Natural hazards · Union

Union, OH natural hazards

Most of the natural-hazard damage FEMA expects in Union comes from inland flooding, and overall the risk is high for a U.S. community.

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

Expected damage

How exposed is Union?

High

vs. U.S. communities

FEMA expects yearly storm and flood damage to homes and buildings in Union to be higher than in 74% of U.S. communities, mostly from inland flooding.

Inland flooding73%Tornadoes9%Everything else17%

By hazard

What Union faces

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

Inland flooding

73% of expected damage

Well above average · higher than 88% of U.S. places

Recorded about once every 2 years in the area

Tornadoes

9% of expected damage

Well above average · higher than 80% of U.S. places

Recorded about once every 27 years in the area

Lower here

HurricanesHailIce stormsWinter weatherCold wavesHeat wavesWildfireEarthquakesLandslidesStrong windLightning

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 Union flood?

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

of homes in flood zones
are insured

of all homes
are insured

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

Insurance rates: Putnam County.

Disasters that hit Union

Federal disasters declared here

None of the disasters declared for Putnam County shows FEMA aid or repair money reaching Union itself in FEMA’s records.

Brought FEMA money into UnionDeclared for Putnam County only

Putnam County has had 10 natural disasters declared since 1953, most often severe storms and winter storms.

Around Union

Union and the towns around it

Very lowLowModerateHighVery high

Unionmostly inland floodingHigh

Sugar Creekmostly inland floodingHigh

Jacksonmostly inland floodingHigh

Greensburgmostly inland floodingHigh

Pleasantmostly inland floodingModerate

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. Union 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 Union’s own flood-insurance community; household aid to the registrant’s city; repair grants to the Township of Union. 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.