The massive fires have forced road closures guarded by police and sheriffs and residents who remain have to don the masks and respirators because the smoke has made the air quality so poor.
The fires have spread with an erratic intensity that has strained firefighting resources while catching many residents by surprise.
Two deaths at a residence in Los Angeles County were blamed on the Woolsey Fire, according to Cal Fire. "Glad that her animals are okay hopefully you can rebuild a new house soon", another said.
The Woolsey Fire has blackened almost 94,000 acres and was also 30 percent contained as of Monday night, according to the California Department of Forestry and Fire Protection (CalFire).
Entire neighbourhoods were levelled, destroying more than 6700 buildings, nearly all of them homes, and the business district was destroyed by a blaze that threatened to explode again with the same fury that largely incinerated the foothill town.
But when he returned to his house, he found only debris, ashes, and a burned down vehicle.
The flames also burned inland through hills and canyons dotted with modest homes, reached into the corner of the San Fernando Valley in Los Angeles, and stretched into suburbs such as Thousand Oaks, a city of 130,000 people that just a few days ago saw 12 people killed in a mass shooting at a country music bar.
High winds returned on Sunday but fell again Monday morning, with crews managing to carve containment lines around 30 percent of the Camp Fire perimeter, an area encompassing 117,000 acres of scorched, smoldering terrain.
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It is the largest of several infernos that have sent a quarter of a million people fleeing their homes across the tinder-dry state, with winds of up to 100kph fanning the fast-moving flames.
SoCal Edison's report says, "at this point we have no indication from fire agency personnel that SCE utility facilities may have been involved in the start of the fire".
She tweeted: "Completely devastated by the fires affecting my community". "I don't know where she is".
"That is why I am so grateful to all the jurisdictions who are here today".
The Washington Post reported that the historic Paramount Ranch production set in Agoura Hills burned on Friday, while wildfire threatened nearby homes of a slew of celebrities, including Orlando Bloom, Cher, Melissa Etheridge, Lady Gaga, Alyssa Milano, Pink, Will Smith, Guillermo del Toro, Rainn Wilson, James Woods, and Kim Kardashian-West and Kanye West.
"Gods of Egypt" actor Gerard Butler and "Real Housewives" star Camille Grammer also said on social media they had lost homes.
Mr Trump said in a Twitter post: "With proper Forest Management, we can stop the devastation constantly going on in California".