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Natural hazards · Willistown

Willistown, PA natural hazards

Most of the natural-hazard damage FEMA expects in Willistown comes from inland flooding, and overall the risk is very low for a U.S. community. Flood insurance has paid 9 claims here since 1994.

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

How exposed is Willistown?

5
Very low
vs. U.S. communities

FEMA expects yearly storm and flood damage to homes and buildings in Willistown to be higher than in 5% of U.S. communities, mostly from inland flooding.

Inland flooding58%Heat waves8%Hurricanes7%Earthquakes7%Tornadoes7%Everything else14%
By hazard

What Willistown faces

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

Inland flooding

58% of expected damage
Well below average · higher than 12% of U.S. places
Recorded about 5 times a year in the area

Heat waves

8% of expected damage
Well below average · higher than 16% of U.S. places
Recorded about 11 times a year in the area

Hurricanes

7% of expected damage
Above average · higher than 67% of U.S. places
Recorded about once every 11 years in the area

Earthquakes

7% of expected damage
Above average · higher than 56% of U.S. places

Tornadoes

7% of expected damage
Below average · higher than 44% of U.S. places

Lower here

HailIce stormsWinter weatherCold wavesWildfireLandslidesStrong 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 Willistown flood?

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

9paid claims since 1994
$109Kpaid to owners
1homes flooded more than once
19942026

Homes that flooded again and again

■ FEMA “severe repetitive loss” (1) ■ flooded 2+ times

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

Federal disasters declared here

None of the disasters declared for Chester County shows FEMA aid or repair money reaching Willistown itself in FEMA’s records.

Brought FEMA money into WillistownDeclared for Chester County only
Chester County has had 22 natural disasters declared since 1953, most often hurricanes and floods.
Around Willistown

Willistown and the towns around it

Newtown: Very low, mostly inland floodingEast Goshen: Very low, mostly inland floodingMalvern: Very low, mostly inland floodingEdgmont: Very low, mostly inland floodingTredyffrin: Very low, mostly inland floodingEasttown: Very low, mostly inland floodingWesttown: Very low, mostly inland floodingRadnor: Very low, mostly inland floodingMarple: Very low, mostly inland floodingUpper Providence: Very low, mostly inland floodingWest Goshen: Very low, mostly inland floodingEast Whiteland: Very low, mostly inland floodingMiddletown: Very low, mostly inland floodingThornbury: Very low, mostly inland floodingUpper Merion: Low, mostly inland floodingSchuylkill: Low, mostly inland floodingBirmingham: Low, mostly inland floodingThornbury: Very low, mostly inland floodingWillistown: Very low, mostly inland flooding WillistownNewtownEast GoshenMalvernEdgmontTredyffrinEasttownWesttown
Very lowLowModerateHighVery high
Tredyffrinmostly inland floodingVery low
East Goshenmostly inland floodingVery low
Edgmontmostly inland floodingVery low
Westtownmostly inland floodingVery low
Willistownmostly inland floodingVery low
Easttownmostly inland floodingVery low
Newtownmostly inland floodingVery low
Malvernmostly 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. Willistown covers 3 census tracts, combined by population.
Money that reached townFlood claims are matched to Willistown’s own flood-insurance community; household aid to the registrant’s city; repair grants to the Township of Willistown. FEMA’s model follows property values, so a place that recently lost many homes can rate lower than it feels.

FEMA’s expected losses across Willistown total about $3.3M a year, counting buildings, people and crops.

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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