The Thomas Fire was a massive wildfire that affected Ventura and Santa Barbara Counties , and one of multiple wildfires that ignited in Southern California in December 2017 . It burned approximately , becoming the largest wildfire in modern California history , before it was fully contained on January 12 , 2018 . The Thomas Fire destroyed at least 1,063 structures , while damaging 280 others ; and the fire caused over $ 2.176 billion ( 2018 USD ) in damages , including more than $ 204.5 million in suppression costs , becoming the seventh-most destructive wildfire in state history . The agriculture industry suffered at least $ 171 million in losses due to the Thomas Fire
multiple wildfires
December 2017 Southern California wildfires
Ventura County, California