Bonner County, ID
FEMA National Risk Index scores, disaster declarations & hazard data
Bonner County has experienced 18 federally declared disasters since 1967, most recently Straight-Line Winds in 2026. Its overall natural hazard risk is rated Relatively Low — lower risk than most US counties.
Bonner County's highest-rated hazards are avalanche, landslide, and inland flooding, 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. Bonner County has been designated in 18 declarations since 1967, covering 7 disaster types including severe storm (7), fire (3), flood (3).
| Year | Type | Event name |
|---|---|---|
| 2026 | Straight-Line Winds | Straight-Line Winds |
| 2026 | Severe Storm | Severe Storms, Straight-Line Winds, Flooding, Landslides, And Mudslides |
| 2025 | Fire | Sunset Fire |
| 2021 | Severe Storm | Straight-Line Winds |
| 2020 | Biological | Covid-19 Pandemic |
| 2020 | Biological | Covid-19 |
| 2017 | Flood | Severe Storms, Flooding, Landslides, And Mudslides |
| 2016 | Severe Storm | Severe Winter Storms |
| 2016 | Severe Storm | Severe Storm And Straight-Line Wind |
| 2015 | Fire | Cape Horn Fire |
Showing the 10 most recent of 18 total declarations since 1967.
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 | 82.7 | 0 | 0 | — |
| Inland Flooding | Relatively Moderate | 87 | 7 | 0 | $2.0M |
| Coastal Flooding | Not Applicable | — | 0 | 0 | — |
| Earthquake | Very Low | 55.8 | 6 | — | — |
| Heat Wave | Relatively Low | 53.9 | 1 | 0 | — |
| Tornado | Very Low | 10.3 | 0 | 0 | — |
| Hurricane | Not Applicable | — | 0 | 0 | — |
| Hail | Very Low | 5.5 | 8 | 0 | $6K |
| Strong Wind | Relatively Low | 20.4 | 0 | 0 | — |
| Winter Weather | Relatively High | 86.5 | 0 | 0 | — |
| Ice Storm | Relatively Moderate | 71.3 | — | — | — |
| Cold Wave | Relatively Moderate | 71.6 | — | — | — |
| Lightning | Relatively Low | 46.9 | 0 | 0 | — |
| Drought | Very Low | 13.4 | 0 | 0 | — |
| Landslide | Relatively Moderate | 93.9 | 3 | 0 | $52K |
| Avalanche | Relatively High | 94.6 | — | — | — |
| 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
Bonner County ranks in the 41st 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 | 41st | Low |
| Socioeconomic status | 47th | Low |
| Household characteristics | 33rd | Low |
| Racial & ethnic minority status | 27th | Low |
| Housing type & transportation | 50th | 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 | 60th | Relatively High |
| Risk to homes | 69th | Relatively High |
| Buildings in direct exposure zone | 78.1% | — |
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 Bonner County?
According to the FEMA National Risk Index, the highest-risk hazards in Bonner County, Idaho are avalanche, landslide, and inland flooding. The county's overall natural hazard risk is rated Relatively Low — lower risk than most US counties.
Has Bonner County received federal disaster declarations?
Yes. Bonner County has received 18 federal disaster declarations since 1967, including declarations in 2026. The most common disaster type on record is severe storm (7 declarations).
Has Bonner County had any FEMA disaster declarations in 2024, 2025, or 2026?
Yes. Recent federal disaster declarations for Bonner County include Straight-Line Winds (2026), Severe Storms, Straight-Line Winds, Flooding, Landslides, And Mudslides (2026), Sunset Fire (2025). See the declarations table above for the full history since 1967.
How does Bonner County's natural hazard risk compare to nearby counties?
Among neighboring counties, Spokane County, WA has the highest overall natural hazard risk (Relatively Moderate) and Boundary County, ID has the lowest (Very Low). Bonner County is rated Relatively Low overall.
How is Bonner County's composite disaster risk index calculated?
Bonner 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. Bonner County's composite score of 77 means its overall natural hazard risk is higher than 77% of US counties.