Natural hazards · Willowbrook

Willowbrook, CA natural hazards

Most of the natural-hazard damage FEMA expects in Willowbrook comes from inland flooding, and overall the risk is very high for a U.S. community. Flood insurance has paid 2 claims here since 2003.

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

Expected damage

How exposed is Willowbrook?

Very high

vs. U.S. communities

FEMA expects yearly storm and flood damage to homes and buildings in Willowbrook to be higher than in 97% of U.S. communities, mostly from inland flooding and earthquakes.

Inland flooding53%Earthquakes47%

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

53% of expected damage

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

Recorded about 4 times a year in the area

Earthquakes

47% of expected damage

Well above average · higher than 95% of U.S. places

Lower here

TornadoesHailHeat wavesLandslidesStrong windLightning

Not a risk here

Coastal floodingHurricanesIce stormsWinter weatherCold wavesWildfireDroughtAvalanchesTsunamisVolcanic 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?

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

2paid claims since 2003

$29Kpaid to owners

0homes flooded more than once

20032026

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: Los Angeles County.

Disasters that hit Willowbrook

Federal disasters declared here

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

Brought FEMA money into WillowbrookDeclared for Los Angeles County only

Los Angeles County has had 74 natural disasters declared since 1953, most often fires and floods.

Around Willowbrook

Willowbrook and the towns around it

Very lowLowModerateHighVery high

Willowbrookmostly inland floodingVery high

Los Angelesmostly earthquakesVery high

Comptonmostly earthquakesVery high

West Rancho Dominguezmostly earthquakesVery high

Lynwoodmostly earthquakesVery high

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 covers 6 census tracts, combined by population.

Money that reached townFlood claims are matched to Willowbrook’s own flood-insurance community (here, the census tracts inside it); 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.

FEMA’s expected losses across Willowbrook total about $10.7M 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.