After the fire, the school opted to relocate from downtown Chandler to a site more centrally located to serve the growing cities of Tempe, Mesa, and Chandler, which would allow the school to increase its enrollment. The school moved into the so-called Tri-City Campus in 1983 (and was even known as "Seton Catholic Tri-City High School" for a time in the 1980s); the former site was converted into a Boys and Girls Club. That fall, the school reached a then-all-time high for enrollment, 259 students.