Natural hazards · Roslyn

Roslyn, NY natural hazards

Most of the natural-hazard damage FEMA expects in Roslyn comes from inland flooding, and overall the risk is very low for a U.S. community. Flood insurance has paid 29 claims here since 1978. 3 federal disasters brought FEMA money into town.

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

Expected damage

How exposed is Roslyn?

Very low

vs. U.S. communities

FEMA expects yearly storm and flood damage to homes and buildings in Roslyn to be higher than in 14% of U.S. communities, mostly from inland flooding.

Inland flooding70%Hurricanes10%Earthquakes5%Everything else15%

By hazard

What Roslyn faces

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

Inland flooding

70% of expected damage

Below average · higher than 26% of U.S. places

Recorded about 3 times a year in the area

Hurricanes

10% 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

Above average · higher than 50% 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 flood?

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

29paid claims since 1978

$292Kpaid to owners

3homes flooded more than once

19782026

Biggest named events

Not a named storm: 7 claims, $21K
Hurricane Irene: 2 claims, $27K
Mid-spring storms: 1 claim, $6K

Homes that flooded again and again

■ FEMA “severe repetitive loss” (1) ■ flooded 2+ times

of homes in flood zones
are insured

of all homes
are insured

No community discount. Roslyn 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

3 federal disasters brought FEMA money here

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

Brought FEMA money into RoslynDeclared for Nassau County only

2021

Remnants of Hurricane Ida

154 households applied for aid $361K aid approved

2012

Hurricane Sandy

221 households applied for aid $85K aid approved

2011

Hurricane Irene

16 households applied for aid $29K aid approved

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

Around Roslyn

Roslyn and the towns around it

Very lowLowModerateHighVery high

Roslynmostly inland floodingVery low

Roslyn Estatesmostly inland floodingVery low

Roslyn Harbormostly inland floodingVery low

Flower Hillmostly inland floodingVery low

East Hillsmostly 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 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 Roslyn’s own flood-insurance community; household aid to the registrant’s city; repair grants to the Village of Roslyn. 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.