San Joaquin County in the Central Valley sits at the delta of the Sacramento-San Joaquin River system, one of the most complex flood-risk areas in the western United States. The county's extensive levee network is considered aging and inadequate for a major flood event. The 1997 flood caused catastrophic damage across the delta communities.
// Risk Intelligence
| Threat Score | 7 / 10 High Risk |
| Primary Hazard | Flooding / Earthquake |
| Secondary Hazard | Wildfire |
| FEMA Flood Zone | Zone AE (High Risk) |
| Federally Declared Disasters | 44 |
| Last Major Event | Great Flood (1997) |
| Event Frequency | Major event every 4–6 years |
// Emergency Operations
| Emergency Mgmt Phone | (209) 468-3980 |
| Emergency Shelters | 28 designated facilities |
| Evacuation Routes | I-5 North, I-205 West, SR-99 North, SR-4 East |
// Recommended Preparedness Gear
Based on San Joaquin County CA's primary hazard profile (Flooding / Earthquake), the following gear is recommended for a High risk area.
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// County Profile
| County | San Joaquin County CA |
| State | California (CA) |
| Population | 779233 |
| Area | 1399 sq miles |
| FEMA Region | Zone AE (High Risk) |
// Other California Counties
San Francisco County CA
Earthquake / Tsunami
8/10
High
Stanislaus County CA
Flooding / Wildfire
6/10
Moderate
Orange County CA
Wildfire / Earthquake
7/10
High
Contra Costa County CA
Earthquake / Wildfire
7/10
High
Fresno County CA
Wildfire / Extreme Heat
6/10
Moderate
San Bernardino County CA
Wildfire / Earthquake
8/10
High