Moderate Risk California  ·  Wildfire / Earthquake

Solano County CA

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

6/ 10
Threat Score
Population
447
Area
821
sq miles
Primary Hazard
Wildfire / Earthquake
FEMA Disasters
6
federally declared

Solano County between the Bay Area and Sacramento faces serious wildfire risk — the 2020 LNU Lightning Complex burned through the county's hills. Travis Air Force Base is located in Solano County and is the largest air base by area in the continental US and a primary air mobility hub for US forces in the Pacific. The county sits on active fault systems including the Concord-Green Valley and West Napa Faults. Solano County's hills create wind-driven wildfire corridors toward Fairfield and Vacaville.

// Recommended Supplies

Essential gear for power outages, severe weather, and emergency situations in your area.

// Risk Intelligence

Threat Score 6 / 10    Moderate Risk
Primary Hazard Wildfire / Earthquake
Secondary Hazard Flash Flooding
FEMA Flood Zone Moderate
Federally Declared Disasters 6
Last Major Event 2020 LNU Lightning Complex
Event Frequency Annual

// Emergency Operations

Emergency Mgmt Phone (707) 784-6765
Emergency Shelters 12 designated facilities
Evacuation Routes I-80 I-680 CA-12 CA-37

// County Profile

County Solano County CA
State California (CA)
Population 447
Area 821 sq miles
FEMA Region Moderate

// Major Cities

Vacaville CA Fairfield CA Vallejo CA

// Cities in This County

// Other California Counties

// Nearby Infrastructure Risks

Critical infrastructure facilities within or near this area that could affect civilian safety during emergencies, conflict, or infrastructure failures.

🌊
Sacramento San Joaquin Delta Levee System CA
Major Dam  ·  Sacramento, CA  ·  California DWR  ·  10-mi risk zone
10/10 High
Travis Air Force Base CA
Military Installation  ·  Fairfield, CA  ·  US Air Force  ·  25-mi risk zone
7/10 High

Infrastructure risk data is for emergency preparedness awareness. Facility locations are publicly known. Always follow official emergency guidance.