Storms, floods and disasters in New Haven
New Haven isn’t graded for hazard risk: New Haven has 464 residents; we grade towns of 1,000 or more. Flood insurance has paid 11 claims here since 1997.
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
Earthquakes
Strong wind
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 New Haven flood? Sometimes: 11 flood claims since 1997
Every paid claim on a federal flood insurance policy in New Haven, from FEMA’s records.
- The Mid-spring storms10 claims · $208K
New Haven isn’t in FEMA’s Community Rating System, which cuts flood insurance up to 45% in towns that do extra flood-proofing.
Insurance rates: Gallatin County.1 federal disaster brought FEMA money to New Haven
Disasters that paid out in New Haven itself (aid to households or repair grants to the Village of New Haven), newest first, with that year’s flood claims.
- 2011Severe Storms and Flooding66 households applied for aid$602K aid approved10 flood claims paid that year
Gallatin County has had 8 natural disasters declared by the President since 1953, most often severe storms, then winter storms. Not counted: the 2005 Hurricane Katrina evacuee emergency, which covered counties that took in evacuees.
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
How expected damage per building compares across the town line. Tap a town to see its hazards.
| Town | Hazard risk | Mostly (buildings) | Flood claims |
|---|---|---|---|
| New Haven Township | — | 465 residents; we grade 1,000+ | |
| Emma Township | — | 86 residents; we grade 1,000+ | |
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.
- 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.
- 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 New Haven
Does New Haven flood?
Flood insurance has paid 11 claims in New Haven since 1997, $220K in all. The most claims came from Mid-spring storms (10).
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 Gallatin County, 7% of homes in mapped flood zones carry federal flood insurance, and 0.8% of all homes do.
How much is flood insurance in New Haven?
FEMA’s Community Rating System list shows no discount for New Haven’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 New Haven?
By FEMA money that reached New Haven, Severe Storms and Flooding (2011): 66 households applied for aid, $602K approved. By flood claims, Mid-spring storms: 10 paid, $208K.
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.