TownTapestry
Sign inJoin
Roslyn HarborGood evening
Natural hazards · Roslyn Harbor

Roslyn Harbor, NY natural hazards

Most of the natural-hazard damage FEMA expects in Roslyn Harbor comes from inland flooding, and overall the risk is very low for a U.S. community. Flood insurance has paid 17 claims here since 1978. 5 federal disasters brought FEMA money into town.

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

How exposed is Roslyn Harbor?

12
Very low
vs. U.S. communities

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

Inland flooding69%Hurricanes11%Earthquakes5%Everything else16%
By hazard

What Roslyn Harbor 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 24% of U.S. places
Recorded about 3 times a year in the area

Hurricanes

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

Earthquakes

5% of expected damage
Below average · higher than 49% of U.S. places

Lower here

Coastal floodingTornadoesHailIce stormsWinter weatherCold wavesHeat wavesWildfireLandslidesStrong windLightning

Not a risk here

DroughtAvalanchesTsunamisVolcanic 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 Roslyn Harbor flood?

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

17paid claims since 1978
$492Kpaid to owners
1homes flooded more than once
19782026

Biggest named events

  • Not a named storm: 3 claims, $8K
  • December Storm - Nor'easter: 2 claims, $31K
  • Hurricane Sandy: 2 claims, $395K

Homes that flooded again and again

■ FEMA “severe repetitive loss” (0) ■ flooded 2+ times

of homes in flood zones
are insured
of all homes
are insured
No community discount. Roslyn Harbor 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 Roslyn Harbor

5 federal disasters brought FEMA money here

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

Brought FEMA money into Roslyn HarborDeclared for Nassau County only
2021

Remnants of Hurricane Ida

2 households applied for aid $1K aid approved $118K to the Village of Roslyn Harbor for repairs
2020

Tropical Storm Isaias

$71K to the Village of Roslyn Harbor for repairs
2012

Hurricane Sandy

$97K to the Village of Roslyn Harbor for repairs
2011

Hurricane Irene

$8K to the Village of Roslyn Harbor for repairs
2003

Snow

$7K to the Village of Roslyn Harbor for repairs
Nassau County has had 24 natural disasters declared since 1953, most often hurricanes and severe storms.
Around Roslyn Harbor

Roslyn Harbor and the towns around it

Roslyn: Very low, mostly inland floodingNorth Hempstead: Very low, mostly inland floodingOyster Bay: Very low, mostly inland floodingOld Brookville: Very low, mostly inland floodingFlower Hill: Very low, mostly inland floodingEast Hills: Very low, mostly inland floodingRoslyn Estates: 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 floodingLake Success: Very low, mostly inland floodingSea Cliff: Very low, mostly inland floodingGlen Cove: 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 floodingUpper Brookville: Very low, mostly inland floodingBrookville: Very low, mostly inland floodingRoslyn Harbor: Very low, mostly inland flooding Roslyn HarborRoslynNorth HempsteadOyster BayOld Brookville
Very lowLowModerateHighVery high
Oyster Baymostly inland floodingVery low
Roslynmostly inland floodingVery low
Roslyn Harbormostly inland floodingVery low
Old Brookvillemostly inland floodingVery low
North Hempsteadmostly 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. Roslyn Harbor covers 2 census tracts, combined by population.
Money that reached townFlood claims are matched to Roslyn Harbor’s own flood-insurance community; household aid to the registrant’s city; repair grants to the Village of Roslyn Harbor. 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 Roslyn Harbor total about $1.9M 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.

The porch light’s on

Where to, neighbor?

You’re in Roslyn Harbor, NYView boundary

Nearby

All towns & citiesExplore the map

Local begins with a boundary.

See what belongs to your selected town.

Loading boundary…

Roslyn Harbor is your selected town. The feed includes posts assigned to this town, not a distance radius or ZIP code.

Neighborhoods narrow the feed further, while townwide announcements, events, and issues remain visible.

Boundary source: https://tigerweb.geo.census.gov/arcgis/rest/services/TIGERweb/Places_CouSub_ConCity_SubMCD/MapServer/18 · 2025-01-01
Open detailed map