Logan County, Ohio Natural Disaster Risk
FEMA National Risk Index assessment · OH
LowComposite Risk Score
National percentile: 53th
Logan County faces low composite natural disaster risk (NRI Risk Index score 53.2, 53th national percentile), driven primarily by hail and ice storm exposure. Expected annual loss across all 18 hazard types is $19M.
Source: FEMA National Risk Index v1.20 · Updated December 2025
Risk Overview
FEMA's National Risk Index rates Logan County at low composite risk, with a National Risk Index score of 53.2 out of 100 — placing it in the 53rd national percentile and below the national average for natural-disaster risk. The score blends Expected Annual Loss, Social Vulnerability, and Community Resilience across all 18 FEMA hazard types.
Risk here concentrates in hail (ice stones from severe thunderstorms that damage property and crops) at Medium risk — $761K in expected annual loss and about 3.32 events per year; ice storm (freezing rain that coats surfaces in heavy, damaging ice) at Medium risk — $313K in expected annual loss and about 0.72 events per year; and winter weather (heavy snow, blizzards, and hazardous winter conditions) at Medium risk — $136K in expected annual loss and about 11.89 events per year. Across all hazards, FEMA estimates $19M in expected annual loss for a population of 46K.
Beyond physical exposure, Logan County has a low social vulnerability rating (how susceptible the population is to harm) and a very high community resilience rating (its capacity to prepare for and recover from disasters). A less vulnerable population paired with strong resilience helps the community absorb and recover from events.
History supports the rating: Logan County has received 14 federal disaster declarations since 1978, including 8 for severe storm events and 2 for biological events. The most recent was Tornadoes (tornado), declared in May 2024.
Among 88 Ohio counties, Logan County ranks #48 for overall natural disaster risk.
Top Hazards
All 18 Hazard Risks
| Hail | Medium | 3.32 / yr | $761K |
| Ice Storm | Medium | 0.72 / yr | $313K |
| Winter Weather | Medium | 11.89 / yr | $136K |
| Earthquake | Low | 0.00 / yr | $806K |
| Riverine Flood | Low | 2.14 / yr | $13M |
| Landslide | Low | 0.12 / yr | $4K |
| Tornado | Low | 0.30 / yr | $2M |
| Cold Wave | Low | 4.95 / yr | $1M |
| Strong Wind | Low | 2.54 / yr | $514K |
| Lightning | Low | 44.39 / yr | $198K |
| Hurricane | Very Low | 0.01 / yr | $26K |
| Heat Wave | Very Low | 3.79 / yr | $128K |
| Drought | Very Low | 0.33 / yr | $18K |
| Wildfire | Very Low | 0.00 / yr | $2K |
| Avalanche | Very Low | 0.00 / yr | $0 |
| Coastal Flood | Very Low | 0.00 / yr | $0 |
| Tsunami | Very Low | 0.00 / yr | $0 |
| Volcanic Activity | Very Low | 0.00 / yr | $0 |
Disaster History
Logan County has received 14 federal disaster declarations since 1978, most recently Tornadoes in May 2024. Most frequent causes: Severe Storm (8), Biological (2), Snowstorm (2).
| Declared | Type | Disaster |
|---|---|---|
| May 2024 | Tornado | Tornadoes |
| March 2020 | Biological | Covid-19 Pandemic |
| March 2020 | Biological | Covid-19 |
| August 2012 | Severe Storm | Severe Storms and Straight-Line Winds |
| June 2012 | Severe Storm | Severe Storms |
| September 2005 | Hurricane | Hurricane Katrina Evacuation |
| February 2005 | Severe Storm | Severe Winter Storms, Flooding, and Mudslides |
| January 2005 | Snowstorm | Snow |
| September 2004 | Severe Storm | Severe Storms and Flooding |
| June 2004 | Severe Storm | Severe Storms and Flooding |
Showing the 10 most recent of 14 declarations.
Source: FEMA Disaster Declarations Summaries (OpenFEMA).
Frequently Asked Questions
What is the overall natural disaster risk for Logan County?
Logan County has a composite FEMA National Risk Index score of 53.2 out of 100, placing it in the Low category and the 53th national percentile. This combines Expected Annual Loss, Social Vulnerability, and Community Resilience across 18 hazard types.
What are the top natural hazards in Logan County?
The three highest-rated hazards are Hail (Medium, $761K EAL), Ice Storm (Medium, $313K EAL), Winter Weather (Medium, $136K EAL). These account for most of the county's expected annual losses.
How does Logan County compare to other Ohio counties?
Logan County ranks #48 of 88 Ohio counties for overall natural disaster risk, with a low rating.
How many federally declared disasters has Logan County had?
FEMA records 14 federal disaster declarations for Logan County since 1978, most often 8 for severe storm events and 2 for biological events. The most recent was Tornadoes, declared in May 2024.
What does Expected Annual Loss (EAL) mean?
EAL is FEMA's estimate of average annual dollar losses from natural hazards, calculated from historical event data and exposure models. Logan County's $19M EAL is a statistical average, not a guarantee for any specific year or address.