Natural hazards · East Troy

East Troy, WI natural hazards

Most of the natural-hazard damage FEMA expects in East Troy comes from inland flooding, and overall the risk is low for a U.S. community. 3 federal disasters brought FEMA money into town.

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

Expected damage

How exposed is East Troy?

Low

vs. U.S. communities

FEMA expects yearly storm and flood damage to homes and buildings in East Troy to be higher than in 20% of U.S. communities, mostly from inland flooding and tornadoes.

Inland flooding47%Tornadoes19%Cold waves16%Hail8%Everything else10%

By hazard

What East Troy faces

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

Inland flooding

47% of expected damage

Below average · higher than 28% of U.S. places

Recorded about once a year in the area

Tornadoes

19% of expected damage

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

Cold waves

16% of expected damage

Below average · higher than 31% of U.S. places

Recorded about 5 times a year in the area

Hail

8% of expected damage

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

Recorded about 4 times a year in the area

Lower here

HurricanesIce stormsWinter weatherHeat 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 East Troy flood?

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

of homes in flood zones
are insured

of all homes
are insured

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

Insurance rates: Walworth County.

Disasters that hit East Troy

3 federal disasters brought FEMA money here

Disasters the President declared that paid out in East Troy itself: aid to households, or repair grants to the Village of East Troy.

Brought FEMA money into East TroyDeclared for Walworth County only

2011

Severe Winter Storm and Snowstorm

$9K to the Village of East Troy for repairs

2008

Severe Storms, Tornadoes, and Flooding

19 households applied for aid $14K aid approved $313K to the Village of East Troy for repairs

2008

Record Snow and Near Record Snow

$7K to the Village of East Troy for repairs

Walworth County has had 11 natural disasters declared since 1953, most often winter storms and severe storms.

Around East Troy

East Troy and the towns around it

Very lowLowModerateHighVery high

East Troymostly inland floodingLow

Troymostly inland floodingLow

East Troymostly inland floodingLow

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. East Troy covers 1 census tract, combined by population.

Money that reached townFlood claims are matched to East Troy’s own flood-insurance community; household aid to the registrant’s city; repair grants to the Village of East Troy. 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 East Troy total about $1.1M 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.