Chickasaw County, MS
FEMA National Risk Index scores, disaster declarations & hazard data
Chickasaw County has experienced 23 federally declared disasters since 1973, most recently Severe Winter Storm in 2026. Its overall natural hazard risk is rated Relatively Low — lower risk than most US counties.
Chickasaw County's highest-rated hazards are strong wind, earthquake, and drought, with its top risk rated "Relatively High" by FEMA's National Risk Index. Recorded storm events have increased 585% over the past five years compared to the prior five-year period. Community vulnerability is elevated (95th 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. Chickasaw County has been designated in 23 declarations since 1973, covering 7 disaster types including severe storm (11), hurricane (5), winter storm (2).
| Year | Type | Event name |
|---|---|---|
| 2026 | Winter Storm | Severe Winter Storm |
| 2026 | Winter Storm | Severe Winter Storm |
| 2022 | Hurricane | Hurricane Ida |
| 2021 | Hurricane | Hurricane Ida |
| 2020 | Severe Storm | Severe Storms, Tornadoes, Straight-Line Winds, And Flooding |
| 2020 | Severe Storm | Severe Storms, Tornadoes, Straight-Line Winds, And Flooding |
| 2020 | Severe Storm | Severe Storm, 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 23 total declarations since 1973.
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 | 30.9 | 0 | 0 | — |
| Inland Flooding | Very Low | 26.5 | 10 | 0 | $290K |
| Coastal Flooding | Not Applicable | — | 0 | 0 | — |
| Earthquake | Relatively Low | 81.5 | — | — | — |
| Heat Wave | Relatively Low | 66.5 | 80 | 0 | — |
| Tornado | Relatively Moderate | 72.6 | 8 | 0 | $360K |
| Hurricane | Relatively Low | 67.5 | 0 | 0 | — |
| Hail | Relatively Low | 37.8 | 4 | 0 | — |
| Strong Wind | Relatively High | 86.7 | 0 | 0 | — |
| Winter Weather | Very Low | 10.3 | 0 | 0 | — |
| Ice Storm | Relatively Low | 50.6 | — | — | — |
| Cold Wave | Relatively Moderate | 66 | — | — | — |
| Lightning | Relatively Low | 55.5 | 0 | 0 | — |
| Drought | Relatively Moderate | 78.3 | 0 | 0 | — |
| Landslide | Very Low | 34.2 | 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
Chickasaw County ranks in the 95th 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 | 95th | High |
| Socioeconomic status | 87th | High |
| Household characteristics | 98th | High |
| Racial & ethnic minority status | 88th | High |
| 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 | 48th | Relatively Moderate |
| Risk to homes | 45th | Relatively Moderate |
| Buildings in direct exposure zone | 78.8% | — |
NOAA tracked 102 weather events in this county over 2016–2025: 13 in 2016–20 vs 89 in 2021–25 (+585% — 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 Chickasaw County?
According to the FEMA National Risk Index, the highest-risk hazards in Chickasaw County, Mississippi are strong wind, earthquake, and drought. The county's overall natural hazard risk is rated Relatively Low — lower risk than most US counties.
Has Chickasaw County received federal disaster declarations?
Yes. Chickasaw County has received 23 federal disaster declarations since 1973, including declarations in 2026. The most common disaster type on record is severe storm (11 declarations).
Has Chickasaw County had any FEMA disaster declarations in 2024, 2025, or 2026?
Yes. Recent federal disaster declarations for Chickasaw County include Severe Winter Storm (2026), Severe Winter Storm (2026). See the declarations table above for the full history since 1973.
How does Chickasaw County's natural hazard risk compare to nearby counties?
Among neighboring counties, Lee County, MS has the highest overall natural hazard risk (Relatively Moderate) and Webster County, MS has the lowest (Very Low). Chickasaw County is rated Relatively Low overall.
How is Chickasaw County's composite disaster risk index calculated?
Chickasaw 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. Chickasaw County's composite score of 44 means its overall natural hazard risk is higher than 44% of US counties.