Natural hazards · Dunn

Dunn, WI natural hazards

Most of the natural-hazard damage FEMA expects in Dunn comes from inland flooding, and overall the risk is low for a U.S. community. Flood insurance has paid 4 claims here since 1978.

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

Expected damage

How exposed is Dunn?

Low

vs. U.S. communities

FEMA expects yearly storm and flood damage to homes and buildings in Dunn to be higher than in 38% of U.S. communities, mostly from inland flooding and cold waves.

Inland flooding55%Cold waves19%Tornadoes14%Hail6%Everything else7%

By hazard

What Dunn faces

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

Inland flooding

55% of expected damage

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

Recorded about 2 times a year in the area

Cold waves

19% of expected damage

Above average · higher than 55% of U.S. places

Recorded about 6 times a year in the area

Tornadoes

14% of expected damage

Well above average · higher than 75% of U.S. places

Recorded about once every 65 years in the area

Hail

6% 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 Dunn flood?

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

4paid claims since 1978

$48Kpaid to owners

0homes flooded more than once

19782026

Biggest named events

Storm: 1 claim, $5K

of homes in flood zones
are insured

of all homes
are insured

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

Insurance rates: Dane County.

Disasters that hit Dunn

Federal disasters declared here

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

Brought FEMA money into DunnDeclared for Dane County only

Dane County has had 17 natural disasters declared since 1953, most often severe storms and winter storms.

Around Dunn

Dunn and the towns around it

Very lowLowModerateHighVery high

Dunnmostly inland floodingLow

McFarlandmostly inland floodingLow

Stoughtonmostly inland floodingLow

Pleasant Springsmostly inland floodingLow

Rutlandmostly inland floodingVery low

Fitchburgmostly inland floodingVery low

Blooming Grovemostly cold wavesVery 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. Dunn covers 2 census tracts, combined by population.

Money that reached townFlood claims are matched to Dunn’s own flood-insurance community (here, the census tracts inside it); household aid to the registrant’s city; repair grants to the Town of Dunn. 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 Dunn total about $4.2M 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.