Photo: Famartin · CC BY-SA 4.0Storms, floods and disasters in Monmouth Junction
Monmouth Junction isn’t graded for hazard risk: Monmouth Junction is a Census area inside a town, graded with the town. Flood insurance has paid 9 claims here since 1999.
What Monmouth Junction 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
Earthquakes
Strong wind
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.
Does Monmouth Junction flood? Rarely: 9 flood claims since 1999
Every paid claim on a federal flood insurance policy in Monmouth Junction, from FEMA’s records.
- Hurricane Irene3 claims · $36K
- Hurricane Ida3 claims · $26K
- The April 2007 nor’easter1 claim · $13K
Monmouth Junction isn’t in FEMA’s Community Rating System, which cuts flood insurance up to 45% in towns that do extra flood-proofing.
Insurance rates: Middlesex County.The storms Monmouth Junction remembers
None of the 22 disasters declared for Middlesex County shows FEMA aid or repair money reaching Monmouth Junction itself in FEMA’s records, so these are its biggest flood-claim years.
- 20113 flood claims paidThe year of Severe Storm, declared for Middlesex County
- 20213 flood claims paidThe year of Remnants of Hurricane Ida, declared for Middlesex County
- 19991 flood claims paidThe year of Hurricane Floyd Major Disaster Declarations, declared for Middlesex County
Middlesex 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 Monmouth Junction after a storm or flood belong in the town’s history. Add one, or share what you remember below.
Add to the Monmouth Junction archive →Monmouth Junction and its neighbors
How expected damage per building compares across the town line. Tap a town to see its hazards.
| Town | Hazard risk | Mostly (buildings) | Flood claims |
|---|---|---|---|
| South Brunswick Township | B+less damage than 70% | river and rain flooding | 42 |
| Plainsboro Township | Dmore damage than 89% | river and rain flooding | 11 |
| Dayton | — | a Census area inside a town; graded with the town | |
| Deans | — | a Census area inside a town; graded with the town | |
| Heathcote | — | 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 Monmouth Junction 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.
- Drop, cover and hold on.
- Strap tall furniture and the water heater to the wall.
- Know how to shut off the gas.
- Trim dead limbs over the house and driveway.
- Tie down trash cans and outdoor furniture.
- Stay clear of downed lines and call the utility.
- 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 Monmouth Junction
Does Monmouth Junction flood?
Flood insurance has paid 9 claims in Monmouth Junction since 1999, $88K in all. The most claims came from Hurricane Irene (3).
Is Monmouth Junction 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 Middlesex County, 54% of homes in mapped flood zones carry federal flood insurance, and 1.2% of all homes do.
How much is flood insurance in Monmouth Junction?
FEMA’s Community Rating System list shows no discount for Monmouth Junction’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 Monmouth Junction?
By flood claims, Hurricane Irene: 3 paid, $36K.
Storm stories
Memories, warnings and help from neighbors in Monmouth Junction.
Sources: FEMA National Risk Index v1.20 (December 2025), census-tract table, combined by where Monmouth Junction’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.