazard distribution.

Is your household prepared for Logan 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 Logan County, OH?
Logan County has a FEMA National Risk Index rating of Relatively Low, placing it in the 53th 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 Logan County?
Logan County is evaluated for five major natural hazard types: earthquake (69th percentile), flooding (68th percentile), tornado (61th percentile), hurricane (37th percentile), wildfire (7th percentile). The highest-risk hazard is earthquake at the 69th 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 Logan County risk compare to the Ohio average?
Logan County's composite risk percentile is 53th, compared to the Ohio state average of 55th percentile. The state's overall risk rating is Relatively Low. This means Logan County faces lower natural disaster risk than the typical county in Ohio.
Is Logan County at risk for earthquake?
Yes, Logan County's earthquake risk is at the 69th percentile nationally. This is above the national median. For flooding specifically, Logan County is at the 68th 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.
Is Logan County a safe place to live?
Logan County's composite risk score of 53th 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 earthquake at the 69th 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.