Scott played his senior season at Allentown's Parkland High School in the highly competitive Lehigh Valley Conference, where he compiled 3,853 yards (fourth highest in national high school football history) and 53 touchdowns, both of which stood as Pennsylvania state rushing records into the 2008 season.
In honor of Scott's accomplishments, the school retired his number, 33, the following year. Scott was selected a Parade All-American and a second-team All-American by USA Today. The Associated Press named him first-team all-state and Big School Player-of-the-Year. Scott received the prestigious Jim Henry Award from the Maxwell Football Club as the Philadelphia-area high school "Player of the Year" and won The Allentown Morning Call's "Player of the Year award."