ID
Idaho
Comprehensive climate risk and disaster history profile
15
Billion-Dollar Events
$7.8B
Total Economic Impact
44
Counties
34.61
Avg Risk Score
Top Natural Hazards
Based on FEMA National Risk Index data across all 44 counties
Wildfire
83.1
Avg Risk Score
Freeze
68.51
Avg Risk Score
LNDS
63.76
Avg Risk Score
ERQK
62.07
Avg Risk Score
AVLN
51.65
Avg Risk Score
Winter Storm
45.61
Avg Risk Score
Disaster Type Breakdown
Historical billion-dollar events by category (1980-2024)
Drought
6 events
$3.6B
Wildfire
6 events
$3.0B
Flooding
3 events
$1.2B
Disaster Trends by Decade
How disaster frequency and costs have changed over time
Highest Risk Counties
Counties with the highest overall risk scores based on FEMA NRI
| Rank | County | Risk Score | Risk Rating | SVI Percentile |
|---|---|---|---|---|
| 1 | Ada | 87.94 | 1674.0% | |
| 2 | Idaho | 80.91 | 5538.0% | |
| 3 | Elmore | 79.35 | 7934.0% | |
| 4 | Bonneville | 71.36 | 4348.0% | |
| 5 | Bannock | 65.7 | 6015.0% | |
| 6 | Canyon | 65.26 | 6429.0% | |
| 7 | Boise | 61.63 | 987.0% | |
| 8 | Kootenai | 61.31 | 2562.0% | |
| 9 | Valley | 58.26 | 1143.0% | |
| 10 | Twin Falls | 51.35 | 5379.0% |
Recent Major Events
Most costly billion-dollar disasters in the past 10 years
Drought
Jan 2024
$0.5B
12 fatalities
Wildfire
Apr 2022
$0.5B
2 fatalities
Wildfire
Jun 2021
$1.5B
1 fatalities
Wildfire
Jun 2015
$0.3B
1 fatalities
Drought
Jan 2015
$0.5B
Drought
Mar 2013
$0.5B
2 fatalities
Wildfire
Jun 2012
$0.2B
1 fatalities
Drought
Jan 2012
$1.5B
6 fatalities
Wildfire
Sep 2008
$0.1B
1 fatalities
Drought
Jan 2008
$0.3B
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