On FEMA’s figures, Watchung faces more hazard damage per building than 83% of U.S. towns, mostly from river and rain flooding
On FEMA’s National Risk Index, Watchung gets a C− for hazard risk: higher expected damage per building than 83% of U.S. towns, #392 of 468 in New Jersey. Most of that expected damage is river and rain flooding (91%). Flood insurance has paid 24 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 Watchung’s natural hazards
From FEMA’s model and FEMA’s records, below.
What Watchung 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
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 Watchung’s grade
River and rain flooding is 91% of the building damage FEMA expects in Watchung, and Watchung’s rate of river and rain flooding damage is in the top 9% of U.S. census tracts.
C− #392 of 468 in New Jersey; higher expected damage per building than 83% of U.S. towns (21,298).
All of Watchung’s residents live in one census tract; the figures are that tract’s.
The typical New Jersey town has higher expected damage than 56% of U.S. towns; within the state, Watchung has more expected damage per building than 84% of New Jersey towns.
In dollars, FEMA expects about $4.8M a year in losses across Watchung: $4.3M to buildings, the rest to people and crops.
Does Watchung flood? Sometimes: 24 flood claims since 1978
Every paid claim on a federal flood insurance policy in Watchung, from FEMA’s records: 9.7 per 1,000 homes, more than 73% of the 13,809 U.S. towns with a flood insurance record.
- The 2025 July NYC Metro Area Flooding4 claims · $146K
- Hurricane Ida4 claims · $186K
- Hurricane Irene3 claims · $87K
Watchung isn’t in FEMA’s Community Rating System, which cuts flood insurance up to 45% in towns that do extra flood-proofing.
Insurance rates: Somerset County.9 federal disasters brought FEMA money to Watchung
Disasters that paid out in Watchung itself (aid to households or repair grants to the Borough of Watchung), newest first, with that year’s flood claims.
- 2021Remnants of Hurricane Ida70 households applied for aid$189K aid approved$1.3M to the Borough of Watchung for repairs4 flood claims paid for it, $186K
- 2018Severe Winter Storm and Snowstorm$198K to the Borough of Watchung for repairs
- 2016Severe Winter Storm and Snowstorm$46K to the Borough of Watchung for repairs
- 2012Hurricane Sandy187 households applied for aid$17K aid approved$547K to the Borough of Watchung for repairs
- 2011Hurricane Irene52 households applied for aid$83K aid approved$76K to the Borough of Watchung for repairs3 flood claims paid for it, $87K
- 2010Severe Winter Storm and Snowstorm$24K to the Borough of Watchung for repairs
Show all 9
- 2010Severe Storms and Flooding5 households applied for aid$7K aid approved
- 2007Severe Storms and Inland and Coastal Flooding7 households applied for aid$9K aid approved$6K to the Borough of Watchung for repairs1 flood claim paid that year
- 1999Hurricane Floyd Major Disaster Declarations$106K to the Borough of Watchung for repairs1 flood claim paid for it, $4K
Somerset County has had 22 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 Watchung after a storm or flood belong in the town’s history. Add one, or share what you remember below.
Add to the Watchung archive →Watchung and its neighbors
Watchung is 3rd of the 7 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 |
|---|---|---|---|
| Warren Township | B−less damage than 50% | river and rain flooding | 40 |
| Berkeley Heights Township | C+more damage than 62% | river and rain flooding | 67 |
| Watchung | C−more damage than 83% | river and rain flooding | 24 |
| Green Brook Township | C−more damage than 85% | river and rain flooding | 268 |
| Scotch Plains Township | Dmore damage than 86% | river and rain flooding | 225 |
| Plainfield | Dmore damage than 90% | river and rain flooding | 961 |
| North Plainfield | Dmore damage than 91% | river and rain flooding | 523 |
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 Watchung 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.
- 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 Watchung
Is Watchung at risk for natural disasters?
On FEMA’s National Risk Index, Watchung has higher expected damage per building than 83% of U.S. towns: C− for hazard risk, #392 of 468 in New Jersey. Most of the expected damage is river and rain flooding (91%). The figures are for the one census tract the town shares with its neighbors. This is FEMA’s model of an average year for today’s buildings, not a forecast.
Does Watchung flood?
Flood insurance has paid 24 claims in Watchung since 1978, $537K in all, or 9.7 per 1,000 homes, more than 73% of U.S. towns with a flood insurance record. 6 properties have flooded more than once. The most claims came from 2025 July NYC Metro Area Flooding (4).
Is Watchung 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 Somerset County, 53% of homes in mapped flood zones carry federal flood insurance, and 1.4% of all homes do.
How much is flood insurance in Watchung?
FEMA’s Community Rating System list shows no discount for Watchung’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 Watchung?
By FEMA money that reached Watchung, Remnants of Hurricane Ida (2021): 70 households applied for aid, $189K approved, and $1.3M to the Borough of Watchung for repairs. By flood claims, 2025 July NYC Metro Area Flooding: 4 paid, $146K.
Is Watchung at risk from river and rain flooding?
It is the largest share of the building damage FEMA expects here (91%), and Watchung’s rate for it is in the top 9% of U.S. census tracts.
Storm stories
Memories, warnings and help from neighbors in Watchung.
Sources: FEMA National Risk Index v1.20 (December 2025), census-tract table, combined by where Watchung’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.