105 flood insurance claims·$1.3M paid·2 federal flood & hurricane disasters
Share of the whole county outline, rivers and lakes included; parts FEMA hasn’t mapped count as zero.
Shaded areas are FEMA’s mapped flood hazard zones in and around Gaston County, North Carolina. Zoomed out they are simplified; at street level the map switches to FEMA’s exact layer. Tap anywhere to check that spot, or search an address above.
Flash flooding and standard riverine flooding from heavy rain events dominate the flood profile of Gaston County. Over the last 30 years, NOAA records show 16 flood events resulting in 1 death, 15 flash flood events, and 3 tropical storm events. Recent impacts include a complex frontal system that dropped 3 to 5 inches of rain in roughly 12 hours causing flash flooding on January 9, 2024, slow-moving storm clusters that triggered flash flooding in Gastonia on July 20, 2024, and heavy rainfall from Tropical Cyclone Helene on September 27, 2024.
NFIP insurance claims data demonstrates that flood risks extend beyond high-risk areas. Zone A accounts for 75 claims with an average payout of $23,305 and an average recorded water depth of 13 inches. Meanwhile, Zone X properties recorded 24 claims averaging $19,732 with an average water depth of 17 inches, and Zone X Unshaded recorded 3 claims averaging $2,976 with an average depth of 8 inches.
Homeowners, real estate agents, and journalists should pay the closest attention to properties located in Zone A and Zone X, as both zones experience significant claim activity and damaging water depths during major rain events.
Summary written from NOAA storm reports and NFIP claims for this county. Not a prediction.
5% of Gaston County’s flood insurance claims were on properties rated outside FEMA’s high-risk zones.
80 NFIP claims with a recorded rated flood zone, 1978 to date. The zone is the one FEMA used to rate that policy, which may not match today’s map. Source: OpenFEMA NFIP claims.
In flood insurance claims here that reported a flood depth, the average was 14 inches.
Drawn to scale against an 80-inch door. Even a few inches soaks flooring, the bottom of the drywall and anything plugged in near the floor.
Average of the depths reported on claims (zero and implausible values left out); FEMA’s record doesn’t say exactly where each depth was measured. Source: OpenFEMA NFIP claims.
The worst year was 2024, with 18 claims and $539,077 paid, the year of Hurricane Helene.
Bar height is scaled by square root so ordinary years stay visible next to the worst one. NFIP claims by year of loss. Source: OpenFEMA.
14 NOAA storm reports from Gaston County describe what happened, in the words of the forecasters who covered it. Read the North Carolina flood stories →
20 federal disaster declarations since 1974, 2 of them floods, coastal storms or hurricanes.
| Disaster | Began |
|---|---|
| Severe Winter Storm | Jan 21, 2026 |
| Hurricane Helene | Sep 25, 2024 |
| Tropical Storm Helene | Sep 25, 2024 |
| Hurricane Ian | Sep 28, 2022 |
| Hurricane Isaias | Jul 31, 2020 |
| Severe Storms, Tornadoes, And Flooding | Feb 6, 2020 |
| Hurricane Dorian | Sep 1, 2019 |
| Hurricane Florence | Sep 7, 2018 |
Weather and water disasters only; most recent first. Source: OpenFEMA Disaster Declarations.
34 since 1996: 15 flash floods and 16 river or area floods.
| Event | Date | Damage |
|---|---|---|
| Flash Flood | Sep 27, 2024 | $50,000 |
| Tropical Storm | Sep 27, 2024 | $1.5M |
| Flash Flood | Jul 20, 2024 | $5,000 |
| Flash Flood | Jan 9, 2024 | $10,000 |
| Tropical Storm | Sep 30, 2022 | — |
| Flood | Mar 26, 2021 | $100,000 |
| Flood | Nov 12, 2020 | $250,000 |
| Flood | Feb 7, 2020 | $500,000 |
— = no damage estimate in the record. Source: NOAA Storm Events Database.
Flash Flood · Sep 27, 2024. Tropical Cyclone Helene began organizing over the western Caribbean on the 23rd and 24th of September before rapidly intensifying as it moved north through the eastern Gulf of Mexico on the 25th and 26th. A plume of moisture extending from the intensifying storm interacted with a slow-moving cold front to produce a band of widespread heavy rain showers and embedded scattered thunderstorms over the southern Appalac…
Tropical Storm · Sep 27, 2024. Tropical Cyclone Helene began organizing over the western Caribbean on the 23rd and 24th of September before rapidly intensifying as it moved north through the eastern Gulf of Mexico on the 25th and 26th. A plume of moisture extending from the intensifying storm interacted with a slow-moving cold front to produce a band of widespread heavy rain showers and embedded scattered thunderstorms over the southern Appalac…
Flash Flood · Jul 20, 2024. Slow moving thunderstorms and storm clusters developed over the North Carolina Piedmont during the evening. A series of these cells moved over the city of Gastonia and produced very heavy rainfall in a short period of time, resulting in flash flooding.
Flash Flood · Jan 9, 2024. A major/complex frontal system brought widespread rain with embedded thunderstorms to western North Carolina, mainly during the afternoon of the 9th. Widespread rainfall amounts of 3 to 5 inches (with locally higher amounts) in around 12 hours resulted in numerous reports of flooding. Isolated severe thunderstorms also resulted in a number of damaging wind gusts reports over the Piedmont, along with an EF1 tornado…
National Weather Service narratives, lightly trimmed. Source: NOAA Storm Events Database.
Every colour on the map above is a place on this drawing: where the ground sits relative to the flood FEMA plans for.
If a building in Gaston County is in a high-risk zone (A or V) and its mortgage comes from a federally regulated or insured lender, or is federally backed, flood insurance is required.
Outside those zones it is optional, and often worth having: from 2014 to 2024 nearly one-third of NFIP claims came from outside the high-risk Special Flood Hazard Area. Since Risk Rating 2.0, NFIP premiums are set for each building, so the only reliable price is a quote: FloodSmart.gov or a local agent.