Cooper was a four-year member of the Upper Dublin High School team. He was an NISCA All-American each year from 2010-2014. Cooper was also the PIAA State record holder in the 200 medley relay and helped his team to a pair of District Championships. He was a two-time Scholastic All-American in high school and member of the National Honors Society.
Cooper started out the season right by dropping time in all of his events at the Miami Invite. He finished 7th in the 100 breast and 9th in the 200 breast, while recording a personal best time in the 100 fly. Cooper shaved even more time off these bests at NCAAs where he placed 12th in the 100 breast(55.71) and 16th in the 200 breast(2:01.81).