Enter any address in Dallas County, Texas to see its FEMA flood zone
Flash flooding from thunderstorms is the dominant flood character in Dallas County. Between 1993 and 2023, NOAA Storm Events data recorded 284 flash flood events and 22 flood events. Recent examples include flash flooding on April 30, 2025, caused by slow-moving thunderstorms, and another event on May 6, 2025, associated with a surface front and thunderstorms.
National Flood Insurance Program (NFIP) claims data shows a mix of flood zones. Zone A experienced 1,599 claims with an average payout of $22,343 and an average water depth of 2.3 feet. Zone X had 659 claims, with an average payout of $23,454 and an average water depth of 5.3 feet, indicating that properties in Zone X can experience significant flooding. Homeowners in Zone A, Zone X, and those in areas with unknown flood zone designations should pay particular attention to flood risk.
Summary generated from NOAA storm narratives and NFIP claim data for this county. Not predictive.
117 NOAA storm reports from this county describe what happened, in the words of the meteorologists who were there.
Dallas County, Texas has recorded 306 flood-related events since 1996 according to NOAA's Storm Events Database, including 284 flash floods and 22 river or area floods. The county has received 28 federal disaster declarations, 4 of which involved flooding or coastal storms. Enter any address above to check its FEMA flood zone designation.
FEMA Disaster Declarations (1966–2024)
Source: OpenFEMA Disaster Declarations Summaries.
| Declaration | Type | Date |
|---|---|---|
| Severe Storms, Straight-line Winds, Tornadoes, And Flooding | Flood | Apr 26, 2024 |
| Severe Winter Storm | Severe Ice Storm | Feb 11, 2021 |
| Severe Winter Storms | Severe Ice Storm | Feb 11, 2021 |
| Tropical Storms Marco And Laura | Hurricane | Aug 23, 2020 |
| Covid-19 | Biological | Jan 20, 2020 |
| Covid-19 Pandemic | Biological | Jan 20, 2020 |
| Hurricane Harvey | Hurricane | Aug 23, 2017 |
| Severe Winter Storms, Tornadoes, Straight-line Winds, And Flooding | Severe Storm | Dec 26, 2015 |
| Severe Storms, Tornadoes, Straight-line Winds And Flooding | Severe Storm | May 4, 2015 |
| Hurricane Ike | Hurricane | Sep 7, 2008 |
NOAA Storm Events Database (1996–2025)
Source: NOAA National Weather Service Storm Events Database.
| Type | Date | Damage |
|---|---|---|
| Flash Flood | Aug 31, 2025 | 10.00K |
| Flash Flood | Aug 31, 2025 | 5.00K |
| Flash Flood | Jan 30, 2025 | 0.00K |
| Flash Flood | Jan 30, 2025 | 25.00K |
| Flash Flood | Jan 30, 2025 | 10.00K |
| Flash Flood | Jan 30, 2025 | 5.00K |
| Flash Flood | Aug 30, 2025 | 0.00K |
| Flash Flood | Apr 30, 2025 | 0.00K |
| Flash Flood | Apr 30, 2025 | 100.00K |
| Flash Flood | Jan 29, 2025 | 8.00K |
Flash Flood — Aug 31, 2025
A slow-moving summer frontal system, in conjunction with occasional disturbances embedded within the northwest flow aloft, generated multiple rounds of thunderstorms both preceding and during the Labor Day weekend. The predominant hazard observed was flash flooding, attributed to the substantial rainfall produced by some of these storms.
Flash Flood — Jan 30, 2025
A slow moving upper low generated multiple rounds of rain, some heavy, the night of January 29 into the morning of January 30 across North Texas. Much of the heavy rain and associated flooding occurred in and near the DFW Metroplex.
Flash Flood — Aug 30, 2025
A slow-moving summer frontal system, in conjunction with occasional disturbances embedded within the northwest flow aloft, generated multiple rounds of thunderstorms both preceding and during the Labor Day weekend. The predominant hazard observed was flash flooding, attributed to the substantial rainfall produced by some of these storms.
Flash Flood — Apr 30, 2025
A slow moving front and an upper trough generated scattered thunderstorms on April 29, and widespread showers and thunderstorms on April 30, across much of North and Central Texas. Some of these storms became severe with large hail and damaging winds, but the most impactful weather was flash flooding due to the slow movement of the front and the resulting ���training��� of thunderst...
Flash Flood — Jan 29, 2025
A slow moving upper low generated multiple rounds of rain, some heavy, the night of January 29 into the morning of January 30 across North Texas. Much of the heavy rain and associated flooding occurred in and near the DFW Metroplex.
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 Dallas County, Texas:
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 Dallas County, Texas 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.