Natural Disaster Risk in Bonneville County

Natural Hazard Profile: Bonneville County, Idaho

Bonneville County, in the United States in Idaho, is characterized by its semi-arid climate — dry summers, cold winters, and significant wildfire risk. The county faces a high fire danger period from July through September, and its FEMA risk assessment establishes the hazard baseline shared by all the towns and cities it contains.

Bonneville County's overall natural disaster risk is rated 6.9/10 (High) by FEMA's National Risk Index. Snow avalanche exposure tops the local risk profile, with the area's mountain setting and annual snowfall loading producing regular avalanche cycles on steep slopes. Secondary hazards include volcano and earthquake.

Within Idaho, Bonneville County's risk is, considerably above the 5.1/10 state average. Nationally, it ranks well above the U.S. national average of 4.5/10. FEMA's analysis of Bonneville County identifies avalanche as the foremost hazard, followed by volcano and earthquake. These rankings reflect the relative frequency and severity of each hazard type in the local environment.

Bonneville County's high risk designation reflects meaningful exposure to natural hazards. Residents should verify that their insurance covers the area's primary risks, prepare a family emergency plan, and stay informed about seasonal hazard peaks through local weather and emergency management services.