Gonzales County, Texas
Natural disaster risk, federal disaster history and flood insurance facts.
Gonzales County, Texas has a moderate overall risk from natural hazards in FEMA's National Risk Index. Its risk score is higher than 86% of US counties. It ranks 33rd of 254 counties in Texas. The costliest hazards here are inland flooding, hurricanes and tornadoes. FEMA estimates about $37 million a year in expected losses, or roughly $1,879 per resident. Since 1967 it has been included in 20 federal disaster or emergency declarations for natural events (14 major disasters). The most recent was in May 2024 (severe storms, straight-line winds, tornadoes and flooding). About 1 in 59 homes here carry federal flood insurance (134 policies). Since 1978, federal flood insurance has paid about $6.4 million on 219 claims here, including $3.4 million for floods in 1998.
FEMA National Risk Index December 2025; OpenFEMA declarations to Nov 6, 2026; NFIP records. Updated November 6, 2026.
Top risks in Gonzales County
- Check the FEMA flood map for your address, and ask the seller or landlord about past flooding.
- Price a flood policy now. Most new federal policies take 30 days to start.
- Know your evacuation zone and route before June 1.
- Ask about roof age, shutters and the separate wind or hurricane deductible on your home policy.
- Pick a shelter spot: a basement, or an inside room on the lowest floor with no windows.
- Turn on emergency alerts on your phone and keep a weather radio.
All 18 hazards
What the ratings mean ›| Hazard | Rating | Score | Expected loss a year | |
|---|---|---|---|---|
| Inland flooding | 90.4 | $26M | ||
| Hurricane | 88.7 | $4M | ||
| Tornado | 72.5 | $2M | ||
| Cold wave | 71.9 | $1M | ||
| Hail | 91.5 | $1M | ||
| Drought | 89.2 | $1M | ||
| Strong wind | 74.7 | $707K | ||
| Heat wave | 63.8 | $443K | ||
| Lightning | 69.1 | $308K | ||
| Wildfire | 73.1 | $141K | ||
| Winter weather | 45.9 | $36K | ||
| Earthquake | 20.9 | $20K | ||
| Ice storm | 25.2 | $15K | ||
| Landslide | 29.7 | $192 |
Scores are percentiles: a score of 90 means higher risk than about 90% of US counties for that hazard. Hazards FEMA does not rate here are left out. Social vulnerability is very high and community resilience is very low in FEMA's measures.
Federal disaster history
Recent disasters nationwide ›Declarations by decade
Federal declarations for natural events that included Gonzales County. 2020s bar runs to November 2026.
By type
Most recent
Show all 20
Texas also had 106 statewide declarations that did not name single counties.
Storm history since 1955
Tornado risk by county ›The National Weather Service has logged 223 storm reports in Gonzales County since 1955, with 0 deaths and 540 injuries and about $6.6 million in reported damage. The strongest on record here was an F2 tornado on October 11, 1973.
Strongest tornadoes
| Date | Strength | Near | Hurt / killed |
|---|---|---|---|
| Oct 11, 1973 | F2 | – | 0 / 0 |
| May 18, 1965 | F2 | – | 0 / 0 |
| Feb 19, 1991 | F2 | – | 0 / 0 |
| May 6, 1982 | F1 | – | 0 / 0 |
| Mar 20, 1955 | F1 | – | 0 / 0 |
Most damaging storms
| Date | Type | Near | Damage |
|---|---|---|---|
| May 6, 1982 | Tornado | – | $3M |
| Oct 18, 1998 | Flash Flood | Countywide | $700K |
| Oct 17, 1998 | Flash Flood | Countywide | $700K |
| May 13, 1994 | Thunderstorm Wind | Gonzales | $550K |
| Sep 20, 1967 | Tornado | – | $250K |
| Jun 6, 1984 | Tornado | – | $250K |
Source: NOAA Storm Events Database, county-based reports through May 26, 2026. Tornado records start in 1950, hail and wind in 1955, and floods and other storm types in 1996, so older decades undercount. Damage is in dollars of the year it happened and is often an estimate. Winter storms, heat and hurricanes are logged by forecast zone, not county, so they are not counted here.
Hurricanes and tropical storms
Hurricane risk by county ›Since 1854, 8 hurricanes and 15 tropical storms have passed within 65 miles of the center of Gonzales County, 10 of them since 1950. The strongest was an unnamed hurricane in 1886, with top winds near 125 mph about 63 miles away.
Strongest storms nearby
| Date | Storm | Strength | Closest |
|---|---|---|---|
| Aug 20, 1886 | Unnamed | Category 3, 125 mph | 63 mi |
| Sep 12, 1961 | Carla | Category 2, 110 mph | 61 mi |
| Aug 30, 1942 | Unnamed | Category 2, 105 mph | 65 mi |
| Sep 17, 1875 | Unnamed | Category 1, 85 mph | 56 mi |
| Aug 26, 2017 | Harvey | Category 1, 85 mph | 60 mi |
| Jun 28, 1929 | Unnamed | Category 1, 80 mph | 60 mi |
Most recent storms
| Date | Storm | Strength | Closest |
|---|---|---|---|
| Sep 22, 2020 | Beta | Tropical storm, 40 mph | 65 mi |
| Aug 26, 2017 | Harvey | Category 1, 85 mph | 60 mi |
| Jun 16, 2015 | Bill | Tropical storm, 50 mph | 61 mi |
| Jul 15, 2003 | Claudette | Category 1, 75 mph | 65 mi |
| Sep 11, 1998 | Frances | Tropical storm, 40 mph | 65 mi |
| Sep 6, 1980 | Danielle | Tropical storm, 40 mph | 60 mi |
Source: NOAA National Hurricane Center best-track records (HURDAT2), 1851 to 2025 for the Atlantic and 1949 to 2025 for the eastern Pacific. A storm counts if its track passed within 65 miles of the county's center while it was a tropical storm or hurricane. Strength is the storm's top sustained wind at that point, not the wind measured in the county. Older storms over the open sea were sometimes missed.
Flood insurance in Gonzales County
Check your address flood zone ›National Flood Insurance Program (NFIP) records only; private flood policies are not included. Home counts as of Aug 3, 2026. Since 2021 NFIP prices each home separately under Risk Rating 2.0, so your price depends on the building, not the county. Ask an agent for a quote.
Homes in Gonzales County
Older homes and mobile homes usually suffer more damage in storms, floods and earthquakes, and can cost more to insure. If you are buying, ask about roof age, foundation bolting and any retrofits. Source: US Census Bureau, American Community Survey 2020 to 2024 5-year estimates; 9,020 housing units.
Compare in Texas
All 254 ›| Largest counties | Overall risk | Top hazard |
|---|---|---|
| Harris County | Inland flooding | |
| Dallas County | Inland flooding | |
| Tarrant County | Inland flooding | |
| Bexar County | Inland flooding | |
| Travis County | Inland flooding | |
| Collin County | Tornado | |
| Denton County | Tornado | |
| Hidalgo County | Hurricane |
Neighboring counties
| County | Overall risk | Declarations |
|---|---|---|
| Guadalupe County | 21 | |
| Wilson County | 16 | |
| Caldwell County | 22 | |
| Fayette County | 22 | |
| Lavaca County | 17 | |
| DeWitt County | 20 | |
| Karnes County | 14 |
Common questions about Gonzales County
What is the biggest natural hazard in Gonzales County?
Inland flooding has the highest expected yearly losses in Gonzales County, about $25.8 million a year in FEMA's estimate. Hurricane is second at $3.9 million.
How many federal disasters has Gonzales County had?
Gonzales County has been included in 20 federal disaster or emergency declarations for natural events since 1967, including 14 major disasters. The most recent was Severe Storms, Straight-Line Winds, Tornadoes, and Flooding in May 2024.
Is Gonzales County a high-risk place to live?
Its overall rating is Relatively Moderate, 33rd highest of 254 in Texas. A county rating covers the whole area. Risk at one address can be much higher or lower, so check the FEMA flood map and ask about the home's history.
Do I need flood insurance in Gonzales County?
Standard home insurance does not cover flooding. About 1 in 59 homes in Gonzales County has federal flood insurance. Lenders require it in mapped high-risk zones, but many flood claims come from outside those zones.
How many tornadoes has Gonzales County had?
NOAA records list 21 tornadoes in Gonzales County since 1950. The strongest was an F2 tornado on October 11, 1973. The weather service has also logged 53 hail reports and 93 floods here.
How many hurricanes have hit Gonzales County?
NOAA's hurricane records show 8 hurricanes and 15 tropical storms passing within 65 miles of the center of Gonzales County, including 1 major hurricane (Category 3 or stronger). The strongest was an unnamed hurricane in 1886, with winds near 125 mph.
Sources: FEMA National Risk Index (December 2025), OpenFEMA Disaster Declarations Summaries, and NFIP policy and claims data. Hazard Compass is independent and not affiliated with FEMA. These figures describe the whole county, not a single property, and are not insurance or safety advice. Report a problem.