Natural disaster risk in Nez Perce County, Idaho
Idaho · population 42,062 · FIPS 16069
Overall: very low risk
Nez Perce County has a composite risk score of 33.0 out of 100 — higher than 33% of US counties. It ranks 26 of 44 in Idaho (1 = highest risk). Its highest-rated hazards are wildfire, inland (riverine) flooding, heat wave.
Drought now: Yes: D2 Severe Drought, at least 54 weeks
Yes. On the U.S. Drought Monitor map valid 13 October 2026, 100% of Nez Perce County is in D2 Severe Drought. Some of it has been at D2 or worse for at least 54 weeks in a row.
Drought in Nez Perce County: the last 52 weeks · droughtmonitor.unl.edu
The U.S. Drought Monitor is jointly produced by the National Drought Mitigation Center at the University of Nebraska-Lincoln, the United States Department of Agriculture, the National Oceanic and Atmospheric Administration and the National Aeronautics and Space Administration. Map courtesy of NDMC.
Risk, loss, vulnerability and resilience
| Measure | Rating and score |
|---|---|
| Overall risk Expected annual loss, adjusted for social vulnerability and community resilience. |
Very low 33 |
| Expected annual loss About $15.1 million a year, on average, across all 18 hazards. |
Relatively low 50.7 |
| Social vulnerability Higher means people may find it harder to prepare and recover. |
Very low 10.6 |
| Community resilience Higher means a stronger ability to prepare, adapt and recover. |
Relatively moderate 55.3 |
Risk by hazard
FEMA's risk rating for each of 18 natural hazards in Nez Perce County, highest first. "Not applicable" means the hazard is not modelled here.
| Hazard | Risk rating and score |
|---|---|
| Wildfire | Relatively moderate 89 |
| Inland (riverine) flooding | Relatively low 57 |
| Heat wave | Relatively low 56 |
| Avalanche | Very low 66 |
| Landslide | Very low 42 |
| Earthquake | Very low 38 |
| Cold wave | Very low 19 |
| Drought | Very low 15 |
| Hail | Very low 8 |
| Lightning | Very low 8 |
| Strong wind | Very low 8 |
| Ice storm | Very low 7 |
| Tornado | Very low 7 |
| Winter weather | Very low 5 |
| Coastal flooding | Not applicable |
| Hurricane | Not applicable |
| Tsunami | Not applicable |
| Volcanic activity | Not applicable |
FEMA disaster declarations for Nez Perce County
Federal declarations that designated Nez Perce County, since 1 Jan 2024 (the period this site keeps from OpenFEMA). Older declarations are in FEMA's own dataset.
Yes. Nez Perce County has been named in 4 FEMA declarations since 1 Jan 2024. The latest is DR-4917-ID (Severe Storms, Straight-Line Winds, Flooding, Landslides, and Mudslides), declared 30 Jun 2026.
| Declaration | Kind | Incident | Declared | Individual assistance here |
|---|---|---|---|---|
| DR-4917-ID | Major disaster | Severe Storms, Straight-Line Winds, Flooding, Landslides, and Mudslides | 30 Jun 2026 | No |
| DR-4905-ID | Major disaster | Straight-Line Winds | 7 Apr 2026 | No |
| FM-5520-ID | Fire management | Gwen Fire | 26 Jul 2024 | No |
| FM-5510-ID | Fire management | Texas Fire | 16 Jul 2024 | No |
All FEMA declarations in Idaho, with estimated apply-by dates · Open FEMA deadlines
This product uses the Federal Emergency Management Agency's OpenFEMA API, but is not endorsed by FEMA. The Federal Government or FEMA cannot vouch for the data or analyses derived from these data after the data have been retrieved from the Agency's website(s). Dataset: Disaster Declarations Summaries - v2.
How to read these ratings
- Ratings run in five steps: very low, relatively low, relatively moderate, relatively high and very high. They compare a county with every other US county; they are not a measure of danger on their own.
- Scores run from 0 to 100 and are national percentiles. The bar shows the score: a score of 80 means a higher value than 80% of US counties.
- Overall risk combines the expected annual loss with social vulnerability and community resilience.
- Expected annual loss is the average yearly loss to buildings, people and agriculture the model expects from all 18 hazards.
- Social vulnerability describes how hard it may be for people to prepare for and recover from a disaster. Higher is worse.
- Community resilience describes a community's ability to prepare, adapt and recover. Higher is better.
- "Not applicable" means FEMA does not model that hazard there (for example, hurricanes far inland).
About this data
Source: FEMA National Risk Index, version 1.20, released December 2025, published by the Federal Emergency Management Agency (US public domain). About the National Risk Index. The index is a model of relative risk built from historical hazard records, what is exposed and community factors. It is not a forecast, it does not describe any single property, and it is not insurance or financial advice. For decisions about a specific address, check FEMA's flood maps and your local emergency management office.
Questions
What is the natural disaster risk in Nez Perce County, Idaho?
FEMA's National Risk Index rates the overall risk in Nez Perce County as very low, with a score of 33.0 out of 100 (higher than 33% of US counties). That is a comparison with other US counties, not a forecast.
What are the biggest natural hazards in Nez Perce County?
The hazards rated highest for Nez Perce County are wildfire (relatively moderate), inland (riverine) flooding (relatively low), heat wave (relatively low).
What is the flood risk in Nez Perce County?
FEMA rates inland (river and rain) flooding risk in Nez Perce County as relatively low. For a specific property, check the FEMA flood map and your local floodplain office.
Has Nez Perce County had a FEMA disaster declaration?
Yes. Nez Perce County has been named in 4 FEMA declarations since 1 Jan 2024. The latest is DR-4917-ID (Severe Storms, Straight-Line Winds, Flooding, Landslides, and Mudslides), declared 30 Jun 2026.
Is Nez Perce County in a drought?
Yes. On the U.S. Drought Monitor map valid 13 October 2026, 100% of Nez Perce County is in D2 Severe Drought. Some of it has been at D2 or worse for at least 54 weeks in a row.
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