Photo: Bernardgeorgeh · CC BY-SA 4.0FEMA expects about as much hazard damage per building in Gaston as in the typical U.S. town, mostly from river and rain flooding
On FEMA’s National Risk Index, Gaston gets a B for hazard risk: lower expected damage per building than 60% of U.S. towns. Most of that expected damage is river and rain flooding (58%), then hurricanes (17%). 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
What Gaston 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
Tornadoes
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 Gaston’s grade
River and rain flooding is 58% of the building damage FEMA expects in Gaston, and Gaston’s rate of river and rain flooding damage is lower than 65% of U.S. census tracts. Ice storms add 3%, at a rate in the top 7% of U.S. census tracts.
B lower expected damage per building than 60% of U.S. towns (21,298).
Gaston’s residents live in 6 census tracts; FEMA’s figures are combined by where they live.
In dollars, FEMA expects about $425K a year in losses across Gaston: $236K to buildings, the rest to people and crops.
Does Gaston flood? No paid flood claims on record
FEMA’s records show no paid flood insurance claims in Gaston. That’s not a promise: most homes don’t carry flood insurance, so small floods go unrecorded.
Gaston isn’t in FEMA’s Community Rating System, which cuts flood insurance up to 45% in towns that do extra flood-proofing.
Insurance rates: Lexington County.4 federal disasters brought FEMA money to Gaston
Disasters that paid out in Gaston itself (aid to households or repair grants to the Town of Gaston), newest first, with that year’s flood claims.
- 2024Hurricane Helene1,134 households applied for aid$1.5M aid approved
- 2016Hurricane Matthew2 households applied for aid$1K aid approved
- 2015Severe Storms and Flooding477 households applied for aid$374K aid approved
- 2004Tropical Storm Frances1 households applied for aid$24K aid approved
Lexington County has had 17 natural disasters declared by the President since 1953, most often hurricanes and tropical storms, then winter storms. Not counted: the 2005 Hurricane Katrina evacuee emergency, which covered counties that took in evacuees.
Old photos of Gaston after a storm or flood belong in the town’s history. Add one, or share what you remember below.
Add to the Gaston archive →Gaston and its neighbors
Gaston has the lowest expected damage per building of the 1 graded towns here. Tap a town to see its hazards.
| Town | Hazard risk | Mostly (buildings) | Flood claims |
|---|---|---|---|
| Gaston | Bless damage than 60% | river and rain flooding | 0 |
| Swansea | — | 744 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 Gaston 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.
- 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.
- 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.
Know where neighbors sign up for alerts? Add it to the Handbook so everyone has it.
Questions about natural hazards in Gaston
Is Gaston at risk for natural disasters?
On FEMA’s National Risk Index, Gaston has lower expected damage per building than 60% of U.S. towns: B for hazard risk. Most of the expected damage is river and rain flooding (58%) and hurricanes (17%). This is FEMA’s model of an average year for today’s buildings, not a forecast.
Is Gaston 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 Lexington County, 67% of homes in mapped flood zones carry federal flood insurance, and 1.2% of all homes do.
How much is flood insurance in Gaston?
FEMA’s Community Rating System list shows no discount for Gaston’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 Gaston?
By FEMA money that reached Gaston, Hurricane Helene (2024): 1,134 households applied for aid, $1.5M approved.
Is Gaston at risk from river and rain flooding?
It is the largest share of the building damage FEMA expects here (58%), and Gaston’s rate for it is lower than 65% of U.S. census tracts.
Storm stories
Memories, warnings and help from neighbors in Gaston.
Sources: FEMA National Risk Index v1.20 (December 2025), census-tract table, combined by where Gaston’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.