Natural hazards · Willowbrook

Willowbrook, IL natural hazards

Most of the natural-hazard damage FEMA expects in Willowbrook comes from inland flooding, and overall the risk is high for a U.S. community.

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

Expected damage

How exposed is Willowbrook?

High

vs. U.S. communities

FEMA expects yearly storm and flood damage to homes and buildings in Willowbrook to be higher than in 75% of U.S. communities, mostly from inland flooding.

Inland flooding71%Cold waves13%Tornadoes13%Everything else3%

By hazard

What Willowbrook faces

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

Inland flooding

71% of expected damage

Well above average · higher than 90% of U.S. places

Recorded about 3 times a year in the area

Cold waves

13% of expected damage

Well below average · higher than 18% of U.S. places

Recorded about 4 times a year in the area

Tornadoes

13% of expected damage

Well above average · higher than 85% of U.S. places

Lower here

HurricanesHailIce stormsWinter weatherHeat wavesWildfireEarthquakesLandslidesStrong 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 Willowbrook flood?

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

of homes in flood zones
are insured

of all homes
are insured

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

Insurance rates: Will County.

Disasters that hit Willowbrook

Federal disasters declared here

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

Brought FEMA money into WillowbrookDeclared for Will County only

Will County has had 17 natural disasters declared since 1953, most often severe storms and floods.

Around Willowbrook

Willowbrook and the towns around it

Very lowLowModerateHighVery high

Willowbrookmostly inland floodingHigh

Plum Valleymostly inland floodingHigh

Cretemostly inland floodingModerate

St. Johnmostly inland floodingModerate

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