Natural Disaster Risk in Declo

Natural Hazard Profile: Declo, Idaho

Declo, in Cassia County, is a small community of about 1,984 situated in the Great Plains. Its semi-arid climate brings dry summers, cold winters, and significant wildfire risk, and in particular a high fire danger period from July through September. These conditions collectively define the natural hazard environment that Declo residents and property owners must navigate.

According to FEMA's National Risk Index, Declo carries an overall risk score of 5.6/10, placing it in the moderate category. Volcanic activity is the foremost natural hazard, with the area situated near active volcanic systems capable of producing lava flows, ashfall, and pyroclastic hazards. The area also faces notable exposure to wildfire and avalanche.

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

With a moderate risk rating, Declo residents are well-served by maintaining standard preparedness practices — an emergency supply kit, awareness of local hazard seasonality, and insurance that covers the top local risks. Periodic review of coverage for volcano is recommended.