Natural Disaster Risk in Lewis County
Idaho
Risk Summary for Lewis County
Lewis County scores 3.6/10 (Low risk), below the U.S. average of 4.5. The leading hazard is Avalanche.
Top Hazards
All 18 Hazard Scores
How it compares
Live Conditions
🏠 What this means for insurance
Below-average risk — standard coverage likely adequate
Natural disaster risk here is below the US average. Standard homeowners insurance will typically be sufficient, but it is still worth reviewing exclusions for floods and earthquakes.
This is general information only. Consult a licensed insurance professional for advice specific to your property.
Natural Hazard Profile: Lewis County, Idaho
Lewis 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.
Lewis County's overall natural disaster risk is rated 3.6/10 (Low) 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 wildfire and tsunami.
Within Idaho, Lewis County's risk is, slightly below the 5.1/10 state average. Nationally, it ranks below the U.S. national average of 4.5/10. FEMA's analysis of Lewis County identifies avalanche as the foremost hazard, followed by wildfire and tsunami. These rankings reflect the relative frequency and severity of each hazard type in the local environment.
Despite its lower-than-average risk classification, Lewis County is not immune to natural hazards. Basic preparedness — an emergency kit, awareness of seasonal risks, and property insurance that covers avalanche — remains prudent for all residents.
What this means for Lewis County: Avalanche preparedness
- Properties in runout zones may require specialized hazard assessment and insurance.
- Check avalanche forecasts before backcountry travel and carry a beacon, probe, and shovel.
- Be aware of slope angles and recent snow loading, which drive avalanche risk.
Cities in Lewis County
ZIP codes in Lewis County
Data source: FEMA National Risk Index (NRI). Scores normalized to 1–10 across all US counties. For informational purposes only.