Photo: Quintin Soloviev · CC BY 4.0For coastal flooding, New Haven’s building-damage rate is in the top 2% of U.S. census tracts
On FEMA’s National Risk Index, New Haven gets a C+ for hazard risk: higher expected damage per building than 61% of U.S. towns, #71 of 155 in Connecticut. Most of that expected damage is river and rain flooding (62%), then hurricanes (22%). Flood insurance has paid 313 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 New Haven’s natural hazards
From FEMA’s model and FEMA’s records, below.
What New Haven 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
Coastal flooding
Earthquakes
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 New Haven’s grade
River and rain flooding is 62% of the building damage FEMA expects in New Haven, and New Haven’s rate of river and rain flooding damage is higher than 58% of U.S. census tracts. Coastal flooding adds 7%, at a rate in the top 2% of U.S. census tracts.
C+ #71 of 155 in Connecticut; higher expected damage per building than 61% of U.S. towns (21,298).
New Haven’s residents live in 32 census tracts; FEMA’s figures are combined by where they live.
The typical Connecticut town has higher expected damage than 62% of U.S. towns; within the state, New Haven has less expected damage per building than 55% of Connecticut towns.
Among the 400 U.S. cities of 100,000 or more, New Haven has higher expected damage per building than 52% (#209 of 400). Because it is so big, its total expected yearly loss, $33.3M, is the 336th largest of those 400.
Does New Haven flood? Yes: 313 flood claims since 1978
Every paid claim on a federal flood insurance policy in New Haven, from FEMA’s records: 5.2 per 1,000 homes, more than 61% of the 13,809 U.S. towns with a flood insurance record.
- Hurricane Sandy46 claims · $2.0M
- Hurricane Irene31 claims · $418K
New Haven is in FEMA’s Community Rating System (class 7) for its flood-proofing work.
Insurance rates: the county.6 federal disasters brought FEMA money to New Haven
Disasters that paid out in New Haven itself (aid to households or repair grants to the City of New Haven), newest first, with that year’s flood claims.
- 2024Severe Storm, Flooding, Landslides, and Mudslides76 households applied for aid$17K aid approved1 flood claim paid that year
- 2021Remnants of Hurricane Ida39 households applied for aid$66K aid approved4 flood claims paid that year
- 2012Hurricane Sandy292 households applied for aid$78K aid approved46 flood claims paid for it, $2.0M
- 2011Tropical Storm Irene298 households applied for aid$198K aid approved31 flood claims paid for it, $418K
- 2010Severe Storms and Flooding30 households applied for aid$16K aid approved9 flood claims paid that year
- 2007Severe Storms and Flooding55 households applied for aid$55K aid approved9 flood claims paid that year
Old photos of New Haven after a storm or flood belong in the town’s history. Add one, or share what you remember below.
Add to the New Haven archive →New Haven and its neighbors
New Haven is 5th 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 |
|---|---|---|---|
| West Haven | B−less damage than 53% | river and rain flooding | 392 |
| Woodbridge | B−more damage than 51% | river and rain flooding | 60 |
| Orange | C+more damage than 56% | river and rain flooding | 129 |
| North Haven | C+more damage than 57% | river and rain flooding | 153 |
| New Haven | C+more damage than 61% | river and rain flooding | 313 |
| Hamden | Cmore damage than 72% | river and rain flooding | 404 |
| East Haven | Cmore damage than 75% | river and rain flooding | 1,347 |
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 New Haven 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.
- Know your evacuation zone and the way off the coast.
- Storm surge comes fast: leave when you’re told, not when the water arrives.
- Move cars to high ground before king tides and nor’easters.
- Drop, cover and hold on.
- Strap tall furniture and the water heater to the wall.
- Know how to shut off the gas.
- 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.
- New Haven residents get 15% off flood insurance.
Know where neighbors sign up for alerts? Add it to the Handbook so everyone has it.
Questions about natural hazards in New Haven
Is New Haven at risk for natural disasters?
On FEMA’s National Risk Index, New Haven has higher expected damage per building than 61% of U.S. towns: C+ for hazard risk, #71 of 155 in Connecticut. Most of the expected damage is river and rain flooding (62%) and hurricanes (22%). This is FEMA’s model of an average year for today’s buildings, not a forecast.
Does New Haven flood?
Flood insurance has paid 313 claims in New Haven since 1978, $4.7M in all, or 5.2 per 1,000 homes, more than 61% of U.S. towns with a flood insurance record. 45 properties have flooded more than once. The most claims came from Hurricane Sandy (46).
Is New Haven 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 the county, 52% of homes in mapped flood zones carry federal flood insurance, and 3.2% of all homes do.
How much is flood insurance in New Haven?
New Haven is in FEMA’s Community Rating System (class 7), which takes 15% off federal flood insurance policies for its flood-proofing work. Premiums depend on the building; policies usually start 30 days after you buy, so get a quote early.
What was the biggest storm in New Haven?
By FEMA money that reached New Haven, Tropical Storm Irene (2011): 298 households applied for aid, $198K approved. By flood claims, Hurricane Sandy: 46 paid, $2.0M.
Is New Haven at risk from river and rain flooding?
It is the largest share of the building damage FEMA expects here (62%), and New Haven’s rate for it is higher than 58% of U.S. census tracts.
Storm stories
Memories, warnings and help from neighbors in New Haven.
Sources: FEMA National Risk Index v1.20 (December 2025), census-tract table, combined by where New Haven’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.