Natural hazards · Trempealeau

Trempealeau, WI natural hazards

Most of the natural-hazard damage FEMA expects in Trempealeau comes from inland flooding, and overall the risk is moderate for a U.S. community. Flood insurance has paid 23 claims here since 1993. 1 federal disaster brought FEMA money into town.

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

Expected damage

How exposed is Trempealeau?

Moderate

vs. U.S. communities

FEMA expects yearly storm and flood damage to homes and buildings in Trempealeau to be higher than in 56% of U.S. communities, mostly from inland flooding and cold waves.

Inland flooding55%Cold waves19%Tornadoes9%Hail5%Everything else12%

By hazard

What Trempealeau 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

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

Recorded about 3 times a year in the area

Cold waves

19% of expected damage

Below average · higher than 34% of U.S. places

Recorded about 8 times a year in the area

Tornadoes

9% of expected damage

Above average · higher than 72% of U.S. places

Recorded about once every 21 years in the area

Hail

5% of expected damage

Well above average · higher than 87% of U.S. places

Recorded about 4 times a year in the area

Lower here

Ice stormsWinter weatherHeat wavesWildfireEarthquakesLandslidesStrong windLightningDrought

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 Trempealeau flood?

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

23paid claims since 1993

$448Kpaid to owners

5homes flooded more than once

19932026

Biggest named events

Severe flooding: 4 claims, $73K
March 2019 Midwest Flooding: 1 claim, $52K

Homes that flooded again and again

■ FEMA “severe repetitive loss” (1) ■ flooded 2+ times

of homes in flood zones
are insured

of all homes
are insured

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

Insurance rates: Trempealeau County.

What’s been done with FEMA grants

15flood-prone properties bought out and cleared

Disasters that hit Trempealeau

1 federal disaster brought FEMA money here

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

Brought FEMA money into TrempealeauDeclared for Trempealeau County only

2001

Flooding, Severe Storms and Tornadoes

$5K to the Village of Trempealeau for repairs

Trempealeau County has had 13 natural disasters declared since 1953, most often severe storms and floods.

Around Trempealeau

Trempealeau and the towns around it

Very lowLowModerateHighVery high

Richmondmostly inland floodingHigh

Trempealeaumostly inland floodingModerate

Caledoniamostly 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. Trempealeau 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 Trempealeau’s own flood-insurance community; household aid to the registrant’s city; repair grants to the Village of Trempealeau. 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.