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C+Hazard risk
Natural hazards in Greenville · FEMA

On FEMA’s figures, Greenville faces about as much hazard damage per building as the typical U.S. town, mostly from river and rain flooding

On FEMA’s National Risk Index, Greenville gets a C+ for hazard risk: higher expected damage per building than 55% of U.S. towns. Most of that expected damage is river and rain flooding (76%), then hurricanes (14%). Flood insurance has paid 2 claims here since 2007.

River and rain flooding 76%Hurricanes 14%Tornadoes 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

more than 55%of U.S. townsLess damageMoreExpected yearly damage per dollar of building, vs. the 21,298 U.S. towns we grade
Hazard risk
C+
in New Hampshire · higher than 55% of U.S. towns
Main hazard
River and rain flooding
76% of expected building damage
Flood claims
2
paid since 2007 · $4K
Disasters paid out here
11
of 26 declared for Hillsborough County
By hazard

What Greenville 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

76%of expected building damage
Above average · higher than 66% of U.S. census tracts
Recorded about 2 times a year in the area

Hurricanes

14%of expected building damage
Well above average · higher than 83% of U.S. census tracts
Recorded about once every 9 years in the area
Smaller shares here
 Tornadoes Earthquakes Ice storms Strong wind Wildfire Winter storms Lightning Hail Cold waves 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 Greenville’s grade

River and rain flooding is 76% of the building damage FEMA expects in Greenville, and Greenville’s rate of river and rain flooding damage is higher than 66% of U.S. census tracts. Ice storms add 3%, at a rate in the top 6% of U.S. census tracts.

Where Greenville sits
Greenville
Least damageMiddleMost damage

C+ higher expected damage per building than 55% of U.S. towns (21,298).

All of Greenville’s residents live in one census tract; the figures are that tract’s.

What drives the damage to buildings
River and rain flooding76%Hurricanes14%Tornadoes4%Everything else7%

In dollars, FEMA expects about $396K a year in losses across Greenville: $318K to buildings, the rest to people and crops.

Shared tract.All of Greenville’s 1,974 residents (2020 census) live in one census tract, which it shares with Greenville CDP (1,074 residents). FEMA publishes its model by tract, so the rate and the hazard mix are the tract’s, the same for all of them. The flood claims below are the town’s own.
A shared figure. The grade describes the whole tract, not each street in it, and FEMA’s model is an average year for today’s buildings, not a record: the claims below are the record.

How TownRatings grades hazard risk →

Flood insurance claims

Does Greenville flood? Rarely: 2 flood claims since 2007

Every paid claim on a federal flood insurance policy in Greenville, from FEMA’s records: 2.0 per 1,000 homes, fewer than 62% of the 13,809 U.S. towns with a flood insurance record.

Paid flood claims, by year
2007: 1 claim2008: 0 claims2009: 0 claims2010: 0 claims2011: 0 claims2012: 0 claims2013: 0 claims2014: 0 claims2015: 0 claims2016: 0 claims2017: 1 claim2018: 0 claims2019: 0 claims2020: 0 claims2021: 0 claims2022: 0 claims2023: 0 claims2024: 0 claims2025: 0 claims2026: 0 claims20072017
20072026
2
paid claims since 2007
$4K
paid to owners
0
homes flooded more than once
$2K
average claim
of homes in flood zones are insured
of all homes are insured
No community discount

Greenville isn’t in FEMA’s Community Rating System, which cuts flood insurance up to 45% in towns that do extra flood-proofing.

Insurance rates: Hillsborough County.
Disasters

11 federal disasters brought FEMA money to Greenville

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

  1. 2015Severe Winter Storm and Snowstorm$13K to the Town of Greenville for repairs
  2. 2013Severe Winter Storm and Snowstorm$10K to the Town of Greenville for repairs
  3. 2011Severe Storm and Snowstorm$4K to the Town of Greenville for repairs
  4. 2011Hurricane Irene$2K to the Town of Greenville for repairs
  5. 2010Severe Storms and Flooding$1.3M to the Town of Greenville for repairs
  6. 2008Severe Winter Storm$128K to the Town of Greenville for repairs
Show all 11
  1. 2007Severe Storms and Flooding13 households applied for aid$10K aid approved$43K to the Town of Greenville for repairs1 flood claim paid that year
  2. 2006Severe Storms and Flooding$2K to the Town of Greenville for repairs
  3. 2005Severe Storms and Flooding1 households applied for aid$491 aid approved
  4. 2005Record And/or Near Record Snow$2K to the Town of Greenville for repairs
  5. 2003Snow$4K to the Town of Greenville for repairs
Disasters declared, by decade
Paid out in GreenvilleHillsborough County only

Hillsborough County has had 26 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 Greenville after a storm or flood belong in the town’s history. Add one, or share what you remember below.

Add to the Greenville archive →
Next door

Greenville and its neighbors

Greenville is 3rd of the 3 graded towns here, from least expected damage per building to most. Tap a town to see its hazards.

Mason: hazard risk B+New Ipswich: hazard risk BMasonNew IpswichGreenville
Lowest fifthSecondMiddleFourthHighest fifth
TownHazard riskMostly (buildings)Flood claims
MasonB+less damage than 74%river and rain flooding1
New IpswichBless damage than 58%river and rain flooding1
GreenvilleC+more damage than 55%river and rain flooding2

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 Greenville 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 ↗
Hurricane season
  • 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.
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 Greenville

Is Greenville at risk for natural disasters?

On FEMA’s National Risk Index, Greenville has higher expected damage per building than 55% of U.S. towns: C+ for hazard risk. Most of the expected damage is river and rain flooding (76%) and hurricanes (14%). The figures are for the one census tract the town shares with its neighbors. This is FEMA’s model of an average year for today’s buildings, not a forecast.

Does Greenville flood?

Flood insurance has paid 2 claims in Greenville since 2007, $4K in all, or 2.0 per 1,000 homes, fewer than 62% of U.S. towns with a flood insurance record.

Is Greenville 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 Hillsborough County, 34% of homes in mapped flood zones carry federal flood insurance, and 0.7% of all homes do.

How much is flood insurance in Greenville?

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

By FEMA money that reached Greenville, Severe Storms and Flooding (2010): $1.3M to the Town of Greenville for repairs.

Is Greenville at risk from river and rain flooding?

It is the largest share of the building damage FEMA expects here (76%), and Greenville’s rate for it is higher than 66% of U.S. census tracts.

Storm stories

Memories, warnings and help from neighbors in Greenville.

Town Square →
Start the conversation

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