Allen Parish, LA
FEMA National Risk Index scores, disaster declarations & hazard data
Allen Parish has experienced 40 federally declared disasters since 1979, most recently Severe Winter Storm in 2026. Its overall natural hazard risk is rated Relatively Low — lower risk than most US counties.
Allen Parish's highest-rated hazards are hurricane, lightning, and ice storm, with its top risk rated "Relatively Moderate" by FEMA's National Risk Index. Recorded storm events have decreased 46% over the past five years compared to the prior five-year period. Community vulnerability is elevated (90th 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. Allen Parish has been designated in 40 declarations since 1979, covering 9 disaster types including hurricane (24), flood (5), coastal storm (3).
| Year | Type | Event name |
|---|---|---|
| 2026 | Winter Storm | Severe Winter Storm |
| 2024 | Hurricane | Tropical Storm 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 |
| 2021 | Hurricane | Hurricane Ida |
| 2021 | Hurricane | Hurricane Delta |
Showing the 10 most recent of 40 total declarations since 1979.
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 | Relatively Low | 76.7 | 0 | 0 | — |
| Inland Flooding | Relatively Low | 45.1 | 13 | 0 | $1.7M |
| Coastal Flooding | Very Low | 30.6 | 0 | 0 | — |
| Earthquake | Very Low | 29.7 | — | — | — |
| Heat Wave | Relatively Low | 51.9 | 2 | 0 | — |
| Tornado | Relatively Moderate | 65.1 | 10 | 0 | $684K |
| Hurricane | Relatively Moderate | 85 | 0 | 0 | — |
| Hail | Very Low | 28.6 | 15 | 0 | — |
| Strong Wind | Relatively Low | 22.2 | 0 | 0 | — |
| Winter Weather | Very Low | 24.2 | 0 | 0 | — |
| Ice Storm | Relatively Moderate | 79.4 | — | — | — |
| Cold Wave | Relatively Moderate | 66 | — | — | — |
| Lightning | Relatively Moderate | 80 | 0 | 0 | — |
| Drought | Relatively Moderate | 79.3 | 0 | 0 | — |
| Landslide | Very Low | 7.6 | 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
Allen Parish ranks in the 90th 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 | 90th | High |
| Socioeconomic status | 75th | High |
| Household characteristics | 94th | High |
| Racial & ethnic minority status | 66th | Moderate |
| Housing type & transportation | 94th | 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 | 82nd | Very High |
| Risk to homes | 80th | Very High |
| Buildings in direct exposure zone | 61.1% | — |
NOAA tracked 37 weather events in this county over 2016–2025: 24 in 2016–20 vs 13 in 2021–25 (-46% — frequency decreasing).
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 Allen Parish?
According to the FEMA National Risk Index, the highest-risk hazards in Allen Parish, Louisiana are hurricane, lightning, and ice storm. The county's overall natural hazard risk is rated Relatively Low — lower risk than most US counties.
Has Allen Parish received federal disaster declarations?
Yes. Allen Parish has received 40 federal disaster declarations since 1979, including declarations in 2026. The most common disaster type on record is hurricane (24 declarations).
Has Allen Parish had any FEMA disaster declarations in 2024, 2025, or 2026?
Yes. Recent federal disaster declarations for Allen Parish include Severe Winter Storm (2026), Tropical Storm Francine (2024). See the declarations table above for the full history since 1979.
How does Allen Parish's natural hazard risk compare to nearby counties?
Among neighboring counties, Acadia Parish, LA has the highest overall natural hazard risk (Relatively Moderate) and Beauregard Parish, LA has the lowest (Relatively Low). Allen Parish is rated Relatively Low overall.
How is Allen Parish's composite disaster risk index calculated?
Allen 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. Allen Parish's composite score of 51 means its overall natural hazard risk is higher than 51% of US counties.