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Mead-Zimmerman HouseMead-Zimmerman House · Photo: Nyttend · Public domain
A−Hazard risk
Natural hazards in Greenwich Township · FEMA

FEMA expects less hazard damage per building in Greenwich Township than in 76% of U.S. towns, mostly from river and rain flooding

On FEMA’s National Risk Index, Greenwich Township gets an A− for hazard risk: lower expected damage per building than 76% of U.S. towns. Most of that expected damage is river and rain flooding (71%), then tornadoes (12%). FEMA’s files show no paid flood insurance claims here.

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 76%of U.S. townsLess damageMoreExpected yearly damage per dollar of building, vs. the 21,298 U.S. towns we grade
By hazard

What Greenwich 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

71%of expected building damage
Below average · lower than 65% of U.S. census tracts
Recorded about once a year in the area

Tornadoes

12%of expected building damage
Above average · higher than 74% of U.S. census tracts

Hail

7%of expected building damage
Well above average · higher than 84% of U.S. census tracts
Recorded about 4 times a year in the area
Smaller shares here
 Strong wind Earthquakes Ice storms Winter storms Hurricanes Lightning Cold waves Wildfire Heat waves Landslides
FEMA models no building damage here
Coastal floodingAvalanchesTsunamisVolcanic activity

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 Greenwich Township’s grade

River and rain flooding is 71% of the building damage FEMA expects in Greenwich Township, and Greenwich Township’s rate of river and rain flooding damage is lower than 65% of U.S. census tracts. Next is tornadoes at 12% (higher than 74% of U.S. census tracts).

Where Greenwich Township sits
Greenwich Township
Least damageMiddleMost damage

A− lower expected damage per building than 76% of U.S. towns (21,298).

Greenwich 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 flooding71%Tornadoes12%Hail7%Everything else10%

In dollars, FEMA expects about $288K a year in losses across Greenwich Township: $217K to buildings, the rest to people and crops.

A small-area figure. Greenwich 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 Greenwich Township flood? No paid flood claims on record

FEMA’s records show no paid flood insurance claims in Greenwich 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

Greenwich 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: Huron County.
Disasters

2 federal disasters brought FEMA money to Greenwich Township

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

  1. 2008Record Snow and Near Record Snow$2K to Greenwich Township for repairs
  2. 2004Severe Winter Storms, Flooding, and Mudslides$2K to Greenwich Township for repairs
Disasters declared, by decade
Paid out in Greenwich TownshipHuron County only

Huron County has had 10 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.

Were you here?

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

Add to the Greenwich Township archive →
Next door

Greenwich Township and its neighbors

Greenwich Township is 2nd of the 3 graded towns here, from least expected damage per building to most. Tap a town to see its hazards.

Fitchville Township: hazard risk B+Ruggles Township: not gradedRipley Township: hazard risk A−Fitchville TownshipRuggles TownshipRipley TownshipGreenwich Township
Lowest fifthSecondMiddleFourthHighest fifth
TownHazard riskMostly (buildings)Flood claims
Ripley TownshipA−less damage than 78%river and rain flooding—
Greenwich TownshipA−less damage than 76%river and rain flooding0
Fitchville TownshipB+less damage than 70%river and rain flooding—
Ruggles Township—540 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 Greenwich 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 ↗
Hail
  • Park in a garage or under cover when storms are forecast.
  • Stay away from windows while it falls.
  • Photograph roof and car damage for your insurer.
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 Greenwich Township

Is Greenwich Township at risk for natural disasters?

On FEMA’s National Risk Index, Greenwich Township has lower expected damage per building than 76% of U.S. towns: A− for hazard risk. Most of the expected damage is river and rain flooding (71%) and tornadoes (12%). This is FEMA’s model of an average year for today’s buildings, not a forecast.

Is Greenwich 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 Huron County, 18% of homes in mapped flood zones carry federal flood insurance, and 0.3% of all homes do.

How much is flood insurance in Greenwich Township?

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

By FEMA money that reached Greenwich Township, Severe Winter Storms, Flooding, and Mudslides (2004): $2K to Greenwich Township for repairs.

Is Greenwich Township at risk from river and rain flooding?

It is the largest share of the building damage FEMA expects here (71%), and Greenwich Township’s rate for it is lower than 65% of U.S. census tracts.

Storm stories

Memories, warnings and help from neighbors in Greenwich Township.

Town Square →
Start the conversation

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