Natural hazards · St. Henry

St. Henry, OH natural hazards

Most of the natural-hazard damage FEMA expects in St. Henry comes from inland flooding, and overall the risk is low for a U.S. community. 3 federal disasters brought FEMA money into town.

FEMA National Risk Index, December 2025 · OpenFEMA claims, aid & declarations

Expected damage

How exposed is St. Henry?

Low

vs. U.S. communities

FEMA expects yearly storm and flood damage to homes and buildings in St. Henry to be higher than in 22% of U.S. communities, mostly from inland flooding and tornadoes.

Inland flooding42%Tornadoes27%Earthquakes14%Strong wind6%Hail5%Everything else7%

By hazard

What St. Henry faces

Each hazard’s share of the damage FEMA expects here, and how that compares with the rest of the country.

Inland flooding

42% of expected damage

Well below average · higher than 13% of U.S. places

Recorded about 2 times a year in the area

Tornadoes

27% of expected damage

Well above average · higher than 95% of U.S. places

Recorded about once every 19 years in the area

Earthquakes

14% of expected damage

Well above average · higher than 76% of U.S. places

Strong wind

6% of expected damage

Well above average · higher than 82% of U.S. places

Recorded about 3 times a year in the area

Hail

5% of expected damage

Well above average · higher than 83% of U.S. places

Recorded about 4 times a year in the area

Lower here

HurricanesIce stormsWinter weatherCold wavesHeat wavesWildfireLandslidesLightning

Not a risk here

Coastal floodingDroughtAvalanchesTsunamisVolcanic activity

Flood risk changes street by street. Check a specific address on FEMA’s flood map, and ask about flood insurance before you buy.

Flood insurance claims

Does St. Henry flood?

FEMA's records show no paid flood insurance claims in St. Henry.

of homes in flood zones
are insured

of all homes
are insured

No community discount. St. Henry isn’t in FEMA’s Community Rating System, which cuts flood insurance up to 45% in towns that do extra flood-proofing.

Insurance rates: Mercer County.

What’s been done with FEMA grants

1storm safe rooms built

Disasters that hit St. Henry

3 federal disasters brought FEMA money here

Disasters the President declared that paid out in St. Henry itself: aid to households, or repair grants to the Village of St. Henry.

Brought FEMA money into St. HenryDeclared for Mercer County only

2019

Severe Storms, Straight-Line Winds, Tornadoes, Flooding, Landslides, and Mudslide

1 household applied for aid

2004

Severe Winter Storms, Flooding, and Mudslides

$46K to the Village of St. Henry for repairs

2003

Severe Storms and Flooding

2 households applied for aid $646 aid approved

Mercer County has had 12 natural disasters declared since 1953, most often severe storms and tornadoes.

About these numbers

How to read this page

An average, not a forecastFEMA’s National Risk Index estimates the damage 18 kinds of natural hazards cause in a typical year, from decades of records and models. A quiet decade can follow a bad year.

Compared by rate“Higher than N%” compares yearly damage as a share of what’s here, so a big city isn’t rated riskier just for having more buildings. St. Henry is smaller than a census tract, so it shares the figures of the tract around its center.

Money that reached townFlood claims are matched to St. Henry’s own flood-insurance community; household aid to the registrant’s city; repair grants to the Village of St. Henry. FEMA’s model follows property values, so a place that recently lost many homes can rate lower than it feels.

Sources: FEMA National Risk Index (December 2025); OpenFEMA: NFIP redacted claims, multiple-loss properties, community status book and residential penetration rates, housing assistance (owners and renters), public assistance funded projects, hazard mitigation properties and disaster declarations. Census tracts: U.S. Census Bureau.