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Natural hazards · Marietta

Marietta, WI natural hazards

Most of the natural-hazard damage FEMA expects in Marietta comes from inland flooding, and overall the risk is low for a U.S. community. 5 federal disasters brought FEMA money into town.

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

How exposed is Marietta?

33
Low
vs. U.S. communities

FEMA expects yearly storm and flood damage to homes and buildings in Marietta to be higher than in 33% of U.S. communities, mostly from inland flooding.

Inland flooding52%Tornadoes12%Cold waves12%Hail8%Heat waves8%Everything else9%
By hazard

What Marietta faces

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

Inland flooding

52% of expected damage
Below average · higher than 48% of U.S. places
Recorded about 3 times a year in the area

Tornadoes

12% of expected damage
Well above average · higher than 79% of U.S. places
Recorded about once every 9 years in the area

Cold waves

12% of expected damage
Below average · higher than 47% of U.S. places
Recorded about 6 times a year in the area

Hail

8% of expected damage
Well above average · higher than 90% of U.S. places
Recorded about 4 times a year in the area

Heat waves

8% of expected damage
Well above average · higher than 87% of U.S. places
Recorded about 4 times a year in the area

Lower here

HurricanesIce stormsWinter weatherWildfireEarthquakesLandslidesStrong windLightningDrought

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 Marietta flood?

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

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

5 federal disasters brought FEMA money here

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

Brought FEMA money into MariettaDeclared for Crawford County only
2017

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

$18K to the Town of Marietta for repairs
2013

Severe Storms, Flooding, and Mudslides

$69K to the Town of Marietta for repairs
2008

Severe Storms, Tornadoes, and Flooding

$2K to the Town of Marietta for repairs
2004

Severe Storms and Flooding

$6K to the Town of Marietta for repairs
2000

Severe Storms, Tornadoes, and Flooding

$30K to the Town of Marietta for repairs
Crawford County has had 20 natural disasters declared since 1953, most often severe storms and floods.
Around Marietta

Marietta and the towns around it

Eastman: Low, mostly inland floodingSteuben: Low, mostly inland floodingBoscobel: High, mostly inland floodingMarion: Very low, mostly inland floodingWauzeka: Moderate, mostly inland floodingWoodman: High, mostly inland floodingScott: Low, mostly inland floodingRichwood: High, mostly inland floodingPrairie du Chien: Moderate, mostly inland floodingSeneca: Low, mostly inland floodingHaney: Low, mostly inland floodingBoscobel: High, mostly inland floodingWatterstown: High, mostly inland floodingHickory Grove: Low, mostly inland floodingMount Ida: Very low, mostly inland floodingMillville: High, mostly inland floodingBridgeport: Moderate, mostly inland floodingMount Hope: High, mostly inland floodingClayton: Low, mostly inland floodingAkan: High, mostly inland floodingEagle: High, mostly inland floodingMarietta: Low, mostly inland flooding MariettaEastmanSteubenBoscobelMarionWauzekaWoodmanScottRichwood
Very lowLowModerateHighVery high
Richwoodmostly inland floodingHigh
Woodmanmostly inland floodingHigh
Boscobelmostly inland floodingHigh
Wauzekamostly inland floodingModerate
Mariettamostly inland floodingLow
Eastmanmostly inland floodingLow
Steubenmostly inland floodingLow
Scottmostly inland floodingLow
Marionmostly 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. Marietta 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 Marietta’s own flood-insurance community; household aid to the registrant’s city; repair grants to the Town of Marietta. 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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You’re in Marietta, WICrawford CountyView boundary

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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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