Natural hazards · Linn

Linn, WI natural hazards

Most of the natural-hazard damage FEMA expects in Linn comes from inland flooding, and overall the risk is low for a U.S. community. Flood insurance has paid 2 claims here since 1980. 3 federal disasters brought FEMA money into town.

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

Expected damage

How exposed is Linn?

Low

vs. U.S. communities

FEMA expects yearly storm and flood damage to homes and buildings in Linn to be higher than in 21% of U.S. communities, mostly from inland flooding and tornadoes.

Inland flooding48%Tornadoes17%Cold waves15%Hail10%Everything else10%

By hazard

What Linn faces

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

Inland flooding

48% of expected damage

Below average · higher than 29% of U.S. places

Recorded about once a year in the area

Tornadoes

17% of expected damage

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

Recorded about once every 30 years in the area

Cold waves

15% of expected damage

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

Recorded about 5 times a year in the area

Hail

10% of expected damage

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

Recorded about 5 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 Linn flood?

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

2paid claims since 1980

$776paid to owners

0homes flooded more than once

19802026

of homes in flood zones
are insured

of all homes
are insured

No community discount. Linn 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 Linn

3 federal disasters brought FEMA money here

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

Brought FEMA money into LinnDeclared for Walworth County only

2011

Severe Winter Storm and Snowstorm

$16K to the Town of Linn for repairs

2008

Record Snow and Near Record Snow

$6K to the Town of Linn for repairs

2000

Severe Storms, Tornadoes, and Flooding

$31K to the Town of Linn for repairs

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

Around Linn

Linn and the towns around it

Very lowLowModerateHighVery high

Bloomfieldmostly inland floodingLow

Walworthmostly inland floodingLow

Bloomfieldmostly inland floodingLow

Linnmostly inland floodingLow

Hebronmostly inland floodingVery low

Genevamostly inland floodingVery low

Fontana-on-Geneva Lakemostly inland floodingVery low

Aldenmostly inland floodingVery low

Williams Baymostly inland floodingVery low

Lake Genevamostly 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. Linn covers 2 census tracts, combined by population.

Money that reached townFlood claims are matched to Linn’s own flood-insurance community (here, the census tracts inside it); household aid to the registrant’s city; repair grants to the Town of Linn. 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 Linn total about $3.5M 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.