FEMA flood zones · North Carolina

Nash County, North Carolina Flood Zone Map

735 flood insurance claims·$33.7M paid·5 federal flood & hurricane disasters

9% of Nash County’s area is in FEMA’s high-risk flood zones, and another 1% in shaded X (mostly the 0.2% floodplain and areas behind levees).

Share of the whole county outline, rivers and lakes included; parts FEMA hasn’t mapped count as zero.

Coastal high risk (V, VE)FloodwayHigh risk (A, AE)Moderate (X, 500-year)Minimal (X)Undetermined (D)

Shaded areas are FEMA’s mapped flood hazard zones in and around Nash 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.

How Nash County floods

Flash flooding from summer thunderstorms dominates the flood risk profile in Nash County, supported by 35 recorded flash flood events, 6 tropical storms, 6 hurricanes, and 3 general flood events over the last 30 years. Recent impacts include a stalled cold front that caused flash flooding on June 16, 2025, and upper-level disturbances along a wedge front that produced flash flooding resulting in two fatalities on August 6, 2025. Tropical systems also pose a recognized hazard, as demonstrated by heavy rainfall and wind gusts from Tropical Storm Ian on September 30, 2022.

National Flood Insurance Program records show claims across multiple zones, indicating risk extends beyond high-risk areas. Zone A accounts for the highest claim volume with 575 claims averaging a $53,398 payout and an average recorded water depth of 5 inches. Properties in moderate-to-low risk zones also experience flooding, including 68 claims in Zone X averaging a $27,666 payout with an average water depth of 3 inches, 47 claims in Zone X_SHADED averaging an $81,428 payout with an average water depth of 8 inches, and 28 claims in Zone X_UNSHADED averaging a $67,415 payout with an average water depth of 16 inches. Homeowners, real estate agents, and journalists should pay the closest attention to properties in Zone A and shaded or unshaded Zone X areas where historical claims and standing water depths indicate substantial flood exposure.

Summary written from NOAA storm reports and NFIP claims for this county. Not a prediction.

Where the flood claims came from

11% of Nash County’s flood insurance claims were on properties rated outside FEMA’s high-risk zones.

655 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.

How deep the water got

outlet80″ door12″24″36″48″60″72″84″

In flood insurance claims here that reported a flood depth, the average was 6 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.

Flood claims, year by year

The worst year was 1999, with 370 claims and $25.9M paid, the year of Hurricane Floyd and Hurricane Floyd Major Disaster Declarations.

1978: 7 claims1979: 4 claims1980: 2 claims1983: 4 claims1984: 4 claims1985: 1 claims1987: 8 claims1989: 2 claims1993: 9 claims1995: 2 claims1996: 35 claims1998: 30 claims1999: 370 claims2000: 3 claims2001: 1 claims2002: 5 claims2003: 3 claims2006: 24 claims2008: 1 claims2010: 1 claims2011: 9 claims2013: 1 claims2015: 3 claims2016: 137 claims2017: 7 claims2018: 7 claims2020: 43 claims2023: 2 claims2024: 8 claims2025: 2 claims19801990200020102020

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.

In their words

19 NOAA storm reports from Nash County describe what happened, in the words of the forecasters who covered it. Read the North Carolina flood stories →

Federal disasters

28 federal disaster declarations since 1968, 5 of them floods, coastal storms or hurricanes.

DisasterBegan
Severe Winter StormJan 21, 2026
Hurricane HeleneSep 25, 2024
Tropical Storm HeleneSep 25, 2024
Tropical Storm DebbyAug 5, 2024
Hurricane IanSep 28, 2022
Hurricane IsaiasJul 31, 2020
Hurricane DorianSep 1, 2019
Hurricane FlorenceSep 7, 2018

Weather and water disasters only; most recent first. Source: OpenFEMA Disaster Declarations.

Recorded flood events

50 since 1996: 35 flash floods and 3 river or area floods.

EventDateDamage
Flash FloodJun 16, 2025$2,000
Flash FloodAug 6, 2025— · 2 killed
Flash FloodAug 6, 2025$100,000
Tropical StormSep 30, 2022$750,000
FloodJun 17, 2020—
Flash FloodJun 17, 2020—
Tropical StormAug 4, 2020$1.0M
Tropical StormSep 6, 2019$500,000

— = no damage estimate in the record. Source: NOAA Storm Events Database.

From the storm reports

Flash Flood · Jun 16, 2025. A southward moving cold front out of Virginia stalled out near the North Carolina border. Storms from the late evening on the 15th persisted into the early morning hours of the 16th along and south of the front, producing isolated flash flooding. The stalled boundary then fueled additional numerous showers and storms in the afternoon and evening hours of the 16th along small scale boundaries. Several downed trees…

Flash Flood · Aug 6, 2025. Within cool northeasterly surface flow, several upper-level disturbances tracked across central North Carolina from a persistent weak trough of low pressure over the Ohio Valley region. Copious amounts of moisture remained from the 5th of August. A wedge front was also in place along Interstate 95. Several reports of flash flooding were reported over the eastern Piedmont and northern Coastal Plain, including two f…

Tropical Storm · Sep 30, 2022. Hurricane Ian made landfall along the South Carolina coast near Georgetown during the early afternoon hours of September 30, 2022. Widespread wind gusts over tropical storm force and heavy rainfall occurred across much of central North Carolina through the afternoon and evening hours. There were numerous reports of wind damage and power outages as a result of the storm.

Flood · Jun 17, 2020. A slow moving upper-level low combined with a surge of warmer and more moist air that moved over a cooler air mass near the surface produced multiple rounds of rain, showers, and thunderstorms across the Coastal Plain and the northeast Piedmont of North Carolina during the morning hours. Widespread rain fell across the area during the previous day or two saturating the soil and raising stream and creek levels. A n…

National Weather Service narratives, lightly trimmed. Source: NOAA Storm Events Database.

The zones you’ll see on the map

Every colour on the map above is a place on this drawing: where the ground sits relative to the flood FEMA plans for.

Cross-section of a river floodplainDiagram: a river valley. The floodway is the channel and the land beside it; the 1%-annual-chance flood surface (the base flood elevation) covers the valley floor as zone A or AE; a narrow band higher up is shaded X, the 0.2% floodplain; higher ground is X.0.2% CHANCE A YEAR (500-YEAR)BASE FLOOD ELEVATION · 1% A YEARXAEFloodwayAEX
  1. A / AE Inside the 1%-a-year floodplain: about a 26% chance of flooding over a 30-year mortgage. AE has a mapped base flood elevation; plain A does not.
  2. Floodway The channel and the land beside it that has to be kept clear enough to carry the flood. Building here is tightly limited.
  3. X shaded The 0.2% (500-year) floodplain, plus some levee-protected and very shallow flood areas.
  4. X Outside both lines. No federal requirement to insure, which is not the same as no risk.

Every flood zone code explained →

Flood insurance in Nash County

If a building in Nash 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.