Low Risk Idaho  ·  Wildfire / Flash Flooding

Lemhi County ID

EMERGENCY PREPAREDNESS & DISASTER RISK PROFILE  ·  LAST UPDATED: Mar 2026

4/ 10
Threat Score
Population
8
Area
4,570
sq miles
Primary Hazard
Wildfire / Flash Flooding
FEMA Disasters
5
federally declared

Lemhi County ID in Idaho faces wildfire / flash flooding risk across its 4,570 square mile area. Salmon on the Salmon River serves this remote east-central Idaho county. Lemhi serves as the county seat and regional emergency coordination hub.

// Preparedness Recommendations

  • Evacuation routes inland should be identified in advance.
  • Store at least 72 hours of food and water.
  • Elevate critical belongings above flood level.
  • Have backup power ready in case of grid failure.

// Recommended Supplies

Essential gear for power outages, severe weather, and emergency situations in your area.

// Risk Intelligence

Threat Score 4 / 10    Low Risk
Primary Hazard Wildfire / Flash Flooding
Secondary Hazard Winter Storm
FEMA Flood Zone Low
Federally Declared Disasters 5
Last Major Event 2021 Wildfire
Event Frequency Annual

// Emergency Operations

Emergency Mgmt Phone (208) 756-2815
Emergency Shelters 2 designated facilities
Evacuation Routes State and US highways

// County Profile

County Lemhi County ID
State Idaho (ID)
Population 8
Area 4,570 sq miles
FEMA Region Low

// Other Idaho Counties