Morant attended Crestwood High School in Sumter, South Carolina.[3] He grew from 5 ft 9 in (1.75 m) to 6 ft 0 in (1.83 m) in his first three years with the team.[1] Morant left as its all-time leading scorer, with 1,679 points, and scored a career-high 47 points against Sumter High School.[3][10] In his last two seasons at Crestwood, he averaged 27 points, 8 rebounds, and 8 assists per game, earning South Carolina Class 3A All-State honors both years. Morant also left high school as a three-time All-Region Most Valuable Player (MVP).[3] He could not dunk until he was a senior.[8]