Natural hazards · Hewlett Harbor

Hewlett Harbor, NY natural hazards

Most of the natural-hazard damage FEMA expects in Hewlett Harbor comes from inland flooding, and overall the risk is low for a U.S. community. Flood insurance has paid 189 claims here since 1979. 4 federal disasters brought FEMA money into town.

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

Expected damage

How exposed is Hewlett Harbor?

Low

vs. U.S. communities

FEMA expects yearly storm and flood damage to homes and buildings in Hewlett Harbor to be higher than in 31% of U.S. communities, mostly from inland flooding.

Inland flooding69%Coastal flooding9%Earthquakes8%Hurricanes8%Everything else7%

By hazard

What Hewlett 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

Below average · higher than 42% of U.S. places

Recorded about 3 times a year in the area

Coastal flooding

9% of expected damage

Well above average · higher than 97% of U.S. places

Earthquakes

8% of expected damage

Above average · higher than 69% of U.S. places

Hurricanes

8% of expected damage

Well above average · higher than 77% of U.S. places

Recorded about once every 6 years in the area

Lower here

TornadoesHailIce 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 Hewlett Harbor flood?

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

189paid claims since 1979

$18.2Mpaid to owners

24homes flooded more than once

19792026

Biggest named events

Hurricane Sandy: 124 claims, $17.3M
Torrential rain: 12 claims, $76K
Hurricane Irene: 11 claims, $425K

Homes that flooded again and again

■ FEMA “severe repetitive loss” (3) ■ flooded 2+ times

of homes in flood zones
are insured

of all homes
are insured

No community discount. Hewlett 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 Hewlett Harbor

4 federal disasters brought FEMA money here

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

Brought FEMA money into Hewlett HarborDeclared for Nassau County only

2012

Hurricane Sandy

4 households applied for aid $28K aid approved $62K to the Village of Hewlett Harbor for repairs

2011

Hurricane Irene

$13K to the Village of Hewlett Harbor for repairs

2010

Severe Winter Storm and Snowstorm

$14K to the Village of Hewlett Harbor for repairs

2010

Severe Storms and Flooding

$12K to the Village of Hewlett Harbor for repairs

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

Around Hewlett Harbor

Hewlett Harbor and the towns around it

Very lowLowModerateHighVery high

Bay Parkmostly inland floodingHigh

East Rockawaymostly inland floodingModerate

Hewlett Harbormostly inland floodingLow

Hewlett Bay Parkmostly inland floodingLow

Hewlett Neckmostly inland floodingLow

Hewlettmostly 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. Hewlett Harbor 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 Hewlett Harbor’s own flood-insurance community; household aid to the registrant’s city; repair grants to the Village of Hewlett Harbor. 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.