Terrebonne Parish, LA
FEMA National Risk Index scores, disaster declarations & hazard data
Terrebonne Parish has experienced 53 federally declared disasters since 1965, most recently Severe Winter Storm in 2026. Its overall natural hazard risk is rated Relatively Moderate — near the middle compared to other US counties.
Terrebonne Parish's highest-rated hazards are hurricane, coastal flooding, and heat wave, with its top risk rated "Very High" by FEMA's National Risk Index. NOAA records 25 storm events in the county over the past decade. Community vulnerability is elevated (78th 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. Terrebonne Parish has been designated in 53 declarations since 1965, covering 9 disaster types including hurricane (31), flood (8), coastal storm (5).
| Year | Type | Event name |
|---|---|---|
| 2026 | Tropical Storm | Tropical Storm Arthur |
| 2026 | Winter Storm | Severe Winter Storm |
| 2024 | Hurricane | Tropical Storm Francine |
| 2024 | Hurricane | Hurricane Francine |
| 2021 | Hurricane | Tropical Storm Zeta |
| 2021 | Coastal Storm | Tropical Storm Nicholas |
| 2021 | Hurricane | Tropical Storm Ida |
| 2021 | Severe Ice Storm | Severe Winter Storms |
| 2021 | Severe Ice Storm | Severe Winter Storm |
| 2021 | Hurricane | Hurricane Zeta |
Showing the 10 most recent of 53 total declarations since 1965.
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 | 23.3 | 0 | 0 | — |
| Inland Flooding | Relatively Moderate | 81.9 | 9 | 0 | $100K |
| Coastal Flooding | Relatively High | 94 | 0 | 0 | — |
| Earthquake | Very Low | 54.8 | — | — | — |
| Heat Wave | Relatively Moderate | 93.7 | 0 | 0 | — |
| Tornado | Relatively High | 92.9 | 4 | 0 | $160K |
| Hurricane | Very High | 98.4 | 0 | 0 | — |
| Hail | Relatively Low | 69.6 | 12 | 0 | — |
| Strong Wind | Relatively Low | 35 | 0 | 0 | — |
| Winter Weather | Relatively Low | 56.8 | 0 | 0 | — |
| Ice Storm | Very Low | 2.8 | — | — | — |
| Cold Wave | Relatively Moderate | 89.1 | — | — | — |
| Lightning | Relatively High | 91.4 | 1 | 0 | $300K |
| Drought | Relatively Moderate | 83.7 | 0 | 0 | — |
| Landslide | Very Low | 22.8 | 0 | 0 | — |
| Avalanche | Not Applicable | — | — | — | — |
| Tsunami | Insufficient Data | — | — | — | — |
| 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
Terrebonne Parish ranks in the 78th 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 | 78th | High |
| Socioeconomic status | 65th | Moderate |
| Household characteristics | 76th | High |
| Racial & ethnic minority status | 72nd | Moderate |
| Housing type & transportation | 81st | 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 | 19th | Very Low |
| Risk to homes | 26th | Relatively Low |
| Buildings in direct exposure zone | 22.9% | — |
NOAA tracked 25 weather events in this county over 2016–2025: 8 in 2016–20 vs 17 in 2021–25 .
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 Terrebonne Parish?
According to the FEMA National Risk Index, the highest-risk hazards in Terrebonne Parish, Louisiana are hurricane, coastal flooding, and heat wave. The county's overall natural hazard risk is rated Relatively Moderate — near the middle compared to other US counties.
Has Terrebonne Parish received federal disaster declarations?
Yes. Terrebonne Parish has received 53 federal disaster declarations since 1965, including declarations in 2026. The most common disaster type on record is hurricane (31 declarations).
Has Terrebonne Parish had any FEMA disaster declarations in 2024, 2025, or 2026?
Yes. Recent federal disaster declarations for Terrebonne Parish include Tropical Storm Arthur (2026), Severe Winter Storm (2026), Tropical Storm Francine (2024), Hurricane Francine (2024). See the declarations table above for the full history since 1965.
How does Terrebonne Parish's natural hazard risk compare to nearby counties?
Among neighboring counties, Jefferson Parish, LA has the highest overall natural hazard risk (Relatively High) and Assumption Parish, LA has the lowest (Relatively Low). Terrebonne Parish is rated Relatively Moderate overall.
How is Terrebonne Parish's composite disaster risk index calculated?
Terrebonne Parish'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. Terrebonne Parish's composite score of 94 means its overall natural hazard risk is higher than 94% of US counties.