Enter any address in Guadalupe County, Texas to see its FEMA flood zone
Flash flooding from thunderstorms is the dominant flood character in Guadalupe County. Over the last 30 years, NOAA Storm Events data shows 95 flash flood events, resulting in 8 fatalities. For example, excessive rainfall led to deadly flash flooding in July 2025, with some areas receiving 12-16 inches of rain in six hours. Another flash flood event occurred in June 2025 due to thunderstorms producing locally heavy rain.
National Flood Insurance Program (NFIP) claims data indicates that properties in Zone A have experienced the most claims, with 1444 claims averaging $44,870 and an average water depth of 6.1 feet. Properties in Zone X_SHADED also show significant claims, averaging $41,278 with an average water depth of 9.7 feet, and Zone X_UNSHADED claims averaged $41,991 with 4.9 feet of water. Residents in these zones, particularly those in Zone A and Zone X_SHADED, should pay close attention to flood risk.
Summary generated from NOAA storm narratives and NFIP claim data for this county. Not predictive.
26 NOAA storm reports from this county describe what happened, in the words of the meteorologists who were there.
Guadalupe County, Texas has recorded 103 flood-related events since 1996 according to NOAA's Storm Events Database, including 95 flash floods and 7 river or area floods. The county has received 23 federal disaster declarations, 6 of which involved flooding or coastal storms. Enter any address above to check its FEMA flood zone designation.
FEMA Disaster Declarations (1972–2025)
Source: OpenFEMA Disaster Declarations Summaries.
| Declaration | Type | Date |
|---|---|---|
| Severe Storms, Straight-line Winds, And Flooding | Flood | Jul 2, 2025 |
| 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 |
| Covid-19 | Biological | Jan 20, 2020 |
| Covid-19 Pandemic | Biological | Jan 20, 2020 |
| Hurricane Harvey | Hurricane | Aug 23, 2017 |
| Severe Storms, Tornadoes, Straight-line Winds, And Flooding | Severe Storm | Oct 22, 2015 |
| Severe Storms, Tornadoes, Straight-line Winds And Flooding | Severe Storm | May 4, 2015 |
| Tropical Storm Alex | Hurricane | Jun 27, 2010 |
NOAA Storm Events Database (1996–2025)
Source: NOAA National Weather Service Storm Events Database.
| Type | Date | Damage |
|---|---|---|
| Flash Flood | Jun 12, 2025 | 0.00K |
| Flash Flood | Jul 5, 2025 | 2.50M |
| Flash Flood | Oct 14, 2021 | 0.00K |
| Flash Flood | Mar 28, 2018 | 0.00K |
| Tropical Storm | Aug 26, 2017 | 50.00K |
| Flash Flood | Apr 11, 2017 | 0.00K |
| Flash Flood | Mar 10, 2017 | 0.00K (1 deaths) |
| Flash Flood | Aug 20, 2016 | 0.00K |
| Flash Flood | May 18, 2016 | 0.00K |
| Flash Flood | Jun 2, 2016 | 0.00K |
Flash Flood — Jun 12, 2025
A mid-level shortwave trough moved over Texas and combined with an abnormally moist airmass to generate thunderstorms. These storms were very efficient rain producers dropping locally heavy rain that led to flash flooding. There were also a few severe thunderstorms.
Flash Flood — Jul 5, 2025
Precipitable water values over South-Central Texas remained near record levels, and a mid-level anticyclonic circulation continued over Central Texas providing lift to generate thunderstorms. These storms were efficient rain making storms leading to another night of excessive rainfall. Parts of Burnet and Travis Counties received 12-16 inches of rain in approximately six hours that led to deadl...
Flash Flood — Oct 14, 2021
A complicated weather pattern developed over South Central Texas when a dryline and cold front moved out of West Texas as an upper level low moved into the Central Plains. At the same time the remnants of Pacific Hurricane Pamela moved across northern Mexico. The airmass over the region was warm and moist with near record precipitable water values. This set up led to an excessive rain episode w...
Flash Flood — Mar 28, 2018
A cold front moved into a warm, very moist airmass over South Central Texas and generated thunderstorms. Some of these storms produced large hail and heavy rain. The heavy rain led to localized flash flooding. Rainfall totals in worst hit counties ranged from 4.09 to 5.72 inches.
Tropical Storm — Aug 26, 2017
Hurricane Harvey moved onshore as a Category 4 hurricane over San Jose Island east of Rockport during the late evening of August 25th. Harvey moved inland entering southern DeWitt County during the morning of August 26th as a Category 1 hurricane. It continued to weaken as it moved farther inland eventually reaching south central Gonzales County as a tropical storm during the late evening of A...
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 Guadalupe 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 Guadalupe 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.