Natural hazards · Union

Union, KS 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 73% of U.S. communities, mostly from inland flooding and tornadoes.

Inland flooding26%Tornadoes20%Wildfire18%Hail14%Cold waves7%Heat waves5%Everything else10%

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

26% of expected damage

Above average · higher than 56% of U.S. places

Recorded about 3 times a year in the area

Tornadoes

20% of expected damage

Well above average · higher than 90% of U.S. places

Recorded about once every 4 years in the area

Wildfire

18% of expected damage

Well above average · higher than 98% of U.S. places

Hail

14% of expected damage

Well above average · higher than 86% of U.S. places

Recorded about 9 times a year in the area

Cold waves

7% of expected damage

Below average · higher than 35% of U.S. places

Recorded about 2 times a year in the area

Heat waves

5% of expected damage

Well above average · among the top 1% of U.S. places

Recorded about 14 times a year in the area

Lower here

HurricanesIce stormsWinter weatherEarthquakesLandslidesStrong 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?

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: Butler County.

Disasters that hit Union

Federal disasters declared here

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

Brought FEMA money into UnionDeclared for Butler County only

Butler County has had 25 natural disasters declared since 1953, most often severe storms and floods.

Around Union

Union and the towns around it

Very lowLowModerateHighVery high

Union Centermostly inland floodingVery high

Harveymostly inland floodingVery high

Unionmostly inland floodingHigh

Claymostly inland floodingHigh

Hickorymostly inland floodingHigh

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.