Natural hazards · Upper Brookville

Upper Brookville, NY natural hazards

Most of the natural-hazard damage FEMA expects in Upper Brookville comes from inland flooding, and overall the risk is very low for a U.S. community. 4 federal disasters brought FEMA money into town.

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

Expected damage

How exposed is Upper Brookville?

Very low

vs. U.S. communities

FEMA expects yearly storm and flood damage to homes and buildings in Upper Brookville to be higher than in 12% of U.S. communities, mostly from inland flooding.

Inland flooding69%Hurricanes12%Earthquakes11%Everything else9%

By hazard

What Upper Brookville faces

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

Inland flooding

69% of expected damage

Well below average · higher than 21% of U.S. places

Recorded about 3 times a year in the area

Hurricanes

12% of expected damage

Well above average · higher than 79% of U.S. places

Recorded about once every 6 years in the area

Earthquakes

11% of expected damage

Above average · higher than 68% of U.S. places

Lower here

TornadoesHailIce stormsWinter weatherCold wavesHeat 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 Upper Brookville flood?

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

of homes in flood zones
are insured

of all homes
are insured

No community discount. Upper 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 Upper Brookville

4 federal disasters brought FEMA money here

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

Brought FEMA money into Upper BrookvilleDeclared for Nassau County only

2021

Remnants of Hurricane Ida

$57K to the Village of Upper Brookville for repairs

2020

Tropical Storm Isaias

$19K to the Village of Upper Brookville for repairs

2012

Hurricane Sandy

2 households applied for aid $101K to the Village of Upper Brookville for repairs

2011

Hurricane Irene

$32K to the Village of Upper Brookville for repairs

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

Around Upper Brookville

Upper Brookville and the towns around it

Very lowLowModerateHighVery high

Matinecockmostly inland floodingVery low

Mill Neckmostly inland floodingVery low

Upper Brookvillemostly inland floodingVery low

Muttontownmostly inland floodingVery low

Old Brookvillemostly 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. Upper Brookville 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 Upper Brookville’s own flood-insurance community; household aid to the registrant’s city; repair grants to the Village of Upper Brookville. 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.