Valley County, ID
FEMA National Risk Index scores, disaster declarations & hazard data
Valley County has experienced 12 federally declared disasters since 1997, most recently Four Corners Fire in 2022. Its overall natural hazard risk is rated Relatively Low — lower risk than most US counties.
Valley County's highest-rated hazards are wildfire, landslide, and avalanche, with its top risk rated "Relatively Moderate" by FEMA's National Risk Index. Community vulnerability is relatively low (14th percentile nationally), indicating stronger recovery capacity than most US counties.
Past disasters & FEMA designations
A federal disaster declaration officially designates a county for FEMA disaster assistance. Valley County has been designated in 12 declarations since 1997, covering 5 disaster types including fire (5), biological (2), flood (2).
| Year | Type | Event name |
|---|---|---|
| 2022 | Fire | Four Corners Fire |
| 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 |
| 2010 | Severe Storm | Severe Storms And Flooding |
| 2010 | Fire | Hurd Fire |
| 2007 | Fire | East Zone Fire Complex |
| 2007 | Fire | Cascade Fire Complex |
| 2005 | Hurricane | Hurricane Katrina |
Showing the 10 most recent of 12 total declarations since 1997.
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 Moderate | 97.5 | 0 | 0 | — |
| Inland Flooding | Relatively Low | 55.8 | 1 | 0 | $420K |
| Coastal Flooding | Not Applicable | — | 0 | 0 | — |
| Earthquake | Relatively Low | 66.2 | 124 | — | — |
| Heat Wave | Very Low | 17.6 | 0 | 0 | — |
| Tornado | Very Low | 3.6 | 0 | 0 | — |
| Hurricane | Not Applicable | — | 0 | 0 | — |
| Hail | Very Low | 5.2 | 1 | 0 | — |
| Strong Wind | Very Low | 7 | 0 | 0 | — |
| Winter Weather | Relatively Low | 59.1 | 0 | 0 | — |
| Ice Storm | Very Low | 9.2 | — | — | — |
| Cold Wave | Very Low | 5.5 | — | — | — |
| Lightning | Relatively Low | 27 | 0 | 0 | — |
| Drought | Very Low | 12.8 | 0 | 0 | — |
| Landslide | Relatively Moderate | 96.4 | 0 | 0 | — |
| Avalanche | Relatively Moderate | 84.2 | — | — | — |
| Tsunami | Not Applicable | — | — | — | — |
| Volcanic Activity | Very Low | 23.8 | — | — | — |
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
Valley County ranks in the 14th percentile (Very 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 | 14th | Very low |
| Socioeconomic status | 48th | Low |
| Household characteristics | 4th | Very low |
| Racial & ethnic minority status | 0th | Very low |
| Housing type & transportation | 12th | 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 | 99th | Very High |
| Risk to homes | 98th | Very High |
| Buildings in direct exposure zone | 82.4% | — |
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 Valley County?
According to the FEMA National Risk Index, the highest-risk hazards in Valley County, Idaho are wildfire, landslide, and avalanche. The county's overall natural hazard risk is rated Relatively Low — lower risk than most US counties.
Has Valley County received federal disaster declarations?
Yes. Valley County has received 12 federal disaster declarations since 1997, including declarations in 2022. The most common disaster type on record is fire (5 declarations).
Has Valley County had any FEMA disaster declarations in 2024, 2025, or 2026?
No federal disaster declarations have been recorded for Valley County since the start of 2024. Its most recent declaration on record is Four Corners Fire in 2022.
How does Valley County's natural hazard risk compare to nearby counties?
Among neighboring counties, Idaho County, ID has the highest overall natural hazard risk (Relatively Low) and Washington County, ID has the lowest (Very Low). Valley County is rated Relatively Low overall.
How is Valley County's composite disaster risk index calculated?
Valley 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. Valley County's composite score of 56 means its overall natural hazard risk is higher than 56% of US counties.