Natural hazards · Thorn

Thorn, OH natural hazards

Most of the natural-hazard damage FEMA expects in Thorn comes from inland flooding, and overall the risk is low for a U.S. community. Flood insurance has paid 2 claims here since 2017. 5 federal disasters brought FEMA money into town.

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

Expected damage

How exposed is Thorn?

Low

vs. U.S. communities

FEMA expects yearly storm and flood damage to homes and buildings in Thorn to be higher than in 24% of U.S. communities, mostly from inland flooding.

Inland flooding63%Drought10%Tornadoes8%Everything else20%

By hazard

What Thorn faces

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

Inland flooding

63% of expected damage

Below average · higher than 43% of U.S. places

Recorded about 2 times a year in the area

Drought

10% of expected damage

Recorded about 5 times a year in the area

Tornadoes

8% of expected damage

Above average · higher than 59% of U.S. places

Recorded about once every 96 years in the area

Lower here

HurricanesHailIce stormsWinter weatherCold wavesHeat wavesWildfireEarthquakesLandslidesStrong windLightning

Not a risk here

Coastal floodingAvalanchesTsunamisVolcanic 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 Thorn flood?

Every paid claim on a federal flood insurance policy in Thorn, from FEMA’s records.

2paid claims since 2017

$35Kpaid to owners

0homes flooded more than once

20172026

of homes in flood zones
are insured

of all homes
are insured

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

Insurance rates: Perry County.

Disasters that hit Thorn

5 federal disasters brought FEMA money here

Disasters the President declared that paid out in Thorn itself: aid to households, or repair grants to the Township of Thorn.

Brought FEMA money into ThornDeclared for Perry County only

2019

Severe Storms, Flooding, and Landslides

$10K to the Township of Thorn for repairs

2012

Severe Storms and Straight-Line Winds

$5K to the Township of Thorn for repairs

2004

Severe Storms and Flooding

$10K to the Township of Thorn for repairs

2004

Severe Storms, Flooding, Mudslides, and Landslides

$5K to the Township of Thorn for repairs

2003

Severe Winter Storm and Record/Near Record Snow

$2K to the Township of Thorn for repairs

Perry County has had 15 natural disasters declared since 1953, most often severe storms and floods.

Around Thorn

Thorn and the towns around it

Very lowLowModerateHighVery high

Richlandmostly inland floodingModerate

Lickingmostly inland floodingModerate

Hopewellmostly inland floodingLow

Thornmostly inland floodingLow

Thornportmostly inland floodingLow

Harbor Hillsmostly inland floodingLow

Walnutmostly inland floodingVery low

Readingmostly inland floodingVery low

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. Thorn covers 1 census tract, combined by population.

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

FEMA’s expected losses across Thorn total about $880K a year, counting buildings, people and crops.

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.