The incident happened shortly before 6:30 p.m. Friday in the 10400 block of Thienes Avenue.
Investigators say the woman had just arrived at her home when she heard her dogs barking in her back yard. When she opened the back door to see what was going on, the suspect attacked her.
Capt. Chris Nee with the sheriff's department said the suspect "savagely assaulted" the woman with his fists, causing substantial injuries to her face. Nee said the suspect then knocked her to the ground, bound her arms and legs and dragged her to the bedroom.
The suspect searched the house for anything of value, and then returned to the bedroom to ask the victim where she kept money in the home. When the victim said there was money in a detached garage, the suspect exited the home and headed there to search for cash.
Nee said that's when the victim's husband pulled into the driveway. Officials believe the suspect saw this and fled the scene on foot.
"I come here, I don't see him," said the woman, who did not want to be identified.
The woman, who is in her mid-30s, was taken to an area hospital to be treated for her injuries. She has since been released and expected to be OK.
Authorities described the suspect as a Hispanic man in his late 20s, about 5-feet-8 inches tall, weighing 160 to 180 pounds with black hair and brown eyes. He was last seen wearing a black hooded sweatshirt and dark jeans.
Anyone with information that could help investigators track down the suspect is urged to contact the Los Angeles County Sheriff's Department's Temple Station at (626) 285-7171