Katie St. Ives was born in Sherman Oaks, California. Her mother is Cuban and her father is half Cuban and half German. Katie originally wanted to be a cook while growing up. St. Ives worked as a bagger at both Gelson's Supermarket and Whole Foods Market, as a cashier at Target, and as a waitress at the restaurant Up in Smoke as well as at a call center and at Case Farms in Iowa prior to her involvement in the adult film industry. Katie first began performing in explicit hardcore movies at age twenty in 2009; she has appeared in X-rated features for such notable companies as Elegant Angel, Kick Ass Pictures, Lethal Hardcore, Evil Angel, Digital Sin, and Jules Jordan Video. In 2011 St. Ives was nominated for both an AVN Award for Best New Starlet and an XBIZ Award for New Starlet of the Year. She enjoys hiking and swimming in her spare time.