Washington County, MS
FEMA National Risk Index scores, disaster declarations & hazard data
Washington County has experienced 30 federally declared disasters since 1971, most recently Severe Winter Storm in 2026. Its overall natural hazard risk is rated Relatively Moderate — near the middle compared to other US counties.
Washington County's highest-rated hazards are tornado, earthquake, and drought, with its top risk rated "Relatively High" by FEMA's National Risk Index. Recorded storm events have decreased 55% over the past five years compared to the prior five-year period. Community vulnerability is elevated (100th 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. Washington County has been designated in 30 declarations since 1971, covering 8 disaster types including severe storm (11), flood (5), hurricane (5).
| Year | Type | Event name |
|---|---|---|
| 2026 | Winter Storm | Severe Winter Storm |
| 2026 | Winter Storm | Severe Winter Storm |
| 2025 | Severe Storm | Severe Storms, Straight-Line Winds, Tornadoes, And Flooding |
| 2023 | Severe Storm | Severe Storms, Straight-Line Winds, And Tornadoes |
| 2022 | Hurricane | Hurricane Ida |
| 2021 | Hurricane | Hurricane Ida |
| 2020 | Severe Storm | Severe Storms, Tornadoes, Straight-Line Winds, And Flooding |
| 2020 | Biological | Covid-19 Pandemic |
| 2020 | Biological | Covid-19 |
| 2019 | Severe Storm | Severe Storms, Straight-Line Winds, Tornadoes, And Flooding |
Showing the 10 most recent of 30 total declarations since 1971.
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 | 26.1 | 0 | 0 | — |
| Inland Flooding | Relatively Moderate | 81.2 | 30 | 0 | $1.1M |
| Coastal Flooding | Not Applicable | — | 0 | 0 | — |
| Earthquake | Relatively Moderate | 90.8 | 1 | — | — |
| Heat Wave | Relatively Moderate | 89.4 | 0 | 0 | — |
| Tornado | Relatively High | 93 | 3 | 0 | $125K |
| Hurricane | Relatively Low | 72.3 | 0 | 0 | — |
| Hail | Relatively Moderate | 89.9 | 22 | 0 | $1.7M |
| Strong Wind | Relatively Moderate | 83.4 | 0 | 0 | — |
| Winter Weather | Very Low | 24.6 | 0 | 0 | — |
| Ice Storm | Relatively Moderate | 81 | — | — | — |
| Cold Wave | Relatively Moderate | 80.7 | — | — | — |
| Lightning | Relatively Moderate | 75.3 | 0 | 0 | — |
| Drought | Relatively High | 90.7 | 0 | 0 | — |
| Landslide | Very Low | 36 | 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
Washington County ranks in the 100th 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 | 100th | High |
| Socioeconomic status | 100th | High |
| Household characteristics | 98th | High |
| Racial & ethnic minority status | 98th | High |
| Housing type & transportation | 88th | 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 | 21st | Relatively Low |
| Risk to homes | 20th | Relatively Low |
| Buildings in direct exposure zone | 28.7% | — |
NOAA tracked 55 weather events in this county over 2016–2025: 38 in 2016–20 vs 17 in 2021–25 (-55% — 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 Washington County?
According to the FEMA National Risk Index, the highest-risk hazards in Washington County, Mississippi are tornado, earthquake, and drought. The county's overall natural hazard risk is rated Relatively Moderate — near the middle compared to other US counties.
Has Washington County received federal disaster declarations?
Yes. Washington County has received 30 federal disaster declarations since 1971, including declarations in 2026. The most common disaster type on record is severe storm (11 declarations).
Has Washington County had any FEMA disaster declarations in 2024, 2025, or 2026?
Yes. Recent federal disaster declarations for Washington County include Severe Winter Storm (2026), Severe Winter Storm (2026), Severe Storms, Straight-Line Winds, Tornadoes, And Flooding (2025). See the declarations table above for the full history since 1971.
How does Washington County's natural hazard risk compare to nearby counties?
Among neighboring counties, Bolivar County, MS has the highest overall natural hazard risk (Relatively Low) and Issaquena County, MS has the lowest (Very Low). Washington County is rated Relatively Moderate overall.
How is Washington County's composite disaster risk index calculated?
Washington 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. Washington County's composite score of 83 means its overall natural hazard risk is higher than 83% of US counties.