Enter any address in Simpson County, Mississippi to see its FEMA flood zone
Flash flooding from heavy rainfall events is the most frequent type of flooding in Simpson County, MS. Over the past 30 years, the NOAA Storm Events Database has recorded 37 flash flood events, alongside 8 general flood events, 3 tropical storms, and 2 hurricanes. Recent examples include flash flooding in January 2024 due to training showers and thunderstorms, and in May 2024 from a band of heavy rain.
National Flood Insurance Program (NFIP) claims data indicates that properties in Zone A have experienced the highest number of claims, with an average payout of $9,621 and an average water depth of 3.1 feet. While Zone UNKNOWN and Zone X_UNSHADED also show claim activity, the payouts and water depths are generally lower. Homeowners in Zone A, and those in areas with unknown flood risk, should pay particular attention to flood preparedness.
Summary generated from NOAA storm narratives and NFIP claim data for this county. Not predictive.
24 NOAA storm reports from this county describe what happened, in the words of the meteorologists who were there.
Simpson County, Mississippi has recorded 50 flood-related events since 1996 according to NOAA's Storm Events Database, including 37 flash floods and 8 river or area floods. The county has received 30 federal disaster declarations, 2 of which involved flooding or coastal storms. Enter any address above to check its FEMA flood zone designation.
FEMA Disaster Declarations (1969–2026)
Source: OpenFEMA Disaster Declarations Summaries.
| Declaration | Type | Date |
|---|---|---|
| Severe Winter Storm | Winter Storm | Jan 23, 2026 |
| Severe Storms, Straight-line Winds, And Tornadoes. | Severe Storm | Jun 14, 2023 |
| Hurricane Ida | Hurricane | Aug 28, 2021 |
| Severe Winter Storms | Severe Ice Storm | Feb 11, 2021 |
| Hurricane Delta | Hurricane | Oct 7, 2020 |
| Severe Storms, Tornadoes, Straight-line Winds, And Flooding | Severe Storm | Apr 22, 2020 |
| Covid-19 | Biological | Jan 20, 2020 |
| Covid-19 Pandemic | Biological | Jan 20, 2020 |
| Severe Storm, Straight-line Winds, And Flooding | Severe Storm | Oct 26, 2019 |
| Severe Storms, Tornadoes, And Flooding | Severe Storm | Apr 28, 2014 |
NOAA Storm Events Database (1996–2025)
Source: NOAA National Weather Service Storm Events Database.
| Type | Date | Damage |
|---|---|---|
| Flash Flood | Jan 24, 2024 | 1.00K |
| Flash Flood | Jan 24, 2024 | 5.00K |
| Flash Flood | May 17, 2024 | 5.00K |
| Flash Flood | May 17, 2024 | 1.00K |
| Flash Flood | Sep 12, 2024 | 3.00K |
| Flood | Aug 25, 2022 | 5.00K |
| Flash Flood | Aug 24, 2022 | 5.00K |
| Flash Flood | Aug 30, 2021 | 7.00K |
| Tropical Storm | Aug 30, 2021 | 50.00K |
| Flash Flood | Mar 25, 2021 | 1.00K |
Flash Flood — Jan 24, 2024
With an upper-level trough of low pressure situated over Central Plains and a very moist air mass extending north through the Mississippi River Valley, training showers and thunderstorms produced heavy rain and flooding over parts of Mississippi.
Flash Flood — May 17, 2024
A band of heavy rain developed during the morning of May 17th and caused flash flooding across portions of Mississippi.
Flash Flood — Sep 12, 2024
Tropical Storm Francine made landfall in southern Louisiana on the evening of September 11th, 2024. The weakening storm produced strong wind damage as it moved across central Mississippi the morning of September 12th, 2024.
Flood — Aug 25, 2022
A low pressure system spinning over northern Louisiana and southern Arkansas brought several rounds of showers and thunderstorms producing heavy rain to Mississippi August 24th through 25th. This resulted in widespread flooding of roads, homes, and businesses around the state.
Flash Flood — Aug 24, 2022
A low pressure system spinning over northern Louisiana and southern Arkansas brought several rounds of showers and thunderstorms producing heavy rain to Mississippi August 24th through 25th. This resulted in widespread flooding of roads, homes, and businesses around the state.
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 Simpson County, Mississippi:
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 Simpson County, Mississippi 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.