San Ysidro California hosts the San Ysidro Port of Entry — the busiest land border crossing in the western hemisphere, processing tens of thousands of daily crossings between San Diego and Tijuana. The community experienced one of the worst mass shootings in US history in 1984 at a McDonald's restaurant. The Tijuana River corridor creates significant flooding risk and carries untreated sewage that has caused ongoing environmental and public health crises in Imperial Beach and San Ysidro. The Rose Canyon Fault creates local earthquake risk.
// 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 | 6 / 10 Moderate |
| Primary Hazard | Border Security / Earthquake / Flooding |
| FEMA Flood Zone | Zone X (Seismic High Risk) |
| County FEMA Declarations | 58 |
| Last Major Event | Cedar Fire (2003) |
// Emergency Information
| Emergency Phone | 619-424-0475 |
| Evacuation Routes | I-5 North, I-15 North, I-8 East, SR-76 East |
| Elevation | 10 ft above sea level |
// County Risk Profile
San Diego County CA
California · Wildfire / Earthquake
View full county emergency preparedness profile →
8/10
High Risk
// Other Cities in San Diego County CA
Coronado CA
Military / Naval / Terrorism / Earthquake
8/10
High
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Military / Industrial / Earthquake / Border
7/10
High
Vista CA
Military / Wildfire / Earthquake
6/10
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Carlsbad CA
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High
El Cajon CA
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7/10
High