San Augustine County, TX
FEMA National Risk Index scores, disaster declarations & hazard data
San Augustine County has experienced 26 federally declared disasters since 1989, most recently Severe Storms, Straight-Line Winds, Tornadoes, And Flooding in 2024. Its overall natural hazard risk is rated Very Low — among the lowest-risk counties in the country.
San Augustine County's highest-rated hazards are strong wind, hurricane, and heat wave, with its top risk rated "Relatively Moderate" by FEMA's National Risk Index. Recorded storm events have increased 78% over the past five years compared to the prior five-year period. Community vulnerability is elevated (99th percentile nationally), suggesting residents may face greater difficulty recovering from major disasters.
Past disasters & FEMA designations
A federal disaster declaration officially designates a county for FEMA disaster assistance. San Augustine County has been designated in 26 declarations since 1989, covering 8 disaster types including hurricane (8), fire (5), flood (3).
| Year | Type | Event name |
|---|---|---|
| 2024 | Flood | Severe Storms, Straight-Line Winds, Tornadoes, And Flooding |
| 2024 | Hurricane | Hurricane Beryl |
| 2021 | Severe Ice Storm | Severe Winter Storms |
| 2021 | Severe Ice Storm | Severe Winter Storm |
| 2020 | Hurricane | Tropical Storms Marco And Laura |
| 2020 | Biological | Covid-19 Pandemic |
| 2020 | Biological | Covid-19 |
| 2017 | Hurricane | Hurricane Harvey |
| 2016 | Flood | Severe Storms, Tornadoes, And Flooding |
| 2015 | Severe Storm | Severe Storms, Tornadoes, Straight-Line Winds And Flooding |
Showing the 10 most recent of 26 total declarations since 1989.
Source: FEMA OpenFEMA Disaster Declarations Summaries. A single disaster can produce more than one record per county. Data current through September 2026.
Risk by hazard type
| Hazard | Risk rating | Risk score | Recorded events | Deaths | Prop. damage |
|---|---|---|---|---|---|
| Wildfire | Very Low | 56.4 | 0 | 0 | — |
| Inland Flooding | Very Low | 17 | 11 | 0 | — |
| Coastal Flooding | Not Applicable | — | 0 | 0 | — |
| Earthquake | Very Low | 24.1 | 2 | — | — |
| Heat Wave | Relatively Low | 56.5 | 77 | 0 | — |
| Tornado | Relatively Low | 44.8 | 3 | 0 | $5.2M |
| Hurricane | Relatively Low | 73.5 | 0 | 0 | — |
| Hail | Very Low | 12 | 12 | 0 | — |
| Strong Wind | Relatively Moderate | 82 | 0 | 0 | — |
| Winter Weather | Very Low | 24.5 | 0 | 0 | — |
| Ice Storm | Relatively Low | 54.1 | — | — | — |
| Cold Wave | Relatively Low | 28.3 | — | — | — |
| Lightning | Relatively Low | 46.2 | 0 | 0 | — |
| Drought | No Rating | 0 | 0 | 0 | — |
| Landslide | Very Low | 30.2 | 0 | 0 | — |
| Avalanche | Not Applicable | — | — | — | — |
| Tsunami | Not Applicable | — | — | — | — |
| Volcanic Activity | Not Applicable | — | — | — | — |
Scores are 0–100 percentiles relative to all US counties — higher means more exposed, not that a disaster is likely this year. Event counts: NOAA Storm Events 2016–2026; earthquake counts from USGS ComCat (M3.0+, 1996–2026). See the methodology page for details.
Community vulnerability
San Augustine County ranks in the 99th percentile (High) for community vulnerability — a measure of how hard disaster impacts tend to hit residents. Higher vulnerability means more displacement, worse health outcomes, and slower recovery after a disaster.
| SVI theme | Percentile | Vulnerability level |
|---|---|---|
| Overall | 99th | High |
| Socioeconomic status | 98th | High |
| Household characteristics | 94th | High |
| Racial & ethnic minority status | 68th | Moderate |
| Housing type & transportation | 97th | High |
Source: CDC/ATSDR Social Vulnerability Index 2022. Percentiles compare counties nationally — higher means more vulnerable relative to other counties. See CDC SVI for full methodology.
Future risk outlook
| Wildfire metric | National percentile | Level |
|---|---|---|
| Burn probability | 65th | Relatively High |
| Risk to homes | 64th | Relatively High |
| Buildings in direct exposure zone | 87.9% | — |
NOAA tracked 100 weather events in this county over 2016–2025: 36 in 2016–20 vs 64 in 2021–25 (+78% — frequency increasing).
Wildfire: USDA Forest Service Wildfire Risk to Communities (RDS-2020-0016-2) — modeled values, not annual forecasts. See wildfirerisk.org. Inland flood and heat projections pending data availability; coastal sea-level projections are available for select coastal counties below — see the data page.
Nearby counties
Frequently asked questions
What natural hazards pose the greatest risk in San Augustine County?
According to the FEMA National Risk Index, the highest-risk hazards in San Augustine County, Texas are strong wind, hurricane, and heat wave. The county's overall natural hazard risk is rated Very Low — among the lowest-risk counties in the country.
Has San Augustine County received federal disaster declarations?
Yes. San Augustine County has received 26 federal disaster declarations since 1989, including declarations in 2024. The most common disaster type on record is hurricane (8 declarations).
Has San Augustine County had any FEMA disaster declarations in 2024, 2025, or 2026?
Yes. Recent federal disaster declarations for San Augustine County include Severe Storms, Straight-Line Winds, Tornadoes, And Flooding (2024), Hurricane Beryl (2024). See the declarations table above for the full history since 1989.
How does San Augustine County's natural hazard risk compare to nearby counties?
Among neighboring counties, Nacogdoches County, TX has the highest overall natural hazard risk (Relatively Low) and Sabine County, TX has the lowest (Very Low). San Augustine County is rated Very Low overall.
How is San Augustine County's composite disaster risk index calculated?
San Augustine County's composite disaster risk index — officially FEMA's National Risk Index (NRI) — scores every US county on a 0–100 percentile scale across 18 natural hazard types, factoring in expected annual loss, social vulnerability, and community resilience. San Augustine County's composite score of 18 means its overall natural hazard risk is higher than 18% of US counties.