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Natural hazards · Iosco

Iosco, MN natural hazards

Most of the natural-hazard damage FEMA expects in Iosco comes from inland flooding, and overall the risk is moderate for a U.S. community. 4 federal disasters brought FEMA money into town.

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

How exposed is Iosco?

44
Moderate
vs. U.S. communities

FEMA expects yearly storm and flood damage to homes and buildings in Iosco to be higher than in 44% of U.S. communities, mostly from inland flooding and cold waves.

Inland flooding36%Cold waves21%Strong wind13%Tornadoes10%Drought10%Hail8%Everything else2%
By hazard

What Iosco 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
Above average · higher than 50% of U.S. places
Recorded about once every 2 years in the area

Cold waves

21% of expected damage
Above average · higher than 63% of U.S. places
Recorded about 10 times a year in the area

Strong wind

13% of expected damage
Well above average · higher than 98% of U.S. places
Recorded about 4 times a year in the area

Tornadoes

10% of expected damage
Well above average · higher than 90% of U.S. places
Recorded about once every 16 years in the area

Drought

10% of expected damage
Recorded about 13 times a year in the area

Hail

8% of expected damage
Well above average · higher than 87% of U.S. places
Recorded about 6 times a year in the area

Lower here

Ice stormsWinter weatherHeat wavesWildfireEarthquakesLandslidesLightning

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 Iosco flood?

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

of all homes
are insured
No community discount. Iosco isn’t in FEMA’s Community Rating System, which cuts flood insurance up to 45% in towns that do extra flood-proofing.
Insurance rates: Waseca County.
Disasters that hit Iosco

4 federal disasters brought FEMA money here

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

Brought FEMA money into IoscoDeclared for Waseca County only
2024

Severe Storms and Flooding

$53K to the Township of Iosco for repairs
2016

Severe Storms and Flooding

$13K to the Township of Iosco for repairs
2014

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

$21K to the Township of Iosco for repairs
2010

Severe Storms and Flooding

$9K to the Township of Iosco for repairs
Waseca County has had 12 natural disasters declared since 1953, most often floods and severe storms.
Around Iosco

Iosco and the towns around it

St. Mary: Moderate, mostly inland floodingJanesville: Moderate, mostly inland floodingWaterville: High, mostly inland floodingBlooming Grove: Moderate, mostly inland floodingWaseca: Low, mostly inland floodingAlton: Moderate, mostly inland floodingWilton: Moderate, mostly inland floodingWoodville: Moderate, mostly inland floodingJanesville: Moderate, mostly inland floodingLe Ray: Low, mostly cold wavesElysian: High, mostly inland floodingElysian: Low, mostly inland floodingKilkenny: Low, mostly inland floodingMorristown: Very high, mostly inland floodingDeerfield: Moderate, mostly inland floodingIosco: Moderate, mostly inland flooding IoscoSt. MaryJanesvilleWatervilleBlooming Grove
Very lowLowModerateHighVery high
Watervillemostly inland floodingHigh
St. Marymostly inland floodingModerate
Blooming Grovemostly inland floodingModerate
Ioscomostly inland floodingModerate
Janesvillemostly 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. Iosco covers 1 census tract, combined by population.
Money that reached townFlood claims are matched to Iosco’s own flood-insurance community; household aid to the registrant’s city; repair grants to the Township of Iosco. 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 Iosco total about $1.6M 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/15 · 2025-01-01
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