Dallas County, MO
FEMA National Risk Index scores, disaster declarations & hazard data
Dallas County has experienced 25 federally declared disasters since 1973, most recently Covid-19 in 2020. Its overall natural hazard risk is rated Very Low — among the lowest-risk counties in the country.
Dallas County's highest-rated hazards are ice storm, lightning, and wildfire, with its top risk rated "Very High" by FEMA's National Risk Index. Recorded storm events have increased 28% over the past five years compared to the prior five-year period.
Past disasters & FEMA designations
A federal disaster declaration officially designates a county for FEMA disaster assistance. Dallas County has been designated in 25 declarations since 1973, covering 6 disaster types including severe storm (14), flood (4), severe ice storm (3).
| Year | Type | Event name |
|---|---|---|
| 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, Tornadoes, And Flooding |
| 2017 | Flood | Severe Storms, Tornadoes, Straight-Line Winds And Flooding |
| 2016 | Flood | Severe Storms, Tornadoes, Straight-Line Winds, And Flooding |
| 2016 | Flood | Severe Storms, Tornadoes, Straight-Line Winds, And Flooding |
| 2015 | Severe Storm | Severe Storms, Tornadoes, Straight-Line Winds, And Flooding |
| 2013 | Severe Storm | Severe Storms, Straight-Line Winds And Flooding |
| 2011 | Severe Storm | Severe Winter Storm And Snowstorm |
Showing the 10 most recent of 25 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 | 73.5 | 0 | 0 | — |
| Inland Flooding | Relatively Low | 37.9 | 62 | 2 | $215K |
| Coastal Flooding | Not Applicable | — | 0 | 0 | — |
| Earthquake | Very Low | 59.1 | — | — | — |
| Heat Wave | Relatively Low | 71.5 | 0 | 0 | — |
| Tornado | Relatively Low | 60.4 | 5 | 0 | $314K |
| Hurricane | Very Low | 16 | 0 | 0 | — |
| Hail | Relatively Low | 43.1 | 15 | 0 | $225K |
| Strong Wind | Relatively Moderate | 53.7 | 0 | 0 | — |
| Winter Weather | Relatively Low | 55.7 | 0 | 0 | — |
| Ice Storm | Very High | 97.5 | — | — | — |
| Cold Wave | Relatively Low | 35.5 | — | — | — |
| Lightning | Relatively High | 83.6 | 0 | 0 | — |
| Drought | Relatively Low | 60.4 | 0 | 0 | — |
| Landslide | Very Low | 39 | 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
Dallas County ranks in the 55th percentile (Moderate) 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 | 55th | Moderate |
| Socioeconomic status | 80th | High |
| Household characteristics | 67th | Moderate |
| Racial & ethnic minority status | 13th | Very low |
| Housing type & transportation | 22nd | Very low |
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 | 80th | Very High |
| Risk to homes | 76th | Relatively High |
| Buildings in direct exposure zone | 90.5% | — |
NOAA tracked 82 weather events in this county over 2016–2025: 36 in 2016–20 vs 46 in 2021–25 (+28% — 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 Dallas County?
According to the FEMA National Risk Index, the highest-risk hazards in Dallas County, Missouri are ice storm, lightning, and wildfire. The county's overall natural hazard risk is rated Very Low — among the lowest-risk counties in the country.
Has Dallas County received federal disaster declarations?
Yes. Dallas County has received 25 federal disaster declarations since 1973, including declarations in 2020. The most common disaster type on record is severe storm (14 declarations).
Has Dallas County had any FEMA disaster declarations in 2024, 2025, or 2026?
No federal disaster declarations have been recorded for Dallas County since the start of 2024. Its most recent declaration on record is Covid-19 in 2020.
How does Dallas County's natural hazard risk compare to nearby counties?
Among neighboring counties, Greene County, MO has the highest overall natural hazard risk (Relatively Moderate) and Hickory County, MO has the lowest (Very Low). Dallas County is rated Very Low overall.
How is Dallas County's composite disaster risk index calculated?
Dallas 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. Dallas County's composite score of 42 means its overall natural hazard risk is higher than 42% of US counties.