Shelby County, TN
FEMA National Risk Index scores, disaster declarations & hazard data
Shelby County has experienced 28 federally declared disasters since 1973, most recently Severe Winter Storm in 2026. Its overall natural hazard risk is rated Relatively High — higher risk than most US counties.
Shelby County's highest-rated hazards are tornado, cold wave, and heat wave, with its top risk rated "Very High" by FEMA's National Risk Index. Recorded storm events have increased 100% over the past five years compared to the prior five-year period. Community vulnerability is elevated (87th 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. Shelby County has been designated in 28 declarations since 1973, covering 7 disaster types including severe storm (17), winter storm (3), severe ice storm (2).
| 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 |
| 2025 | Severe Storm | Severe Storms, Straight-Line Winds, Tornadoes, And Flooding |
| 2023 | Winter Storm | Severe Winter Storm |
| 2023 | Severe Storm | Severe Storms And Straight-Line Winds |
| 2023 | Severe Storm | Severe Storms And Straight-Line Winds |
| 2022 | Severe Storm | Severe Winter Storm |
| 2021 | Severe Ice Storm | Severe Winter Storms |
| 2020 | Biological | Covid-19 Pandemic |
Showing the 10 most recent of 28 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 | Relatively Low | 71.1 | 0 | 0 | — |
| Inland Flooding | Relatively High | 98.7 | 79 | 0 | $3.4M |
| Coastal Flooding | Not Applicable | — | 0 | 0 | — |
| Earthquake | Relatively High | 99.5 | 1 | — | — |
| Heat Wave | Relatively High | 99.6 | 107 | 7 | — |
| Tornado | Very High | 99.8 | 1 | 0 | $1.5M |
| Hurricane | Relatively Low | 67.1 | 0 | 0 | — |
| Hail | Very Low | 12.8 | 63 | 0 | $5K |
| Strong Wind | Relatively High | 87.7 | 0 | 0 | — |
| Winter Weather | Relatively High | 88.7 | 0 | 0 | — |
| Ice Storm | Relatively High | 91.2 | — | — | — |
| Cold Wave | Very High | 99.8 | — | — | — |
| Lightning | Relatively High | 96.2 | 8 | 1 | $457K |
| Drought | Relatively Low | 37 | 0 | 0 | — |
| Landslide | Relatively Moderate | 92.6 | 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
Shelby County ranks in the 87th 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 | 87th | High |
| Socioeconomic status | 90th | High |
| Household characteristics | 78th | High |
| Racial & ethnic minority status | 94th | High |
| Housing type & transportation | 63rd | Moderate |
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 | 44th | Relatively Moderate |
| Risk to homes | 41st | Relatively Moderate |
| Buildings in direct exposure zone | 22.5% | — |
NOAA tracked 258 weather events in this county over 2016–2025: 86 in 2016–20 vs 172 in 2021–25 (+100% — 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 Shelby County?
According to the FEMA National Risk Index, the highest-risk hazards in Shelby County, Tennessee are tornado, cold wave, and heat wave. The county's overall natural hazard risk is rated Relatively High — higher risk than most US counties.
Has Shelby County received federal disaster declarations?
Yes. Shelby County has received 28 federal disaster declarations since 1973, including declarations in 2026. The most common disaster type on record is severe storm (17 declarations).
Has Shelby County had any FEMA disaster declarations in 2024, 2025, or 2026?
Yes. Recent federal disaster declarations for Shelby County include Severe Winter Storm (2026), Severe Winter Storm (2026), Severe Storms, Straight-Line Winds, Tornadoes, And Flooding (2025), Severe Storms, Straight-Line Winds, Tornadoes, And Flooding (2025). See the declarations table above for the full history since 1973.
How does Shelby County's natural hazard risk compare to nearby counties?
Among neighboring counties, DeSoto County, MS has the highest overall natural hazard risk (Relatively Moderate) and Tate County, MS has the lowest (Very Low). Shelby County is rated Relatively High overall.
How is Shelby County's composite disaster risk index calculated?
Shelby 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. Shelby County's composite score of 99 means its overall natural hazard risk is higher than 99% of US counties.