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 very high for a U.S. community. Flood insurance has paid 66 claims here since 1979.

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

Expected damage

How exposed is Union?

Very high

vs. U.S. communities

FEMA expects yearly storm and flood damage to homes and buildings in Union to be higher than in 89% of U.S. communities, mostly from inland flooding.

Inland flooding90%Everything else11%

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

90% of expected damage

Well above average · higher than 97% of U.S. places

Recorded about 3 times a year in the area

Lower here

HurricanesTornadoesHailIce stormsWinter weatherCold wavesHeat wavesWildfireEarthquakesLandslidesStrong windLightningDrought

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 Union flood?

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

66paid claims since 1979

$1.1Mpaid to owners

0homes flooded more than once

19792026

Biggest named events

Not a named storm: 10 claims, $13K
Central U.S. April Flooding: 1 claim, $67K

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: Brown County.

Disasters that hit Union

Federal disasters declared here

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

Brought FEMA money into UnionDeclared for Brown County only

Brown County has had 16 natural disasters declared since 1953, most often severe storms and floods.

Around Union

Union and the towns around it

Very lowLowModerateHighVery high

Unionmostly inland floodingVery high

Ripleymostly inland floodingVery high

Huntingtonmostly inland floodingVery high

Byrdmostly inland floodingVery high

Maysvillemostly inland floodingHigh

Jeffersonmostly inland floodingModerate

Pleasantmostly 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. Union covers 1 census tract, combined by population.

Money that reached townFlood claims are matched to Union’s own flood-insurance community (here, the census tracts inside it); 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.

FEMA’s expected losses across Union total about $3.1M 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.