|High School:||Squalicum HS|
As a freshman, King competed in all breakstroke events for the Tigers having top-five finishes on the team in the 50 breast (27.61), 100 breast (55.46), and 200 breast (2:03.69). Had his best finish in the 100 breast event at the MPSF Championships. Also participated in the 50 free (21.25) and 200 IM (1:53.53).
Held a 3.5 GPA while attending Squalicum High School.
King is the son of Bruce and Crystal King. Rowan has two older siblings: Cambrah and Shiloh.