Bohannon was a four-year varsity basketball starter and captain for Linn-Mar High School in Marion, Iowa. As a senior, he averaged 25.8 points and 5.3 rebounds per game, leading his team to a 17–6 record and the Class 4A sub-state final. He led Class 4A with 593 points in the season, ranking third in the state, and scored 44 points in his final game, a loss to Cedar Falls High School. Bohannon was named Iowa Mr. Basketball and Iowa Gatorade Player of the Year. He left as Linn-Mar's all-time leader in three-pointers and free throws. Bohannon also played golf for four years in high school.
Recruiting
Bohannon did not have any NCAA Division I offers until playing on the Amateur Athletic Union circuit after his junior season. On August 29, 2015, before his senior year, he committed to play college basketball for Iowa, choosing the Hawkeyes over an offer from Wisconsin. By the end of his high school career, Bohannon was considered a four-star recruit and the top player in Iowa by ESPN.
College career
On February 6, 2017, Bohannon was named Big Ten Conference Freshman of the Week after averaging 16 points, three assists and 2.5 rebounds per game, shooting 69 percent from three-point range, in wins over Rutgers and Nebraska. On March 2, he recorded 11 points and five assists and made a game-winning three-pointer with 9.7 seconds remaining in a 59–57 victory over 21st-ranked Wisconsin. Four days later, he was named Big Ten Freshman of the Week for a second time. Bohannon registered double-doubles in each of his final three games of the season. In the second round of the 2017 Big Ten Tournament, Bohannon posted 24 points and 10 assists in a 95–73 loss to Indiana. In his season finale at the second round of the 2017 National Invitation Tournament, he recorded season-highs of 25 points and 13 assists in a 94–92 overtime loss to TCU. As a freshman, Bohannon averaged 10.9 points, 5.2 assists and 2.2 rebounds per game, earning Big Ten All-Freshman Team honors. He set Iowa freshman single-season records in three-pointers and assists. For much of his sophomore season, Bohannon played through plantar fasciitis in his right foot. On November 22, 2017, he scored a sophomore season-high 30 points, shooting 6-of-8 from three-point range, in a 95–85 win over UAB. He averaged 13.5 points, 5.4 assists and 2.2 rebounds, shooting 43 percent on three pointers, and was an honorable mention All-Big Ten selection by the media. On February 7, 2019, as a junior, he scored a season-high 25 points, including his team's final 11 points, in a 77–72 victory over Indiana. Three days later, Bohannon scored 11 points and made a game-winning three-pointer in an 80–79 win over Northwestern. On February 22, he scored 17 points and made three three-pointers in overtime to help defeat Indiana. In his junior season, Bohannon averaged 11.6 points, 3.4 assists and 2.4 rebounds per game, surpassing Jeff Horner as Iowa's all-time leader in three-pointers. He was selected to the third team All-Big Ten by the coaches and was named honorable mention All-Big Ten by the media. In May 2019, Bohannon underwent surgery on his right hip, which had been causing him pain since the beginning of his junior season. On December 16, after playing 10 games as a senior, he announced that he would undergo season-ending surgery for a left hip injury, which he first noticed about one month after his previous surgery, and would seek a medical redshirt to play another season.
Personal life
Bohannon's father, Gordy, played quarterback for Iowa. Bohannon has three older brothers, Jason, Matt and Zach. Jason earned Iowa Mr. Basketball honors at Linn-Mar High School and played for Wisconsin before a brief professional career in the United States and Germany. Matt played for Northern Iowa, and Zach played for Air Force and Wisconsin.
