Sierra Fire Protection District Chief Mike Brown said late Sunday that the blaze was 100 percent contained at 1,935 acres, or about three square miles.
Nearly 10,000 people were forced to evacuate early Friday by the unusual, out-of-season blaze that spread by gale force winds and ripped through the Sierra foothills.
Although no official cause has been determined, officials suspect arcing power lines.
Brown says crews worked Sunday on lingering hot spots and repaired areas where vegetation was burned and hillsides damaged by bulldozers in an effort to prevent mudslides.
Officials are cautioning people to be wary of scam artists posing as contractors offering inexpensive repairs.