Idaho

Comprehensive climate risk and disaster history profile

Billion-Dollar Events

$91.5B

Total Economic Impact

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

Cold Wave

70.1 Avg Risk Score

Landslide

63.76 Avg Risk Score

Earthquake

62.07 Avg Risk Score

Avalanche

51.65 Avg Risk Score

Heat Wave

48.67 Avg Risk Score

Winter Weather

45.61 Avg Risk Score

Drought

45.48 Avg Risk Score

Historical billion-dollar events by category (1980-2024)

wildfire 7 events

$23.7B

drought 6 events

$62.2B

flooding 3 events

$5.5B

How disaster frequency and costs have changed over time

Counties with the highest overall risk scores based on FEMA NRI

Rank	County	Risk Score	Risk Rating	SVI Percentile
1	Ada	87.94	Relatively Moderate	19.3%
2	Idaho	80.91	Relatively Low	52.0%
3	Elmore	79.35	Relatively Low	81.5%
4	Bonneville	71.36	Relatively Low	44.7%
5	Bannock	65.7	Relatively Low	50.0%
6	Canyon	65.26	Relatively Low	62.2%
7	Boise	61.63	Relatively Low	10.8%
8	Kootenai	61.31	Relatively Low	27.5%
9	Valley	58.26	Relatively Low	13.7%
10	Twin Falls	51.35	Relatively Low	57.6%