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Natural hazards · St. Ansgar

St. Ansgar, IA natural hazards

Most of the natural-hazard damage FEMA expects in St. Ansgar comes from inland flooding, and overall the risk is very high 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 St. Ansgar?

82
Very high
vs. U.S. communities

FEMA expects yearly storm and flood damage to homes and buildings in St. Ansgar to be higher than in 82% of U.S. communities, mostly from inland flooding and strong winds.

Inland flooding41%Strong wind28%Drought15%Tornadoes8%Everything else7%
By hazard

What St. Ansgar faces

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

Inland flooding

41% of expected damage
Well above average · higher than 92% of U.S. places
Recorded about once a year in the area

Strong wind

28% of expected damage
Well above average · higher than 96% of U.S. places
Recorded about 4 times a year in the area

Drought

15% of expected damage
Recorded about 22 times a year in the area

Tornadoes

8% of expected damage
Well above average · higher than 98% of U.S. places
Recorded about once every 6 years in the area

Lower here

HailIce stormsWinter weatherCold wavesHeat 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 St. Ansgar flood?

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

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

3 federal disasters brought FEMA money here

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

Brought FEMA money into St. AnsgarDeclared for Mitchell County only
2013

Severe Storms, Tornadoes, and Flooding

$8K to the City of St. Ansgar for repairs
2008

Severe Storms, Tornadoes, and Flooding

53 households applied for aid $79K aid approved $27K to the City of St. Ansgar for repairs
2004

Severe Storms, Tornadoes, and Flooding

7 households applied for aid $3K aid approved
Mitchell County has had 17 natural disasters declared since 1953, most often severe storms and floods.
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. St. Ansgar 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 St. Ansgar’s own flood-insurance community; household aid to the registrant’s city; repair grants to the City of St. Ansgar. 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/18 · 2025-01-01
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