Natural hazards · Williamsburg

Williamsburg, IA natural hazards

Most of the natural-hazard damage FEMA expects in Williamsburg comes from inland flooding, and overall the risk is moderate for a U.S. community. Flood insurance has paid 3 claims here since 2009. 4 federal disasters brought FEMA money into town.

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

Expected damage

How exposed is Williamsburg?

Moderate

vs. U.S. communities

FEMA expects yearly storm and flood damage to homes and buildings in Williamsburg to be higher than in 43% of U.S. communities, mostly from inland flooding and tornadoes.

Inland flooding43%Tornadoes20%Strong wind16%Hail7%Everything else15%

By hazard

What Williamsburg faces

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

Inland flooding

43% of expected damage

Below average · higher than 40% of U.S. places

Recorded about 2 times a year in the area

Tornadoes

20% of expected damage

Well above average · higher than 97% of U.S. places

Recorded about once every 7 years in the area

Strong wind

16% of expected damage

Well above average · higher than 98% of U.S. places

Recorded about 6 times a year in the area

Hail

7% of expected damage

Well above average · higher than 88% of U.S. places

Recorded about 5 times a year in the area

Lower here

HurricanesIce stormsWinter weatherCold wavesHeat 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 Williamsburg flood?

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

3paid claims since 2009

$50Kpaid to owners

0homes flooded more than once

20092026

of homes in flood zones
are insured

of all homes
are insured

No community discount. Williamsburg isn’t in FEMA’s Community Rating System, which cuts flood insurance up to 45% in towns that do extra flood-proofing.

Insurance rates: Iowa County.

What’s been done with FEMA grants

1storm safe rooms built

Disasters that hit Williamsburg

4 federal disasters brought FEMA money here

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

Brought FEMA money into WilliamsburgDeclared for Iowa County only

2013

Severe Storms, Straight-Line Winds, and Flooding

$3K to the City of Williamsburg for repairs

2008

Severe Storms, Tornadoes, and Flooding

3 households applied for aid $163 aid approved $23K to the City of Williamsburg for repairs

2007

Severe Winter Storms

$32K to the City of Williamsburg for repairs

2004

Severe Storms, Tornadoes, and Flooding

2 households applied for aid $2K aid approved

Iowa County has had 20 natural disasters declared since 1953, most often floods and severe storms.

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. Williamsburg 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 Williamsburg’s own flood-insurance community; household aid to the registrant’s city; repair grants to the City of Williamsburg. 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.

Williamsburg, IA natural hazards

How exposed is Williamsburg?

What Williamsburg faces

Inland flooding

Tornadoes

Strong wind

Hail

Lower here

Not a risk here

Does Williamsburg flood?

What’s been done with FEMA grants

4 federal disasters brought FEMA money here

Severe Storms, Straight-Line Winds, and Flooding

Severe Storms, Tornadoes, and Flooding

Severe Winter Storms

Severe Storms, Tornadoes, and Flooding

How to read this page

Where to, neighbor?

Matches

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