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Natural hazards · Randolph

Randolph, NJ natural hazards

Most of the natural-hazard damage FEMA expects in Randolph comes from inland flooding, and overall the risk is low for a U.S. community. Flood insurance has paid 22 claims here since 1978. 13 federal disasters brought FEMA money into town.

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

How exposed is Randolph?

26
Low
vs. U.S. communities

FEMA expects yearly storm and flood damage to homes and buildings in Randolph to be higher than in 26% of U.S. communities, mostly from inland flooding.

Inland flooding69%Cold waves9%Everything else21%
By hazard

What Randolph 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
Above average · higher than 50% of U.S. places
Recorded about 4 times a year in the area

Cold waves

9% of expected damage
Below average · higher than 29% of U.S. places
Recorded about once a year in the area

Lower here

HurricanesTornadoesHailIce stormsWinter weatherHeat 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 Randolph flood?

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

22paid claims since 1978
$717Kpaid to owners
2homes flooded more than once
19782026

Biggest named events

  • Hurricane Irene: 8 claims, $98K
  • March 2010 Nor'easter: 2 claims, $28K
  • Late winter storms: 1 claim, $473

Homes that flooded again and again

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

of all homes
are insured
No community discount. Randolph isn’t in FEMA’s Community Rating System, which cuts flood insurance up to 45% in towns that do extra flood-proofing.
Insurance rates: Morris County.
Disasters that hit Randolph

13 federal disasters brought FEMA money here

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

Brought FEMA money into RandolphDeclared for Morris County only
2021

Remnants of Hurricane Ida

60 households applied for aid $45K aid approved
2021

Severe Winter Storm and Snowstorm

$172K to the Township of Randolph for repairs
2020

Tropical Storm Isaias

$316K to the Township of Randolph for repairs
2018

Severe Winter Storm and Snowstorm

$231K to the Township of Randolph for repairs
2016

Severe Winter Storm and Snowstorm

$99K to the Township of Randolph for repairs
2012

Hurricane Sandy

254 households applied for aid $7K aid approved $407K to the Township of Randolph for repairs
2011

Severe Storm

$263K to the Township of Randolph for repairs
2011

Hurricane Irene

168 households applied for aid $366K aid approved $110K to the Township of Randolph for repairs
2010

Severe Winter Storm and Snowstorm

$69K to the Township of Randolph for repairs
2010

Severe Storms and Flooding

2 households applied for aid $10K aid approved $10K to the Township of Randolph for repairs
2007

Severe Storms and Inland and Coastal Flooding

4 households applied for aid $579 aid approved
2005

Severe Storms and Flooding

6 households applied for aid $13K aid approved
1999

Hurricane Floyd Major Disaster Declarations

$15K to the Township of Randolph for repairs
Morris County has had 26 natural disasters declared since 1953, most often severe storms and hurricanes.
Around Randolph

Randolph and the towns around it

Chester: Moderate, mostly inland floodingRoxbury: Low, mostly inland floodingMine Hill: Low, mostly inland floodingVictory Gardens: Very low, mostly inland floodingRockaway: Low, mostly inland floodingMendham: Moderate, mostly inland floodingDover: Very high, mostly inland floodingWashington: Low, mostly inland floodingMount Olive: Low, mostly inland floodingBedminster: Moderate, mostly inland floodingTewksbury: Moderate, mostly inland floodingMount Arlington: Very low, mostly inland floodingHopatcong: Low, mostly cold wavesByram: Moderate, mostly inland floodingJefferson: Low, mostly inland floodingStanhope: Low, mostly cold wavesNetcong: Very low, mostly inland floodingWharton: Low, mostly inland floodingDenville: High, mostly inland floodingWest Milford: High, mostly inland floodingRockaway: High, mostly inland floodingBoonton: Very high, mostly inland floodingKinnelon: Moderate, mostly inland floodingMendham: Low, mostly inland floodingBernardsville: Low, mostly inland floodingRandolph: Low, mostly inland flooding RandolphChesterRoxburyMine HillVictory GardensRockawayMendhamDover
Very lowLowModerateHighVery high
Dovermostly inland floodingVery high
Mendhammostly inland floodingModerate
Chestermostly inland floodingModerate
Rockawaymostly inland floodingLow
Randolphmostly inland floodingLow
Roxburymostly inland floodingLow
Mine Hillmostly inland floodingLow
Victory Gardensmostly 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. Randolph covers 5 census tracts, combined by population.
Money that reached townFlood claims are matched to Randolph’s own flood-insurance community; household aid to the registrant’s city; repair grants to the Township of Randolph. 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 Randolph total about $8.9M 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.

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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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