Enter any address in Hidalgo County, Texas to see its FEMA flood zone
Flash flooding from thunderstorms is the most frequent flood event in Hidalgo County, TX, accounting for 69 events over the last 30 years, followed by general flooding (46 events) and tropical storms (4 events). Recent events include widespread flash and areal flooding in March 2025, with rainfall totals ranging from 8 to nearly 19 inches in some areas. Another event in August 2025 saw over 2 inches of rain fall in less than two hours, impacting southeast Hidalgo County.
National Flood Insurance Program (NFIP) data shows that properties in Zone X (1089 claims) and Zone X_Shaded (967 claims) have experienced the most flood insurance claims in the county. These zones, along with Zone A (786 claims), represent areas where residents have filed claims for flood damage. Homeowners in these designated flood zones, particularly those in Zone A where average payouts and water depths are lower, should pay close attention to flood risk information.
Summary generated from NOAA storm narratives and NFIP claim data for this county. Not predictive.
76 NOAA storm reports from this county describe what happened, in the words of the meteorologists who were there.
Hidalgo County, Texas has recorded 119 flood-related events since 1996 according to NOAA's Storm Events Database, including 69 flash floods and 46 river or area floods. The county has received 32 federal disaster declarations, 5 of which involved flooding or coastal storms. Enter any address above to check its FEMA flood zone designation.
FEMA Disaster Declarations (1967–2025)
Source: OpenFEMA Disaster Declarations Summaries.
| Declaration | Type | Date |
|---|---|---|
| Severe Storms And Flooding | Flood | Mar 26, 2025 |
| Hurricane Beryl | Hurricane | Jul 5, 2024 |
| Severe Winter Storm | Severe Ice Storm | Feb 11, 2021 |
| Severe Winter Storms | Severe Ice Storm | Feb 11, 2021 |
| Hurricane Hanna | Hurricane | Jul 25, 2020 |
| Covid-19 | Biological | Jan 20, 2020 |
| Covid-19 Pandemic | Biological | Jan 20, 2020 |
| Severe Storms And Flooding | Flood | Jun 24, 2019 |
| Severe Storms And Flooding | Flood | Jun 19, 2018 |
| Severe Storms And Flooding | Flood | May 22, 2016 |
NOAA Storm Events Database (1996–2025)
Source: NOAA National Weather Service Storm Events Database.
| Type | Date | Damage |
|---|---|---|
| Flood | Mar 28, 2025 | 0.00K |
| Flood | Mar 27, 2025 | 0.00K |
| Flash Flood | Mar 27, 2025 | 0.00K (3 deaths) |
| Flash Flood | Mar 27, 2025 | 52.00M |
| Flood | Aug 15, 2025 | 0.00K |
| Flood | Jun 12, 2025 | 0.00K |
| Flash Flood | Sep 15, 2024 | 0.00K |
| Flash Flood | May 19, 2021 | 0.00K |
| Flash Flood | May 19, 2021 | 100.00K |
| Flash Flood | Jul 6, 2021 | 75.00K |
Flood — Mar 28, 2025
Several rounds of showers and thunderstorms pummeled the Lower Rio Grande Valley, especially during the afternoon and overnight hours of March 27th into early on March 28th, resulting in historic seasonal rainfall and widespread flash and areal flooding across the RGV. Total rainfall ranged from 8 to nearly 19 inches based on trusted observations, with 10 inches or more falling across some of ...
Flood — Mar 27, 2025
Several rounds of showers and thunderstorms pummeled the Lower Rio Grande Valley, especially during the afternoon and overnight hours of March 27th into early on March 28th, resulting in historic seasonal rainfall and widespread flash and areal flooding across the RGV. Total rainfall ranged from 8 to nearly 19 inches based on trusted observations, with 10 inches or more falling across some of ...
Flash Flood — Mar 27, 2025
Several rounds of showers and thunderstorms pummeled the Lower Rio Grande Valley, especially during the afternoon and overnight hours of March 27th into early on March 28th, resulting in historic seasonal rainfall and widespread flash and areal flooding across the RGV. Total rainfall ranged from 8 to nearly 19 inches based on trusted observations, with 10 inches or more falling across some of ...
Flood — Aug 15, 2025
A tropical disturbance which originated near Honduras on August 13th pushed through the southwest Gulf of Mexico and ultimately moved onshore just south of the Mouth of the Rio Grande, crossing southwest Cameron and southeast Hidalgo County before becoming more diffuse, on August 15th. ||Widespread showers and a few thunderstorms accompanied the disturbance (known as AL-98) across eastern Hidal...
Flood — Jun 12, 2025
A line of strong to severe thunderstorms developed over Corpus Christi area from a weak shortwave trough and shifted southward into Deep South Texas. As the storms ran into very unstable air across the Rio Grande Valley, they formed into a cluster and become locally severe. Several microbursts and some hail (unknown size) were generated from the cluster, including a several-mile track between ...
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 Hidalgo 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 Hidalgo 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.