San Luis Arizona sits on the US-Mexico border at one of the busiest pedestrian crossing points in the American Southwest, directly across from San Luis Rio Colorado, Sonora. The city is in Yuma County — one of the hottest regions in the US with summer temperatures routinely exceeding 115°F. San Luis experiences significant border security activity and drug smuggling through documented tunnel systems. Water security is a critical concern given the Colorado River allocation issues affecting the entire Yuma region.
// Preparedness Recommendations
- Ensure access to cooling or backup power.
- Store additional drinking water.
- Avoid outdoor activity during peak heat.
- Check on vulnerable individuals.
// 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 | Border Security / Extreme Heat / Water |
| FEMA Flood Zone | Moderate |
| County FEMA Declarations | 7 |
| Last Major Event | 2021 Extreme Heat |
// Emergency Information
| Emergency Phone | 928-341-8555 |
| Evacuation Routes | State and US highways |
| Elevation | 125 ft above sea level |
// County Risk Profile
Yuma County AZ
Arizona · Extreme Heat / Flash Flooding
View full county emergency preparedness profile →
6/10
Moderate Risk