Natural hazards · Brookville

Brookville, NY natural hazards

Most of the natural-hazard damage FEMA expects in Brookville comes from inland flooding, and overall the risk is very low for a U.S. community. Flood insurance has paid 4 claims here since 1979. 5 federal disasters brought FEMA money into town.

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

Expected damage

How exposed is Brookville?

Very low

vs. U.S. communities

FEMA expects yearly storm and flood damage to homes and buildings in Brookville to be higher than in 2% of U.S. communities, mostly from inland flooding and earthquakes.

Inland flooding53%Earthquakes21%Hurricanes16%Everything else9%

By hazard

What Brookville 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 below average · higher than 3% of U.S. places

Recorded about 3 times a year in the area

Earthquakes

21% of expected damage

Above average · higher than 72% of U.S. places

Hurricanes

16% of expected damage

Well above average · higher than 77% of U.S. places

Recorded about once every 6 years in the area

Lower here

TornadoesHailIce stormsWinter weatherCold wavesHeat wavesWildfireLandslidesStrong windLightning

Not a risk here

Coastal floodingDroughtAvalanchesTsunamisVolcanic 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 Brookville flood?

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

4paid claims since 1979

$30Kpaid to owners

0homes flooded more than once

19792026

Biggest named events

Not a named storm: 1 claim, $20K

of homes in flood zones
are insured

of all homes
are insured

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

Insurance rates: Nassau County.

Disasters that hit Brookville

5 federal disasters brought FEMA money here

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

Brought FEMA money into BrookvilleDeclared for Nassau County only

2021

Remnants of Hurricane Ida

2 households applied for aid $3K aid approved

2020

Tropical Storm Isaias

$60K to the Village of Brookville for repairs

2012

Hurricane Sandy

$135K to the Village of Brookville for repairs

2011

Hurricane Irene

$28K to the Village of Brookville for repairs

2003

Snow

$9K to the Village of Brookville for repairs

Nassau County has had 24 natural disasters declared since 1953, most often hurricanes and severe storms.

Around Brookville

Brookville and the towns around it

Very lowLowModerateHighVery high

Muttontownmostly inland floodingVery low

Upper Brookvillemostly inland floodingVery low

Old Brookvillemostly inland floodingVery low

Old Westburymostly inland floodingVery low

East Hillsmostly inland floodingVery low

Brookvillemostly 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. Brookville covers 2 census tracts, combined by population.

Money that reached townFlood claims are matched to Brookville’s own flood-insurance community (here, the census tracts inside it); household aid to the registrant’s city; repair grants to the Village of Brookville. 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 Brookville total about $2.0M 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.