Natural hazards · Greenlawn

Greenlawn, NY natural hazards

Most of the natural-hazard damage FEMA expects in Greenlawn 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.

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

Expected damage

How exposed is Greenlawn?

Very low

vs. U.S. communities

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

Inland flooding57%Hurricanes15%Earthquakes8%Cold waves7%Everything else13%

By hazard

What Greenlawn faces

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

Inland flooding

57% of expected damage

Well below average · higher than 10% of U.S. places

Recorded about 4 times a year in the area

Hurricanes

15% of expected damage

Well above average · higher than 80% of U.S. places

Recorded about once every 5 years in the area

Earthquakes

8% of expected damage

Above average · higher than 57% of U.S. places

Cold waves

7% of expected damage

Well below average · higher than 19% of U.S. places

Recorded about once every 2 years in the area

Lower here

TornadoesHailIce stormsWinter weatherHeat 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 Greenlawn flood?

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

4paid claims since 1979

$17Kpaid to owners

0homes flooded more than once

19792026

of homes in flood zones
are insured

of all homes
are insured

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

Insurance rates: Suffolk County.

Disasters that hit Greenlawn

Federal disasters declared here

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

Brought FEMA money into GreenlawnDeclared for Suffolk County only

Suffolk County has had 28 natural disasters declared since 1953, most often hurricanes and severe storms.

Around Greenlawn

Greenlawn and the towns around it

Very lowLowModerateHighVery high

Centerportmostly inland floodingVery low

Huntington Stationmostly inland floodingVery low

Greenlawnmostly inland floodingVery low

Elwoodmostly inland floodingVery low

East Northportmostly 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. Greenlawn covers 4 census tracts, combined by population.

Money that reached townFlood claims are matched to Greenlawn’s own flood-insurance community (here, the census tracts inside it); household aid to the registrant’s city; repair grants to Greenlawn. 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 Greenlawn total about $1.8M 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.