Hundreds of people remain missing as at least 22 fires rampaged across the state's famous wine country.
More than 8,000 firefighters are now battling the flames.
The wildfires have destroyed more than 3,500 buildings and homes over 170,000 acres (68,800 hectares) and displaced about 25,000 people.
Fifteen people are now confirmed killed in Sonoma County, with another eight in Mendocino County, four in Yuba County and two in Napa County, officials said.
