Ada County and Boise face growing wildfire risk as the urban-wildland interface expands across the foothills north of the city. The 2022 fire season threatened communities on Boise's northern edge. The Snake River creates flooding risk and the county sits near active fault systems in the seismically active Basin and Range province. Boise's rapid growth is among the fastest in the nation creating expanding emergency management challenges.
// 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.
- Emergency Food Supplies
- Water Filtration & Storage
- Backup Generator
- Solar Backup Power
* We may earn a commission from qualifying purchases.
// Risk Intelligence
| Threat Score | 5 / 10 Moderate Risk |
| Primary Hazard | Wildfire / Flash Flooding |
| Secondary Hazard | Earthquake |
| FEMA Flood Zone | Zone X (Moderate Risk) |
| Federally Declared Disasters | 26 |
| Last Major Event | Wildfire (August 2022) |
| Event Frequency | Major event every 5–7 years |
// Emergency Operations
| Emergency Mgmt Phone | (208) 577-4750 |
| Emergency Shelters | 18 designated facilities |
| Evacuation Routes | I-84 East, I-84 West, US-20 East, US-26 West |
// County Profile
| County | Ada County ID |
| State | Idaho (ID) |
| Population | 502,153 |
| Area | 1055 sq miles |
| FEMA Region | Zone X (Moderate Risk) |
// Major Cities
// Cities in This County
// Other Idaho Counties
// Nearby Infrastructure Risks
Critical infrastructure facilities within or near this area that could affect civilian safety during emergencies, conflict, or infrastructure failures.
Infrastructure risk data is for emergency preparedness awareness. Facility locations are publicly known. Always follow official emergency guidance.