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BHazard risk
Natural hazards in New Haven Township · FEMA

On FEMA’s figures, New Haven Township faces less hazard damage per building than 61% of U.S. towns, mostly from river and rain flooding

On FEMA’s National Risk Index, New Haven Township gets a B for hazard risk: lower expected damage per building than 61% of U.S. towns. Most of that expected damage is river and rain flooding (77%), then tornadoes (16%). FEMA’s files show no paid flood insurance claims here.

River and rain flooding 77%Tornadoes 16%Hail 4%

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

less than 61%of U.S. townsLess damageMoreExpected yearly damage per dollar of building, vs. the 21,298 U.S. towns we grade
Hazard risk
B
in Minnesota · lower than 61% of U.S. towns
Main hazard
River and rain flooding
77% of expected building damage
Flood claims
0
paid since 1978 · $0
Disasters paid out here
1
of 12 declared for Olmsted County
By hazard

What New Haven 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

77%of expected building damage
About average · higher than 54% of U.S. census tracts
Recorded about once a year in the area

Tornadoes

16%of expected building damage
Well above average · in the top 10% of U.S. census tracts
Smaller shares here
 Hail Strong wind Lightning Earthquakes Wildfire Winter storms Ice storms Cold waves Heat waves Landslides
FEMA models no building damage here
Coastal floodingHurricanesAvalanchesTsunamisVolcanic activity
People, not buildings.Counting harm to people as well as buildings, FEMA’s model puts cold waves at 20% of New Haven Township’s expected losses. Cold waves do little damage to buildings (0.0%), so they aren’t part of the grade.

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.

Flood risk changes street by street. Check a specific address on FEMA’s flood map, and ask about flood insurance before you buy.
Hazard risk grade

What’s behind New Haven Township’s grade

River and rain flooding is 77% of the building damage FEMA expects in New Haven Township, and New Haven Township’s rate of river and rain flooding damage is higher than 54% of U.S. census tracts. Tornadoes add 16%, at a rate in the top 10% of U.S. census tracts.

Where New Haven Township sits
New Haven Township
Least damageMiddleMost damage

B lower expected damage per building than 61% of U.S. towns (21,298).

New Haven Township’s residents live in 2 census tracts; FEMA’s figures are combined by where they live.

What drives the damage to buildings
River and rain flooding77%Tornadoes16%Hail4%Everything else3%

In dollars, FEMA expects about $676K a year in losses across New Haven Township: $422K to buildings, the rest to people and crops.

A small-area figure. New Haven Township covers 2 census tracts, combined by where residents live. FEMA’s model is an average year for today’s buildings, not a record: the claims and disasters below are the record.

How TownRatings grades hazard risk →

Flood insurance claims

Does New Haven Township flood? No paid flood claims on record

FEMA’s records show no paid flood insurance claims in New Haven Township. That’s not a promise: most homes don’t carry flood insurance, so small floods go unrecorded.

of homes in flood zones are insured
of all homes are insured
No community discount

New Haven 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: Olmsted County.
Disasters

1 federal disaster brought FEMA money to New Haven Township

Disasters that paid out in New Haven Township itself (aid to households or repair grants to New Haven Township), newest first, with that year’s flood claims.

  1. 2010Severe Storms and Flooding$9K to New Haven Township for repairs
Disasters declared, by decade
Paid out in New Haven TownshipOlmsted County only

Olmsted County has had 12 natural disasters declared by the President since 1953, most often severe storms, then floods. Not counted: the 2005 Hurricane Katrina evacuee emergency, which covered counties that took in evacuees.

Were you here?

Old photos of New Haven Township after a storm or flood belong in the town’s history. Add one, or share what you remember below.

Add to the New Haven Township archive →
Next door

New Haven Township and its neighbors

New Haven Township is 2nd of the 5 graded towns here, from least expected damage per building to most. Tap a town to see its hazards.

Pine Island: hazard risk CMilton Township: not gradedKalmar Township: hazard risk B+Oronoco Township: hazard risk B−Oronoco: hazard risk B−Roscoe Township: not gradedPine IslandMilton TownshipKalmar TownshipOronoco TownshipOronocoRoscoe TownshipNew Haven Township
Lowest fifthSecondMiddleFourthHighest fifth
TownHazard riskMostly (buildings)Flood claims
Kalmar TownshipB+less damage than 65%river and rain flooding3
New Haven TownshipBless damage than 61%river and rain flooding0
Oronoco TownshipB−more damage than 54%river and rain flooding1
OronocoB−more damage than 54%river and rain flooding3
Pine IslandCmore damage than 67%river and rain flooding36
Milton Township—800 residents; we grade 1,000+
Roscoe Township—896 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.

Be ready

Get ready for what New Haven 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.

When the river rises
  • 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.
More from Ready.gov ↗
Tornado warnings
  • Pick your spot now: the lowest floor, an inside room, no windows.
  • A watch means be ready; a warning means take cover now.
  • Keep shoes and a flashlight by the bed.
More from Ready.gov ↗
Before you buy or rent
  • 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.
When a storm is coming
Forecast and alertsWeather →911, the nearest ERSafety →

Know where neighbors sign up for alerts? Add it to the Handbook so everyone has it.

Questions about natural hazards in New Haven Township

Is New Haven Township at risk for natural disasters?

On FEMA’s National Risk Index, New Haven Township has lower expected damage per building than 61% of U.S. towns: B for hazard risk. Most of the expected damage is river and rain flooding (77%) and tornadoes (16%). This is FEMA’s model of an average year for today’s buildings, not a forecast.

Is New Haven 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 Olmsted County, 16% of homes in mapped flood zones carry federal flood insurance, and 0.3% of all homes do.

How much is flood insurance in New Haven Township?

FEMA’s Community Rating System list shows no discount for New Haven 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 New Haven Township?

By FEMA money that reached New Haven Township, Severe Storms and Flooding (2010): $9K to New Haven Township for repairs.

Is New Haven Township at risk from river and rain flooding?

It is the largest share of the building damage FEMA expects here (77%), and New Haven Township’s rate for it is higher than 54% of U.S. census tracts.

Storm stories

Memories, warnings and help from neighbors in New Haven Township.

Town Square →
Start the conversation

Sources: FEMA National Risk Index v1.20 (December 2025), census-tract table, combined by where New Haven 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.