Enter any address in Barnwell County, South Carolina to see its FEMA flood zone
4 NOAA storm reports from this county describe what happened, in the words of the meteorologists who were there.
Barnwell County, South Carolina has recorded 13 flood-related events since 1996 according to NOAA's Storm Events Database, including 6 flash floods and 3 river or area floods. The county has received 27 federal disaster declarations. Enter any address above to check its FEMA flood zone designation.
FEMA Disaster Declarations (1977–2026)
Source: OpenFEMA Disaster Declarations Summaries.
| Declaration | Type | Date |
|---|---|---|
| Severe Winter Storm | Winter Storm | Jan 21, 2026 |
| Hurricane Helene | Tropical Storm | Sep 25, 2024 |
| Hurricane Debby | Tropical Storm | Aug 4, 2024 |
| Tropical Storm Debby | Tropical Storm | Aug 4, 2024 |
| Hurricane Idalia | Hurricane | Aug 29, 2023 |
| Hurricane Ian | Hurricane | Sep 25, 2022 |
| Severe Storms, Tornadoes, And Straight-line Winds | Severe Storm | Apr 12, 2020 |
| Severe Storms, Tornadoes, Straight-line Winds, And Flooding | Severe Storm | Feb 6, 2020 |
| Covid-19 | Biological | Jan 20, 2020 |
| Covid-19 Pandemic | Biological | Jan 20, 2020 |
NOAA Storm Events Database (1996–2025)
Source: NOAA National Weather Service Storm Events Database.
| Type | Date | Damage |
|---|---|---|
| Flash Flood | Apr 24, 2025 | 0.00K |
| Tropical Storm | Sep 27, 2024 | 2.50M |
| Tropical Storm | Aug 30, 2023 | — |
| Tropical Storm | Sep 30, 2022 | — |
| Tropical Storm | Oct 10, 2018 | — |
| Flood | Jul 8, 2017 | 0.10K |
| Flash Flood | Jul 11, 2013 | 3.00K |
| Flood | Jun 10, 2013 | 1.00K |
| Flash Flood | May 25, 2009 | 4.00K |
| Flood | Jul 1, 2007 | 0.00K |
Flash Flood — Apr 24, 2025
A slow moving front and persistent deep moisture across the southern Midlands helped produce isolated flash flooding from scattered thunderstorms, primarily in Barnwell County.
Tropical Storm — Sep 27, 2024
Tropical Storm Helene formed in the NW Caribbean Sea on September 24. Helene moved northward into the Gulf of Mexico where it strengthened into a hurricane on September 25. Helene made landfall as a major hurricane in the Big Bend area of Florida the night of September 26 before quickly moving inland into east central Georgia by early morning on September 27. Helene weakened to a strong tropica...
Tropical Storm — Aug 30, 2023
Lifting up out of the Big Bend of Florida, Hurricane Idalia weakened to a Tropical Storm as it moved out of southeastern Georgia. The tropical system then moved northeast along the coastal plain of South Carolina. This system produced scattered tree damage, some flooding and one confirmed tornado.
Tropical Storm — Sep 30, 2022
Ian first formed as Tropical Depression Nine in the Caribbean Sea on September 23,|2022. It moved west and northwest into the Western Caribbean and strengthened|into a hurricane. The cyclone turned to the north and crossed over the western tip|of Cuba on September 27th.||Ian strengthened into a major hurricane and moved NNE across the SE Gulf of Mexico,|and intensified into a high end categor...
Tropical Storm — Oct 10, 2018
An area of disturbed weather over the NW Caribbean Sea organized and became Tropical Depression #14 early on Sunday October 7th. The cyclone continued to organize while moving very slowly north, just east of the Yucatan peninsula, becoming Tropical Storm Michael on Sunday afternoon October 7th. The cyclone further developed while moving slowly north, reaching Hurricane status Monday morning...
Source: NOAA National Weather Service Storm Events Database.
Source: OpenFEMA NFIP Individual Claims (2.25M records analyzed).
FEMA assigns flood zone designations to areas in Barnwell County, South Carolina:
AE High Risk — 1% annual chance of flooding. Insurance required.
VE Very High Risk — Coastal flooding with wave action.
X (Shaded) Moderate Risk — 500-year floodplain.
X Low Risk — Outside major floodplains.
Properties in Barnwell County, South Carolina that are in FEMA-designated Special Flood Hazard Areas (zones A and V) with federally backed mortgages are required to carry flood insurance.
Even outside high-risk zones, flood insurance is recommended. From 2014 to 2024, nearly one-third of NFIP claims came from outside the high-risk Special Flood Hazard Area.
Visit FloodSmart.gov to find an agent and get a quote.