Henry County, Ohio Natural Disaster Risk
FEMA National Risk Index assessment · OH
Very LowComposite Risk Score
National percentile: 34th
Henry County faces very low composite natural disaster risk (NRI Risk Index score 33.8, 34th national percentile), driven primarily by hail and ice storm exposure. Expected annual loss across all 18 hazard types is $13M.
Source: FEMA National Risk Index v1.20 · Updated December 2025
Risk Overview
Henry County carries a very low composite natural disaster risk, with a National Risk Index score of 33.8 out of 100 — placing it in the 34th national percentile and among the lowest-risk counties in the country. 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 Low risk — $563K in expected annual loss and about 3.30 events per year; ice storm (freezing rain that coats surfaces in heavy, damaging ice) at Low risk — $161K in expected annual loss and about 1.38 events per year; and riverine flood (rivers and streams overflowing their banks after heavy rain or snowmelt) at Low risk — $10M in expected annual loss and about 0.43 events per year. Across all hazards, FEMA estimates $13M in expected annual loss for a population of 28K.
Beyond physical exposure, Henry County has a very 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.
The county's disaster history tells the same story: Henry County has received 10 federal disaster declarations since 1977, including 4 for severe storm events and 2 for biological events. The most recent was Covid-19 Pandemic (biological), declared in March 2020.
Among 88 Ohio counties, Henry County ranks #69 for overall natural disaster risk.
Top Hazards
All 18 Hazard Risks
| Hail | Low | 3.30 / yr | $563K |
| Ice Storm | Low | 1.38 / yr | $161K |
| Riverine Flood | Low | 0.43 / yr | $10M |
| Earthquake | Very Low | 0.00 / yr | $397K |
| Tornado | Low | 0.22 / yr | $1M |
| Drought | Low | 0.27 / yr | $87K |
| Winter Weather | Low | 9.79 / yr | $51K |
| Hurricane | Very Low | 0.01 / yr | $30K |
| Strong Wind | Low | 3.93 / yr | $410K |
| Landslide | Very Low | 0.07 / yr | $425 |
| Cold Wave | Low | 3.32 / yr | $482K |
| Lightning | Low | 39.52 / yr | $104K |
| Heat Wave | Very Low | 4.26 / yr | $110K |
| Wildfire | Very Low | 0.00 / yr | $1K |
| 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
Henry County has received 10 federal disaster declarations since 1977, most recently Covid-19 Pandemic in March 2020. Most frequent causes: Severe Storm (4), Biological (2), Snowstorm (2).
| Declared | Type | Disaster |
|---|---|---|
| March 2020 | Biological | Covid-19 Pandemic |
| March 2020 | Biological | Covid-19 |
| June 2012 | Severe Storm | Severe Storms |
| September 2005 | Hurricane | Hurricane Katrina Evacuation |
| February 2005 | Severe Storm | Severe Winter Storms, Flooding, and Mudslides |
| September 2004 | Severe Storm | Severe Storms and Flooding |
| November 2002 | Severe Storm | Severe Storms and Tornadoes |
| March 1982 | Flood | Severe Storms & Flooding |
| January 1978 | Snowstorm | Blizzards & Snowstorms |
| February 1977 | Snowstorm | Snowstorms |
Source: FEMA Disaster Declarations Summaries (OpenFEMA).
Frequently Asked Questions
What is the overall natural disaster risk for Henry County?
Henry County has a composite FEMA National Risk Index score of 33.8 out of 100, placing it in the Very Low category and the 34th national percentile. This combines Expected Annual Loss, Social Vulnerability, and Community Resilience across 18 hazard types.
What are the top natural hazards in Henry County?
The three highest-rated hazards are Hail (Low, $563K EAL), Ice Storm (Low, $161K EAL), Riverine Flood (Low, $10M EAL). These account for most of the county's expected annual losses.
How does Henry County compare to other Ohio counties?
Henry County ranks #69 of 88 Ohio counties for overall natural disaster risk, with a very low rating.
How many federally declared disasters has Henry County had?
FEMA records 10 federal disaster declarations for Henry County since 1977, most often 4 for severe storm events and 2 for biological events. The most recent was Covid-19 Pandemic, declared in March 2020.
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. Henry County's $13M EAL is a statistical average, not a guarantee for any specific year or address.