Antioch is a city in Contra Costa CA with a population of 110,000. Primary hazards include earthquake / wildfire / flooding. Residents should maintain emergency preparedness supplies and follow local emergency management guidance.
// 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
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// Risk Intelligence
| Threat Score | 7 / 10 High |
| Primary Hazard | Earthquake / Wildfire / Flooding |
| FEMA Flood Zone | Zone X (Seismic High Risk) |
| County FEMA Declarations | 42 |
| Last Major Event | Diablo Fire (2021) |
// Emergency Information
| Emergency Phone | (925) 779-6900 |
| Evacuation Routes | I-680 South, I-80 West, SR-4 East, SR-24 West |
| Elevation | 36 ft above sea level |
// County Risk Profile
Contra Costa County CA
California · Earthquake / Wildfire
View full county emergency preparedness profile →
7/10
High Risk