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Natural hazards · North Hempstead

North Hempstead, NY natural hazards

Most of the natural-hazard damage FEMA expects in North Hempstead comes from inland flooding, and overall the risk is very low for a U.S. community. Flood insurance has paid 189 claims here since 1978. 7 federal disasters brought FEMA money into town.

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

How exposed is North Hempstead?

9
Very low
vs. U.S. communities

FEMA expects yearly storm and flood damage to homes and buildings in North Hempstead to be higher than in 9% of U.S. communities, mostly from inland flooding.

Inland flooding61%Earthquakes12%Hurricanes11%Everything else17%
By hazard

What North Hempstead faces

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

Inland flooding

61% of expected damage
Well below average · higher than 16% of U.S. places
Recorded about 3 times a year in the area

Earthquakes

12% of expected damage
Above average · higher than 68% of U.S. places

Hurricanes

11% of expected damage
Well above average · higher than 77% of U.S. places
Recorded about once every 6 years in the area

Lower here

Coastal floodingTornadoesHailIce stormsWinter weatherCold wavesHeat wavesWildfireLandslidesStrong windLightningDrought

Not a risk here

AvalanchesTsunamisVolcanic 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 North Hempstead flood?

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

189paid claims since 1978
$2.8Mpaid to owners
24homes flooded more than once
19782026

Biggest named events

  • Not a named storm: 16 claims, $37K
  • Hurricane Ida: 16 claims, $335K
  • Hurricane Irene: 10 claims, $93K

Homes that flooded again and again

■ FEMA “severe repetitive loss” (2) ■ flooded 2+ times

of homes in flood zones
are insured
of all homes
are insured
No community discount. North Hempstead 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 North Hempstead

7 federal disasters brought FEMA money here

Disasters the President declared that paid out in North Hempstead itself: aid to households, or repair grants to the Town of North Hempstead.

Brought FEMA money into North HempsteadDeclared for Nassau County only
2021

Remnants of Hurricane Ida

$347K to the Town of North Hempstead for repairs
2020

Tropical Storm Isaias

$373K to the Town of North Hempstead for repairs
2012

Hurricane Sandy

$62.1M to the Town of North Hempstead for repairs
2011

Hurricane Irene

$1.5M to the Town of North Hempstead for repairs
2010

Severe Winter Storm and Snowstorm

$398K to the Town of North Hempstead for repairs
2010

Severe Storms and Flooding

$65K to the Town of North Hempstead for repairs
2003

Snow

$147K to the Town of North Hempstead for repairs
Nassau County has had 24 natural disasters declared since 1953, most often hurricanes and severe storms.
Around North Hempstead

North Hempstead and the towns around it

Oyster Bay: Very low, mostly inland floodingHempstead: Low, mostly inland floodingNew York: Very low, mostly inland floodingGarden City: Very low, mostly inland floodingWestbury: Very low, mostly inland floodingGreat Neck Estates: Low, mostly inland floodingRoslyn Harbor: Very low, mostly inland floodingLake Success: Very low, mostly inland floodingSea Cliff: Very low, mostly inland floodingGlen Cove: Very low, mostly inland floodingEast Hills: Very low, mostly inland floodingOld Westbury: Very low, mostly inland floodingHuntington: Very low, mostly inland floodingLloyd Harbor: Very low, mostly inland floodingBabylon: Low, mostly inland floodingAmityville: High, mostly inland floodingLattingtown: Very low, mostly inland floodingLaurel Hollow: Very low, mostly inland floodingMatinecock: Very low, mostly inland floodingLawrence: Low, mostly inland floodingValley Stream: Low, mostly inland floodingAtlantic Beach: Low, mostly inland floodingYonkers: Low, mostly inland floodingMount Vernon: Low, mostly inland floodingLinden: Low, mostly inland floodingPelham Manor: Moderate, mostly inland floodingPelham: Moderate, mostly inland floodingBayonne: Moderate, mostly inland floodingElizabeth: Low, mostly inland floodingHempstead: Low, mostly inland floodingNew Hyde Park: Very low, mostly inland floodingStewart Manor: Very low, mostly inland floodingMineola: Very low, mostly inland floodingGreat Neck Plaza: Very low, mostly inland floodingKensington: Very low, mostly inland floodingGreat Neck: Very low, mostly inland floodingRoslyn: Very low, mostly inland floodingOld Brookville: Very low, mostly inland floodingNorth Hills: Very low, mostly inland floodingBrookville: Very low, mostly inland floodingNorth Hempstead: Very low, mostly inland flooding North HempsteadOyster BayHempsteadNew YorkGarden CityWestburyGreat Neck EstatesRoslyn HarborLake SuccessSea CliffGlen CoveEast HillsOld Westbury
Very lowLowModerateHighVery high
Hempsteadmostly inland floodingLow
Great Neck Estatesmostly inland floodingLow
New Yorkmostly inland floodingVery low
Oyster Baymostly inland floodingVery low
Garden Citymostly inland floodingVery low
Roslyn Harbormostly inland floodingVery low
Glen Covemostly inland floodingVery low
Old Westburymostly inland floodingVery low
North Hempsteadmostly inland floodingVery low
Lake Successmostly inland floodingVery low
East Hillsmostly inland floodingVery low
Westburymostly inland floodingVery low
Sea Cliffmostly 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. North Hempstead covers 51 census tracts, combined by population.
Money that reached townFlood claims are matched to North Hempstead’s own flood-insurance community; household aid to the registrant’s city; repair grants to the Town of North Hempstead. 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 North Hempstead total about $44.3M 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.

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Boundary source: https://tigerweb.geo.census.gov/arcgis/rest/services/TIGERweb/Places_CouSub_ConCity_SubMCD/MapServer/15 · 2025-01-01
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