High Risk California  ·  Earthquake / Wildfire

Santa Clara County CA

EMERGENCY PREPAREDNESS & DISASTER RISK PROFILE  ·  LAST UPDATED: Mar 2026

7/ 10
Threat Score
Population
1927852
Area
1291
sq miles
Primary Hazard
Earthquake / Wildfire
FEMA Disasters
44
federally declared

Santa Clara County in Silicon Valley sits near the San Andreas Fault and experienced the devastating 1989 Loma Prieta earthquake. The county also faces wildfire risk in the Santa Cruz Mountains and Diablo Range. Its dense urban population and critical tech infrastructure make earthquake preparedness especially high-stakes.

// Risk Intelligence

Threat Score 7 / 10    High Risk
Primary Hazard Earthquake / Wildfire
Secondary Hazard Flooding
FEMA Flood Zone Zone X (Seismic High Risk)
Federally Declared Disasters 44
Last Major Event Loma Prieta Earthquake (1989)
Event Frequency Major event every 4–6 years

// Emergency Operations

Emergency Mgmt Phone (408) 808-7800
Emergency Shelters 55 designated facilities
Evacuation Routes US-101 South, I-280 North, I-880 North, SR-85

// Recommended Preparedness Gear

Based on Santa Clara County CA's primary hazard profile (Earthquake / Wildfire), the following gear is recommended for a High risk area.

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// County Profile

County Santa Clara County CA
State California (CA)
Population 1927852
Area 1291 sq miles
FEMA Region Zone X (Seismic High Risk)

// Other California Counties