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Natural hazards · Walworth

Walworth, WI natural hazards

Most of the natural-hazard damage FEMA expects in Walworth comes from inland flooding, and overall the risk is very low for a U.S. community. 5 federal disasters brought FEMA money into town.

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

How exposed is Walworth?

5
Very low
vs. U.S. communities

FEMA expects yearly storm and flood damage to homes and buildings in Walworth to be higher than in 5% of U.S. communities, mostly from inland flooding and tornadoes.

Inland flooding33%Tornadoes22%Cold waves20%Hail11%Strong wind5%Everything else9%
By hazard

What Walworth faces

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

Inland flooding

33% of expected damage
Well below average · higher than 4% of U.S. places
Recorded about once a year in the area

Tornadoes

22% of expected damage
Above average · higher than 74% of U.S. places

Cold waves

20% of expected damage
Below average · higher than 31% of U.S. places
Recorded about 5 times a year in the area

Hail

11% of expected damage
Well above average · higher than 90% of U.S. places
Recorded about 5 times a year in the area

Strong wind

5% of expected damage
Well above average · higher than 80% of U.S. places
Recorded about 6 times a year in the area

Lower here

HurricanesIce stormsWinter weatherHeat wavesWildfireEarthquakesLandslidesLightningDrought

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 Walworth flood?

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

of homes in flood zones
are insured
of all homes
are insured
No community discount. Walworth 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 Walworth

5 federal disasters brought FEMA money here

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

Brought FEMA money into WalworthDeclared for Walworth County only
2011

Severe Winter Storm and Snowstorm

$11K to the Village of Walworth for repairs
2008

Severe Storms, Tornadoes, and Flooding

11 households applied for aid $10K aid approved $6K to the Village of Walworth for repairs
2008

Record Snow and Near Record Snow

$5K to the Village of Walworth for repairs
2000

Snow

$3K to the Village of Walworth for repairs
2000

Severe Storms, Tornadoes, and Flooding

$16K to the Village of Walworth for repairs
Walworth County has had 11 natural disasters declared since 1953, most often winter storms and severe storms.
Around Walworth

Walworth and the towns around it

Walworth: Low, mostly inland floodingFontana-on-Geneva Lake: Very low, mostly inland floodingWilliams Bay: Very low, mostly inland floodingLinn: Low, mostly inland floodingDelavan: Very low, mostly inland floodingSharon: Very low, mostly inland floodingChemung: Very low, mostly inland floodingWalworth: Very low, mostly inland flooding WalworthWalworthFontana-on-Geneva Lake
Very lowLowModerateHighVery high
Walworthmostly inland floodingLow
Fontana-on-Geneva Lakemostly inland floodingVery low
Walworthmostly 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. Walworth covers 1 census tract, combined by population.
Money that reached townFlood claims are matched to Walworth’s own flood-insurance community; household aid to the registrant’s city; repair grants to the Village of Walworth. 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 Walworth total about $927K 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.

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Boundary source: https://tigerweb.geo.census.gov/arcgis/rest/services/TIGERweb/Places_CouSub_ConCity_SubMCD/MapServer/18 · 2025-01-01
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