Idaho County, ID
FEMA National Risk Index scores, disaster declarations & hazard data
Idaho County has experienced 18 federally declared disasters since 1965, most recently Straight-Line Winds in 2026. Its overall natural hazard risk is rated Relatively Low — lower risk than most US counties.
Idaho County's highest-rated hazards are landslide, wildfire, and avalanche, with its top risk rated "Relatively High" by FEMA's National Risk Index. NOAA records 25 storm events in the county over the past decade.
Past disasters & FEMA designations
A federal disaster declaration officially designates a county for FEMA disaster assistance. Idaho County has been designated in 18 declarations since 1965, covering 7 disaster types including fire (5), flood (5), severe storm (3).
| Year | Type | Event name |
|---|---|---|
| 2026 | Straight-Line Winds | Straight-Line Winds |
| 2024 | Flood | Severe Storm, Flooding, Landslides, And Mudslides |
| 2020 | Biological | Covid-19 Pandemic |
| 2020 | Biological | Covid-19 |
| 2019 | Flood | Severe Storms, Flooding, Landslides, And Mudslides |
| 2017 | Flood | Severe Storms, Flooding, Landslides, And Mudslides |
| 2015 | Fire | Tepee Springs Fire |
| 2015 | Fire | Clearwater Lawyer Branch Fire Complex |
| 2011 | Flood | Flooding, Landslides, And Mudslides |
| 2010 | Severe Storm | Severe Storms And Flooding |
Showing the 10 most recent of 18 total declarations since 1965.
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 High | 98.7 | 0 | 0 | — |
| Inland Flooding | Relatively Low | 72.9 | 9 | 0 | $14.0M |
| Coastal Flooding | Not Applicable | — | 0 | 0 | — |
| Earthquake | Very Low | 40.1 | 2 | — | — |
| Heat Wave | Very Low | 37.9 | 3 | 0 | — |
| Tornado | Very Low | 6.1 | 0 | 0 | — |
| Hurricane | Not Applicable | — | 0 | 0 | — |
| Hail | Very Low | 9.3 | 12 | 0 | $202K |
| Strong Wind | Very Low | 6.6 | 0 | 0 | — |
| Winter Weather | Relatively Low | 40.5 | 0 | 0 | — |
| Ice Storm | Very Low | 11 | — | — | — |
| Cold Wave | Very Low | 11.7 | — | — | — |
| Lightning | Relatively Low | 33.2 | 0 | 0 | — |
| Drought | Very Low | 14.9 | 0 | 0 | — |
| Landslide | Relatively High | 98.9 | 1 | 0 | $180K |
| Avalanche | Relatively High | 86.1 | — | — | — |
| 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
Idaho County ranks in the 52nd 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 | 52nd | Moderate |
| Socioeconomic status | 59th | Moderate |
| Household characteristics | 56th | Moderate |
| Racial & ethnic minority status | 28th | Low |
| Housing type & transportation | 45th | 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 | 99th | Very High |
| Risk to homes | 99th | Very High |
| Buildings in direct exposure zone | 77.1% | — |
NOAA tracked 25 weather events in this county over 2016–2025: 7 in 2016–20 vs 18 in 2021–25 .
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 Idaho County?
According to the FEMA National Risk Index, the highest-risk hazards in Idaho County, Idaho are landslide, wildfire, and avalanche. The county's overall natural hazard risk is rated Relatively Low — lower risk than most US counties.
Has Idaho County received federal disaster declarations?
Yes. Idaho County has received 18 federal disaster declarations since 1965, including declarations in 2026. The most common disaster type on record is fire (5 declarations).
Has Idaho County had any FEMA disaster declarations in 2024, 2025, or 2026?
Yes. Recent federal disaster declarations for Idaho County include Straight-Line Winds (2026), Severe Storm, Flooding, Landslides, And Mudslides (2024). See the declarations table above for the full history since 1965.
How does Idaho 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 Lewis County, ID has the lowest (Very Low). Idaho County is rated Relatively Low overall.
How is Idaho County's composite disaster risk index calculated?
Idaho 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. Idaho County's composite score of 78 means its overall natural hazard risk is higher than 78% of US counties.