Deer Lodge County, MT
FEMA National Risk Index scores, disaster declarations & hazard data
Deer Lodge County has experienced 10 federally declared disasters since 1974, most recently Covid-19 in 2020. Its overall natural hazard risk is rated Very Low — among the lowest-risk counties in the country.
Deer Lodge County's highest-rated hazards are avalanche, landslide, and winter weather, with its top risk rated "Relatively High" by FEMA's National Risk Index.
Past disasters & FEMA designations
A federal disaster declaration officially designates a county for FEMA disaster assistance. Deer Lodge County has been designated in 10 declarations since 1974, covering 5 disaster types including severe storm (3), biological (2), fire (2).
| Year | Type | Event name |
|---|---|---|
| 2020 | Biological | Covid-19 Pandemic |
| 2020 | Biological | Covid-19 |
| 2011 | Severe Storm | Severe Storms And Flooding |
| 2005 | Hurricane | Hurricane Katrina Evacuation |
| 2000 | Fire | Wildfires |
| 2000 | Fire | Mt-Southwestern Zone Two Fire Complex |
| 1997 | Severe Storm | Severe Storms,Ice Jams, Snow Melt, Flooding |
| 1996 | Severe Storm | Severe Storms, Flooding, And Ice Jams |
| 1986 | Flood | Heavy Rains, Landslides & Flooding |
| 1974 | Flood | Severe Storms, Flooding & Landslides |
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 | 73.6 | 0 | 0 | — |
| Inland Flooding | Very Low | 10.5 | 1 | 0 | $685K |
| Coastal Flooding | Not Applicable | — | 0 | 0 | — |
| Earthquake | Very Low | 50 | 1 | — | — |
| Heat Wave | Very Low | 7.4 | 0 | 0 | — |
| Tornado | Very Low | 5.5 | 0 | 0 | — |
| Hurricane | Not Applicable | — | 0 | 0 | — |
| Hail | Very Low | 10.6 | 2 | 0 | — |
| Strong Wind | Very Low | 5.6 | 0 | 0 | — |
| Winter Weather | Relatively Moderate | 77.2 | 0 | 0 | — |
| Ice Storm | Very Low | 14.2 | — | — | — |
| Cold Wave | Relatively Low | 62 | — | — | — |
| Lightning | Relatively Low | 41.3 | 0 | 0 | — |
| Drought | Very Low | 15.3 | 0 | 0 | — |
| Landslide | Relatively Low | 80.8 | 0 | 0 | — |
| Avalanche | Relatively High | 93.9 | — | — | — |
| 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
Deer Lodge County ranks in the 64th 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 | 64th | Moderate |
| Socioeconomic status | 61st | Moderate |
| Household characteristics | 67th | Moderate |
| Racial & ethnic minority status | 30th | Low |
| Housing type & transportation | 71st | 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 | 80th | Very High |
| Risk to homes | 83rd | Very High |
| Buildings in direct exposure zone | 47.3% | — |
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 Deer Lodge County?
According to the FEMA National Risk Index, the highest-risk hazards in Deer Lodge County, Montana are avalanche, landslide, and winter weather. The county's overall natural hazard risk is rated Very Low — among the lowest-risk counties in the country.
Has Deer Lodge County received federal disaster declarations?
Yes. Deer Lodge County has received 10 federal disaster declarations since 1974, including declarations in 2020. The most common disaster type on record is severe storm (3 declarations).
Has Deer Lodge County had any FEMA disaster declarations in 2024, 2025, or 2026?
No federal disaster declarations have been recorded for Deer Lodge County since the start of 2024. Its most recent declaration on record is Covid-19 in 2020.
How does Deer Lodge County's natural hazard risk compare to nearby counties?
Among neighboring counties, Ravalli County, MT has the highest overall natural hazard risk (Relatively Low) and Granite County, MT has the lowest (Very Low). Deer Lodge County is rated Very Low overall.
How is Deer Lodge County's composite disaster risk index calculated?
Deer Lodge 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. Deer Lodge County's composite score of 18 means its overall natural hazard risk is higher than 18% of US counties.