Miller County, MO
FEMA National Risk Index scores, disaster declarations & hazard data
Miller County has experienced 30 federally declared disasters since 1973, most recently Severe Storms, Straight-Line Winds, Tornadoes, And Flooding in 2026. Its overall natural hazard risk is rated Relatively Low — lower risk than most US counties.
Miller County's highest-rated hazards are ice storm, heat wave, and landslide, with its top risk rated "Relatively High" by FEMA's National Risk Index. Recorded storm events have decreased 16% 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. Miller County has been designated in 30 declarations since 1973, covering 6 disaster types including severe storm (18), flood (4), severe ice storm (4).
| Year | Type | Event name |
|---|---|---|
| 2026 | Severe Storm | Severe Storms, Straight-Line Winds, Tornadoes, 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 |
| 2015 | Severe Storm | Severe Storms, Tornadoes, Straight-Line Winds, And Flooding |
| 2013 | Severe Storm | Severe Storms, Straight-Line Winds, Tornadoes, 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 30 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 | 70 | 0 | 0 | — |
| Inland Flooding | Relatively Low | 61.5 | 26 | 0 | $2.0M |
| Coastal Flooding | Not Applicable | — | 0 | 0 | — |
| Earthquake | Relatively Low | 66.9 | — | — | — |
| Heat Wave | Relatively Moderate | 85.1 | 0 | 0 | — |
| Tornado | Relatively Moderate | 69.5 | 3 | 0 | $4.0M |
| Hurricane | Very Low | 28.9 | 0 | 0 | — |
| Hail | Relatively Low | 43.1 | 17 | 0 | $260K |
| Strong Wind | Relatively Low | 42.5 | 0 | 0 | — |
| Winter Weather | Relatively Moderate | 69.3 | 0 | 0 | — |
| Ice Storm | Relatively High | 87 | — | — | — |
| Cold Wave | Relatively Low | 64.3 | — | — | — |
| Lightning | Relatively Low | 51.9 | 0 | 0 | — |
| Drought | Relatively Low | 37.2 | 0 | 0 | — |
| Landslide | Relatively Low | 81.7 | 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
Miller County ranks in the 38th percentile (Low) 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 | 38th | Low |
| Socioeconomic status | 52nd | Moderate |
| Household characteristics | 29th | Low |
| Racial & ethnic minority status | 9th | Very low |
| Housing type & transportation | 43rd | 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 | 70th | Relatively High |
| Risk to homes | 66th | Relatively High |
| Buildings in direct exposure zone | 81.1% | — |
NOAA tracked 46 weather events in this county over 2016–2025: 25 in 2016–20 vs 21 in 2021–25 (-16% — 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 Miller County?
According to the FEMA National Risk Index, the highest-risk hazards in Miller County, Missouri are ice storm, heat wave, and landslide. The county's overall natural hazard risk is rated Relatively Low — lower risk than most US counties.
Has Miller County received federal disaster declarations?
Yes. Miller County has received 30 federal disaster declarations since 1973, including declarations in 2026. The most common disaster type on record is severe storm (18 declarations).
Has Miller County had any FEMA disaster declarations in 2024, 2025, or 2026?
Yes. Recent federal disaster declarations for Miller County include Severe Storms, Straight-Line Winds, Tornadoes, And Flooding (2026). See the declarations table above for the full history since 1973.
How does Miller County's natural hazard risk compare to nearby counties?
Among neighboring counties, Camden County, MO has the highest overall natural hazard risk (Relatively Moderate) and Maries County, MO has the lowest (Very Low). Miller County is rated Relatively Low overall.
How is Miller County's composite disaster risk index calculated?
Miller 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. Miller County's composite score of 55 means its overall natural hazard risk is higher than 55% of US counties.