Investigators were trying to determine whether the dogs were involved in the attack.
A 29-year-old man from the house was arrested on suspicion of cultivating marijuana.
It was unclear whether the dogs that attacked the woman had collars or owners.
“In these areas, you might have a situation where people dump animals out in rural areas,” said John Mlynar, a spokesman for the nearby city of Palmdale. He added that he’d never heard of an attack like Thursday’s.
Residents who live near the site of the attack said stray dogs are constantly roaming the area and have attacked people before.
“It’s really scary,” Diane Huffman, of Littlerock, told KABC-TV. “I don’t know what to think. I really think I’m going to be getting a gun to protect myself.”