Photo: Lalmeister · CC BY-SA 3.0Less hazard damage per building is expected in Randolph Township than in 74% of U.S. towns, mostly from river and rain flooding
On FEMA’s National Risk Index, Randolph Township gets a B+ for hazard risk: lower expected damage per building than 74% of U.S. towns, #82 of 468 in New Jersey. Most of that expected damage is river and rain flooding (87%). Flood insurance has paid 22 claims here since 1978.
Graded on FEMA’s expected yearly building damage per dollar of building value (NRI v1.20, December 2025), weighted by where residents live; flood claims are shown, not graded. How hazard risk is graded
What stands out about Randolph Township’s natural hazards
From FEMA’s model and FEMA’s records, below.
What Randolph Township faces
Each hazard’s share of the building damage FEMA expects here, and how its rate compares with the rest of the country.
River and rain flooding
Hurricanes
Shares are of FEMA’s expected building damage, the measure the grade uses; ranks compare each hazard’s building-damage rate with all 85,154 U.S. census tracts. In FEMA’s terms, river and rain flooding is FEMA’s “Inland Flooding” (rivers and streams overflowing their banks, or rain overwhelming drainage). FEMA defines coastal flooding as high or rising tides and storm surge, so surge damage is counted there. Drought isn’t listed: FEMA counts its losses in crops only.
What’s behind Randolph Township’s grade
River and rain flooding is 87% of the building damage FEMA expects in Randolph Township, and Randolph Township’s rate of river and rain flooding damage is higher than 52% of U.S. census tracts. Next is hurricanes at 5% (higher than 67% of U.S. census tracts).
B+ #82 of 468 in New Jersey; lower expected damage per building than 74% of U.S. towns (21,298).
Randolph Township’s residents live in 5 census tracts; FEMA’s figures are combined by where they live.
The typical New Jersey town has higher expected damage than 56% of U.S. towns; within the state, Randolph Township has less expected damage per building than 83% of New Jersey towns.
In dollars, FEMA expects about $8.5M a year in losses across Randolph Township: $6.8M to buildings, the rest to people and crops.
Does Randolph Township flood? Sometimes: 22 flood claims since 1978
Every paid claim on a federal flood insurance policy in Randolph Township, from FEMA’s records: 2.4 per 1,000 homes, fewer than 58% of the 13,809 U.S. towns with a flood insurance record.
- Hurricane Irene8 claims · $98K
- The March 2010 nor’easter2 claims · $28K
- The Late winter storms1 claim · $473
Randolph Township 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.13 federal disasters brought FEMA money to Randolph Township
Disasters that paid out in Randolph Township itself (aid to households or repair grants to Randolph Township), newest first, with that year’s flood claims.
- 2021Remnants of Hurricane Ida60 households applied for aid$45K aid approved1 flood claim paid for it, $500K
- 2021Severe Winter Storm and Snowstorm$172K to Randolph Township for repairs
- 2020Tropical Storm Isaias$316K to Randolph Township for repairs
- 2018Severe Winter Storm and Snowstorm$231K to Randolph Township for repairs
- 2016Severe Winter Storm and Snowstorm$99K to Randolph Township for repairs
- 2012Hurricane Sandy254 households applied for aid$7K aid approved$407K to Randolph Township for repairs
Show all 13
- 2011Severe Storm$263K to Randolph Township for repairs
- 2011Hurricane Irene168 households applied for aid$366K aid approved$110K to Randolph Township for repairs8 flood claims paid for it, $98K
- 2010Severe Winter Storm and Snowstorm$69K to Randolph Township for repairs
- 2010Severe Storms and Flooding2 households applied for aid$10K aid approved$10K to Randolph Township for repairs
- 2007Severe Storms and Inland and Coastal Flooding4 households applied for aid$579 aid approved
- 2005Severe Storms and Flooding6 households applied for aid$13K aid approved2 flood claims paid that year
- 1999Hurricane Floyd Major Disaster Declarations$15K to Randolph Township for repairs1 flood claim paid for it, $3K
Morris County has had 25 natural disasters declared by the President since 1953, most often severe storms, then hurricanes and tropical storms. Not counted: the 2005 Hurricane Katrina evacuee emergency, which covered counties that took in evacuees; the 2001 World Trade Center declarations.
Old photos of Randolph Township after a storm or flood belong in the town’s history. Add one, or share what you remember below.
Add to the Randolph Township archive →Randolph Township and its neighbors
Randolph Township is 4th of the 8 graded towns here, from least expected damage per building to most. Tap a town to see its hazards.
| Town | Hazard risk | Mostly (buildings) | Flood claims |
|---|---|---|---|
| Victory Gardens | Aless damage than 89% | river and rain flooding | — |
| Mine Hill Township | A−less damage than 83% | river and rain flooding | 4 |
| Roxbury Township | A−less damage than 79% | river and rain flooding | 20 |
| Randolph Township | B+less damage than 74% | river and rain flooding | 22 |
| Rockaway Township | B+less damage than 71% | river and rain flooding | 53 |
| Chester Township | Bless damage than 58% | river and rain flooding | 3 |
| Mendham Township | C+more damage than 56% | river and rain flooding | 22 |
| Dover | Dmore damage than 87% | river and rain flooding | 530 |
| Succasunna | — | a Census area inside a town; graded with the town | |
Hazard risk = FEMA’s expected yearly building damage per dollar of building value, vs. the 21,298 U.S. towns we grade; the map is shaded by fifths of the same scale. Flood claims = paid federal flood insurance claims on record.
Get ready for what Randolph Township faces
A short kit for the hazards that drive the building damage here, what to check before you buy, and where neighbors get alerts.
- Turn around at flooded roads: a foot of moving water can carry off a car.
- Flood insurance usually takes 30 days to start, so buy it before the forecast.
- Keep papers and medicines up high, in a grab-and-go bag.
- The season runs June through November and peaks from mid-August to mid-October.
- Bring in porch furniture and anything the wind can throw.
- Fill the gas tank and charge phones before the storm arrives.
- Look up the address on FEMA’s flood map.
- Ask the seller or landlord whether it has ever flooded, and what flood insurance costs there.
- Get a flood insurance quote early: policies usually start 30 days after you buy.
Know where neighbors sign up for alerts? Add it to the Handbook so everyone has it.
Questions about natural hazards in Randolph Township
Is Randolph Township at risk for natural disasters?
On FEMA’s National Risk Index, Randolph Township has lower expected damage per building than 74% of U.S. towns: B+ for hazard risk, #82 of 468 in New Jersey. Most of the expected damage is river and rain flooding (87%) and hurricanes (5%). This is FEMA’s model of an average year for today’s buildings, not a forecast.
Does Randolph Township flood?
Flood insurance has paid 22 claims in Randolph Township since 1978, $717K in all, or 2.4 per 1,000 homes, fewer than 58% of U.S. towns with a flood insurance record. 2 properties have flooded more than once. The most claims came from Hurricane Irene (8).
Is Randolph Township in a flood zone?
Flood zones are drawn street by street, so the answer depends on the address: look it up on FEMA’s flood map. In Morris County, 1.4% of all homes carry federal flood insurance.
How much is flood insurance in Randolph Township?
FEMA’s Community Rating System list shows no discount for Randolph Township’s flood program. Premiums depend on the building; policies usually start 30 days after you buy, so get a quote early.
What was the biggest storm in Randolph Township?
By FEMA money that reached Randolph Township, Hurricane Irene (2011): 168 households applied for aid, $366K approved, and $110K to Randolph Township for repairs. By flood claims, Hurricane Irene: 8 paid, $98K.
Is Randolph Township at risk from river and rain flooding?
It is the largest share of the building damage FEMA expects here (87%), and Randolph Township’s rate for it is higher than 52% of U.S. census tracts.
Storm stories
Memories, warnings and help from neighbors in Randolph Township.
Sources: FEMA National Risk Index v1.20 (December 2025), census-tract table, combined by where Randolph Township’s residents lived in the 2020 census; 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. Homes: Census ACS 2020–24. Preparedness tips: Ready.gov. FEMA’s model is an average of expected damage, not a forecast. How hazard risk is graded.