Natural hazards · Union Star

Union Star, MO natural hazards

Most of the natural-hazard damage FEMA expects in Union Star comes from inland flooding, and overall the risk is moderate for a U.S. community. 1 federal disaster brought FEMA money into town.

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

Expected damage

How exposed is Union Star?

Moderate

vs. U.S. communities

FEMA expects yearly storm and flood damage to homes and buildings in Union Star to be higher than in 53% of U.S. communities, mostly from inland flooding and tornadoes.

Inland flooding38%Tornadoes24%Drought13%Cold waves10%Everything else15%

By hazard

What Union Star faces

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

Inland flooding

38% of expected damage

Above average · higher than 57% of U.S. places

Recorded about once every 2 years in the area

Tornadoes

24% of expected damage

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

Recorded about once every 7 years in the area

Drought

13% of expected damage

Recorded about 22 times a year in the area

Cold waves

10% of expected damage

Well above average · higher than 78% of U.S. places

Recorded about 4 times a year in the area

Lower here

HailIce stormsWinter weatherHeat wavesWildfireEarthquakesLandslidesStrong windLightning

Not a risk here

Coastal floodingHurricanesAvalanchesTsunamisVolcanic 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 Star flood?

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

of homes in flood zones
are insured

of all homes
are insured

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

Insurance rates: DeKalb County.

Disasters that hit Union Star

1 federal disaster brought FEMA money here

Disasters the President declared that paid out in Union Star itself: aid to households, or repair grants to the Town of Union Star.

Brought FEMA money into Union StarDeclared for DeKalb County only

2007

Severe Winter Storms

$24K to the Town of Union Star for repairs

DeKalb County has had 18 natural disasters declared since 1953, most often severe storms and floods.

Around Union Star

Union Star and the towns around it

Very lowLowModerateHighVery high

Union Starmostly inland floodingModerate

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