Natural hazards · Chaska

Chaska, MN natural hazards

Most of the natural-hazard damage FEMA expects in Chaska comes from inland flooding, and overall the risk is low for a U.S. community. Flood insurance has paid 7 claims here since 1978. 5 federal disasters brought FEMA money into town.

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

Expected damage

How exposed is Chaska?

Low

vs. U.S. communities

FEMA expects yearly storm and flood damage to homes and buildings in Chaska to be higher than in 24% of U.S. communities, mostly from inland flooding and tornadoes.

Inland flooding36%Tornadoes21%Strong wind15%Cold waves14%Hail6%Heat waves6%Everything else2%

By hazard

What Chaska faces

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

Inland flooding

36% of expected damage

Well below average · higher than 21% of U.S. places

Recorded about once a year in the area

Tornadoes

21% of expected damage

Well above average · higher than 83% of U.S. places

Strong wind

15% of expected damage

Well above average · higher than 98% of U.S. places

Recorded about 5 times a year in the area

Cold waves

14% of expected damage

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

Recorded about 10 times a year in the area

Hail

6% of expected damage

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

Recorded about 7 times a year in the area

Heat waves

6% of expected damage

Well above average · higher than 98% of U.S. places

Recorded about 6 times a year in the area

Lower here

Ice stormsWinter weatherWildfireEarthquakesLandslidesLightningDrought

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 Chaska flood?

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

7paid claims since 1978

$33Kpaid to owners

0homes flooded more than once

19782026

Biggest named events

Midwest Flooding: 2 claims, $7K
Not a named storm: 1 claim, $550

of homes in flood zones
are insured

of all homes
are insured

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

Insurance rates: Carver County.

Disasters that hit Chaska

5 federal disasters brought FEMA money here

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

Brought FEMA money into ChaskaDeclared for Carver County only

2024

Severe Storms and Flooding

$210K to the City of Chaska for repairs

2014

Severe Storms, Straight-Line Winds, Flooding, Landslides, and Mudslides

$314K to the City of Chaska for repairs

2011

Severe Storms and Flooding

$33K to the City of Chaska for repairs

2010

Flooding

$44K to the City of Chaska for repairs

2001

Severe Winter Storms, Flooding, and Tornadoes

$27K to the City of Chaska for repairs

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

Around Chaska

Chaska and the towns around it

Very lowLowModerateHighVery high

Carvermostly inland floodingLow

Dahlgrenmostly inland floodingLow

Jacksonmostly inland floodingLow

Chanhassenmostly inland floodingLow

Laketownmostly inland floodingLow

Chaskamostly inland floodingLow

Victoriamostly 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. Chaska covers 6 census tracts, combined by population.

Money that reached townFlood claims are matched to Chaska’s own flood-insurance community; household aid to the registrant’s city; repair grants to the City of Chaska. 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 Chaska total about $8.9M 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.