79 flood insurance claims·$4.4M paid·6 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 Polk 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 driven by severe weather events dominates the flood risk profile in Polk County, North Carolina. According to NOAA Storm Events Database records from the last 30 years, the county experienced 24 flash flood events resulting in 1 death, alongside 8 standard floods and 2 tropical storms. Recent severe impacts are documented from September 2024, when Tropical Cyclone Helene interacted with a slow-moving cold front to produce widespread heavy rain showers, embedded thunderstorms, and predecessor heavy rainfall across the southern Appalachians.
National Flood Insurance Program claims data demonstrate that flood risks extend across multiple zones. Zone A accounts for 40 claims with an average payout of $69,354 and an average recorded water depth of 14 inches. Meanwhile, Zone X records 35 claims with a higher average payout of $76,815 and an average recorded water depth of 23 inches. Additional claims are distributed across Zone UNKNOWN (2 claims, average payout of $1,258, average 0 inches depth), Zone V (1 claim, $0 payout, 0 inches depth), and Zone X_UNSHADED (1 claim, average payout of $2,709, average 0 inches depth).
Homeowners, real estate agents, and journalists should pay the closest attention to properties located within designated high-risk Special Flood Hazard Areas (Zone A) as well as properties in moderate-to-low risk areas (Zone X), where recorded water depths and claim payouts have historically reached significant averages.
Summary written from NOAA storm reports and NFIP claims for this county. Not a prediction.
2% of Polk County’s flood insurance claims were on properties rated outside FEMA’s high-risk zones.
42 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 17 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 31 claims and $3.4M 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.
17 NOAA storm reports from Polk County describe what happened, in the words of the forecasters who covered it. Read the North Carolina flood stories →
23 federal disaster declarations since 1977, 6 of them floods, coastal storms or hurricanes.
| Disaster | Began |
|---|---|
| Severe Winter Storm | Jan 21, 2026 |
| Black Cove Fire Complex | Mar 19, 2025 |
| 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 |
Weather and water disasters only; most recent first. Source: OpenFEMA Disaster Declarations.
34 since 1996: 24 flash floods and 8 river or area floods.
| Event | Date | Damage |
|---|---|---|
| Flood | Sep 27, 2024 | $10,000 |
| Flash Flood | Sep 27, 2024 | $15.0M · 1 killed |
| Tropical Storm | Sep 27, 2024 | $1.0M |
| Tropical Storm | Sep 27, 2024 | $4.0M |
| Flash Flood | Jan 9, 2024 | $2,000 |
| Flash Flood | Jun 20, 2023 | $20,000 |
| Flash Flood | Nov 11, 2022 | $500 |
| Flash Flood | Jul 24, 2021 | $1,000 |
— = no damage estimate in the record. Source: NOAA Storm Events Database.
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…
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 · 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 Polk 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.