Cosby, 84, is best known for his role as the lovable husband and father in the 1980s television comedy series The Cosby Show, earning him the nickname “America's Dad”. But his family-friendly reputation was shattered after more than 50 women accused him of sexual assaults over nearly five decades.
Huth brought the case under a California law that allows people who claim they were abused as children to file civil cases years later as adults.
Three other women who have accused Cosby of abuse attended the trial and told reporters they felt vindicated by the verdict.
Lili Bernard, who has a civil lawsuit pending against Cosby in New Jersey, said the ruling was “important for every sexual assault survivor who has not received justice”.
“We will never give up,” she said.
The jury did not rule entirely in Huth's favour. By a 9-3 vote, they said she had not provided “clear and convincing evidence” Cosby had acted with “malice, oppression or fraud”.
If jurors had voted yes on that question, they could have provided additional punitive damages to Huth.
In video of a deposition shown to jurors, Cosby said he did not remember Huth. But he said the incident could not have happened because he would not have pursued sexual contact at that time with someone who was under age 18.
Cosby's attorney Jennifer Bonjean challenged Huth's account throughout the trial, including her revised timeline.
When the lawsuit was filed in December 2014, Huth said the incident occurred in 1974, when she was 15. She told jurors she recently concluded she had been mistaken about the year and now believes it happened in 1975.