Originally from Naperville, Illinois, Scott grew up in Chicago, Illinois. She first became interested in pornography at age 11 when, after her mother put cable in her room, Scott would watch Cinemax late at night. During high school, she dated a fellow female student and didn't have sex with a man until age 16.

She worked for a time in a bank after graduating high school, but became bored with it and resented having to wear formal attire and remove her body piercings.

Scott was married for six months after graduating from high school.

She moved to Los Angeles in 2004 to enter the adult film industry. After acting in numerous gonzo films which featured her performances in anal sex scenes, she starred in the larger budgeted feature Darkside with Penny Flame in 2005. At the AVN Awards 2006, Scott won awards for "Best Oral Sex Scene - Film" and "Best Group Sex Scene - Film" for her role in Darkside. She also was awarded the XRCO Awards for "Best New Starlet" and "Orgasmic Oralist" on April 20, 2006. Scott often uses dirty talk in her scenes, and works without condoms in all her boy/girl scenes.

On May 15, 2006, she was the first ever guest on the Sirius Satellite Radio show Inside the Porn Actors Studio. Hosted by Howard Stern Show contributor Richard Christy, the hour-long program was Sirius channel Howard 101's spoof of the television series Inside the Actors Studio, with Christy filling the James Lipton role.

Scott replaced Jessica Sweet in the role of "Britney Rears" for the movie Britney Rears 3: Britney Gets Shafted.

Note: Official Porn Star Website of Hillary Scott.