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Natural hazards · Tiffin

Tiffin, IA natural hazards

Most of the natural-hazard damage FEMA expects in Tiffin comes from tornadoes, and overall the risk is high for a U.S. community. Flood insurance has paid 1 claim here since 2013. 4 federal disasters brought FEMA money into town.

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

How exposed is Tiffin?

70
High
vs. U.S. communities

FEMA expects yearly storm and flood damage to homes and buildings in Tiffin to be higher than in 70% of U.S. communities, mostly from tornadoes and inland flooding.

Tornadoes37%Inland flooding27%Cold waves12%Strong wind11%Everything else13%
By hazard

What Tiffin faces

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

Tornadoes

37% of expected damage
Well above average · among the top 1% of U.S. places
Recorded about once every 18 years in the area

Inland flooding

27% of expected damage
Below average · higher than 49% of U.S. places
Recorded about 2 times a year in the area

Cold waves

12% of expected damage
Above average · higher than 57% of U.S. places
Recorded about 7 times a year in the area

Strong wind

11% of expected damage
Well above average · among the top 1% of U.S. places
Recorded about 6 times a year in the area

Lower here

HurricanesHailIce stormsWinter weatherHeat wavesWildfireEarthquakesLandslidesLightningDrought

Not a risk here

Coastal floodingAvalanchesTsunamisVolcanic 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 Tiffin flood?

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

1paid claims since 2013
$13Kpaid to owners
0homes flooded more than once
20132026
of homes in flood zones
are insured
of all homes
are insured
No community discount. Tiffin isn’t in FEMA’s Community Rating System, which cuts flood insurance up to 45% in towns that do extra flood-proofing.
Insurance rates: Johnson County.
Disasters that hit Tiffin

4 federal disasters brought FEMA money here

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

Brought FEMA money into TiffinDeclared for Johnson County only
2020

Severe Storms

$48K to the City of Tiffin for repairs
2013

Severe Storms, Straight-Line Winds, and Flooding

$6K to the City of Tiffin for repairs
2008

Severe Storms, Tornadoes, and Flooding

3 households applied for aid $8K aid approved $33K to the City of Tiffin for repairs
2004

Severe Storms, Tornadoes, and Flooding

1 household applied for aid $3K aid approved
Johnson County has had 20 natural disasters declared since 1953, most often floods and severe storms.
Around Tiffin

Tiffin and the towns around it

Coralville: High, mostly tornadoesIowa City: High, mostly tornadoesNorth Liberty: High, mostly tornadoesTiffin: High, mostly tornadoes TiffinCoralville
Very lowLowModerateHighVery high
Coralvillemostly tornadoesHigh
Tiffinmostly tornadoesHigh
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. Tiffin 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 Tiffin’s own flood-insurance community; household aid to the registrant’s city; repair grants to the City of Tiffin. 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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