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Natural hazards · Manville

Manville, NJ natural hazards

Most of the natural-hazard damage FEMA expects in Manville comes from inland flooding, and overall the risk is high for a U.S. community. Flood insurance has paid 1,676 claims here since 1978. 8 federal disasters brought FEMA money into town.

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

How exposed is Manville?

77
High
vs. U.S. communities

FEMA expects yearly storm and flood damage to homes and buildings in Manville to be higher than in 77% of U.S. communities, mostly from inland flooding.

Inland flooding83%Everything else17%
By hazard

What Manville faces

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

Inland flooding

83% of expected damage
Well above average · higher than 91% of U.S. places
Recorded about 6 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 Manville flood?

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

1,676paid claims since 1978
$72.4Mpaid to owners
290homes flooded more than once
19782026

Biggest named events

  • Hurricane Irene: 452 claims, $24.6M
  • April 2007 Nor'easter: 296 claims, $9.1M
  • Hurricane Floyd: 278 claims, $11.0M

Homes that flooded again and again

Each house = 5 homes. ■ FEMA “severe repetitive loss” (129) ■ flooded 2+ times

of homes in flood zones
are insured
of all homes
are insured
🏷️ 25% off flood insurance. Manville is in FEMA’s Community Rating System (class 5) for its flood-proofing work.
Insurance rates: Somerset County.

What’s been done with FEMA grants

305flood-prone properties bought out and cleared
43homes raised above flood level
Disasters that hit Manville

8 federal disasters brought FEMA money here

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

Brought FEMA money into ManvilleDeclared for Somerset County only
2021

Remnants of Hurricane Ida

1,329 households applied for aid $8.9M aid approved $1.4M to the Borough of Manville for repairs
2016

Severe Winter Storm and Snowstorm

$52K to the Borough of Manville for repairs
2012

Hurricane Sandy

230 households applied for aid $3K aid approved $188K to the Borough of Manville for repairs
2011

Hurricane Irene

1,022 households applied for aid $4.7M aid approved $344K to the Borough of Manville for repairs
2010

Severe Winter Storm and Snowstorm

$22K to the Borough of Manville for repairs
2010

Severe Storms and Flooding

63 households applied for aid $95K aid approved $164K to the Borough of Manville for repairs
2007

Severe Storms and Inland and Coastal Flooding

321 households applied for aid $533K aid approved $188K to the Borough of Manville for repairs
1999

Hurricane Floyd Major Disaster Declarations

$935K to the Borough of Manville for repairs
Somerset County has had 23 natural disasters declared since 1953, most often severe storms and hurricanes.
Around Manville

Manville and the towns around it

Bridgewater: Moderate, mostly inland floodingHillsborough: Moderate, mostly inland floodingFranklin: Moderate, mostly inland floodingBedminster: Moderate, mostly inland floodingBranchburg: Moderate, mostly inland floodingBound Brook: Very high, mostly inland floodingSomerville: High, mostly inland floodingMiddlesex: Very high, mostly inland floodingWarren: Moderate, mostly inland floodingRaritan: High, mostly inland floodingBernards: Moderate, mostly inland floodingGreen Brook: High, mostly inland floodingReadington: Moderate, mostly inland floodingMontgomery: High, mostly inland floodingMillstone: Moderate, mostly inland floodingEast Amwell: Moderate, mostly inland floodingRaritan: Low, mostly inland floodingNew Brunswick: High, mostly inland floodingSouth Brunswick: Low, mostly inland floodingPiscataway: High, mostly inland floodingRocky Hill: High, mostly inland floodingPrinceton: Moderate, mostly inland floodingNorth Brunswick: Moderate, mostly inland floodingSouth Bound Brook: Very high, mostly inland floodingManville: High, mostly inland flooding ManvilleBridgewaterHillsboroughFranklin
Very lowLowModerateHighVery high
Manvillemostly inland floodingHigh
Bridgewatermostly inland floodingModerate
Franklinmostly inland floodingModerate
Hillsboroughmostly 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. Manville covers 3 census tracts, combined by population.
Money that reached townFlood claims are matched to Manville’s own flood-insurance community; household aid to the registrant’s city; repair grants to the Borough of Manville. 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 Manville total about $5.4M 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/18 · 2025-01-01
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