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Natural hazards · Trondhjem

Trondhjem, MN natural hazards

Most of the natural-hazard damage FEMA expects in Trondhjem comes from inland flooding, and overall the risk is very low for a U.S. community. 3 federal disasters brought FEMA money into town.

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

How exposed is Trondhjem?

18
Very low
vs. U.S. communities

FEMA expects yearly storm and flood damage to homes and buildings in Trondhjem to be higher than in 18% of U.S. communities, mostly from inland flooding and cold waves.

Inland flooding54%Cold waves18%Tornadoes14%Everything else14%
By hazard

What Trondhjem faces

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

Inland flooding

54% of expected damage
Below average · higher than 28% of U.S. places
Recorded about once a year in the area

Cold waves

18% of expected damage
Above average · higher than 68% of U.S. places
Recorded about 15 times a year in the area

Tornadoes

14% of expected damage
Well above average · higher than 81% of U.S. places
Recorded about once every 9 years in the area

Lower here

HailIce stormsWinter weatherHeat wavesWildfireEarthquakesLandslidesStrong windLightning

Not a risk here

Coastal floodingHurricanesDroughtAvalanchesTsunamisVolcanic 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 Trondhjem flood?

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

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

3 federal disasters brought FEMA money here

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

Brought FEMA money into TrondhjemDeclared for Otter Tail County only
2011

Severe Storms and Flooding

$3K to the Township of Trondhjem for repairs
2009

Severe Storms and Flooding

$35K to the Township of Trondhjem for repairs
2001

Severe Winter Storms, Flooding, and Tornadoes

$5K to the Township of Trondhjem for repairs
Otter Tail County has had 15 natural disasters declared since 1953, most often floods and severe storms.
Around Trondhjem

Trondhjem and the towns around it

Rothsay: High, mostly inland floodingErhards Grove: Very low, mostly inland floodingNorwegian Grove: Low, mostly inland floodingOscar: Low, mostly inland floodingTanberg: High, mostly inland floodingPelican: Low, mostly inland floodingElizabeth: Low, mostly inland floodingMaplewood: Very low, mostly inland floodingPrairie View: High, mostly inland floodingTansem: Very high, mostly inland floodingCarlisle: Low, mostly inland floodingAkron: High, mostly inland floodingAndrea: High, mostly inland floodingManston: High, mostly inland floodingTrondhjem: Very low, mostly inland flooding TrondhjemRothsayErhards GroveNorwegian GroveOscarTanberg
Very lowLowModerateHighVery high
Rothsaymostly inland floodingHigh
Tanbergmostly inland floodingHigh
Norwegian Grovemostly inland floodingLow
Oscarmostly inland floodingLow
Trondhjemmostly inland floodingVery low
Erhards Grovemostly 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. Trondhjem 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 Trondhjem’s own flood-insurance community; household aid to the registrant’s city; repair grants to the Township of Trondhjem. 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.

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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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