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Natural hazards · Long Hill

Long Hill, NJ natural hazards

Most of the natural-hazard damage FEMA expects in Long Hill comes from inland flooding, and overall the risk is high for a U.S. community. Flood insurance has paid 150 claims here since 1978. 11 federal disasters brought FEMA money into town.

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

How exposed is Long Hill?

76
High
vs. U.S. communities

FEMA expects yearly storm and flood damage to homes and buildings in Long Hill to be higher than in 76% of U.S. communities, mostly from inland flooding.

Inland flooding84%Everything else17%
By hazard

What Long Hill faces

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

Inland flooding

84% of expected damage
Well above average · higher than 92% of U.S. places
Recorded about 4 times a year in the area

Lower here

HurricanesTornadoesHailIce stormsWinter weatherCold wavesHeat wavesWildfireEarthquakesLandslidesStrong windLightningDrought

Not a risk here

Coastal floodingAvalanchesTsunamisVolcanic 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 Long Hill flood?

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

150paid claims since 1978
$3.6Mpaid to owners
25homes flooded more than once
19782026

Biggest named events

  • Hurricane Irene: 38 claims, $1.3M
  • March 2010 Nor'easter: 24 claims, $804K
  • Hurricane Ida: 23 claims, $821K

Homes that flooded again and again

■ FEMA “severe repetitive loss” (9) ■ flooded 2+ times

of all homes
are insured
🏷️ 15% off flood insurance. Long Hill is in FEMA’s Community Rating System (class 7) for its flood-proofing work.
Insurance rates: Morris County.
Disasters that hit Long Hill

11 federal disasters brought FEMA money here

Disasters the President declared that paid out in Long Hill itself: aid to households, or repair grants to the Township of Long Hill.

Brought FEMA money into Long HillDeclared for Morris County only
2021

Remnants of Hurricane Ida

$302K to the Township of Long Hill for repairs
2021

Severe Winter Storm and Snowstorm

$84K to the Township of Long Hill for repairs
2020

Tropical Storm Isaias

$123K to the Township of Long Hill for repairs
2018

Severe Winter Storm and Snowstorm

$241K to the Township of Long Hill for repairs
2016

Severe Winter Storm and Snowstorm

$47K to the Township of Long Hill for repairs
2012

Hurricane Sandy

$594K to the Township of Long Hill for repairs
2011

Severe Storm

$134K to the Township of Long Hill for repairs
2011

Hurricane Irene

$73K to the Township of Long Hill for repairs
2010

Severe Winter Storm and Snowstorm

$32K to the Township of Long Hill for repairs
2010

Severe Storms and Flooding

$14K to the Township of Long Hill for repairs
1999

Hurricane Floyd Major Disaster Declarations

$42K to the Township of Long Hill for repairs
Morris County has had 26 natural disasters declared since 1953, most often severe storms and hurricanes.
Around Long Hill

Long Hill and the towns around it

Bernards: Moderate, mostly inland floodingWarren: Moderate, mostly inland floodingBerkeley Heights: Moderate, mostly inland floodingHarding: Moderate, mostly inland floodingChatham: High, mostly inland floodingBernardsville: Low, mostly inland floodingFar Hills: High, mostly inland floodingBridgewater: Moderate, mostly inland floodingBedminster: Moderate, mostly inland floodingWatchung: High, mostly inland floodingGreen Brook: High, mostly inland floodingScotch Plains: High, mostly inland floodingMountainside: Low, mostly inland floodingNew Providence: High, mostly inland floodingSummit: Moderate, mostly inland floodingMorris: Low, mostly inland floodingMadison: Low, mostly inland floodingChatham: High, mostly inland floodingLong Hill: High, mostly inland flooding Long HillBernardsWarrenBerkeley HeightsHardingChatham
Very lowLowModerateHighVery high
Long Hillmostly inland floodingHigh
Chathammostly inland floodingHigh
Berkeley Heightsmostly inland floodingModerate
Hardingmostly inland floodingModerate
Bernardsmostly inland floodingModerate
Warrenmostly inland floodingModerate
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. Long Hill covers 2 census tracts, combined by population.
Money that reached townFlood claims are matched to Long Hill’s own flood-insurance community; household aid to the registrant’s city; repair grants to the Township of Long Hill. 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 Long Hill total about $5.5M 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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