[5] 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.

[7] That fall, the school reached a then-all-time high for enrollment, 259 students.

[8] Though Seton entered the 1990s at enrollment levels lower than any seen since the new campus, it jumped to 343 students in 1994, when it broke ground on a new gymnasium, and to 493 students—the highest in its history—by 1999.

As the only Catholic high school located centrally enough to serve the area, Seton continued to reap rewards in enrollment growth.

In February 2010, the school broke ground on a new, two-story academic building and black box theater complex, which opened to students in 2011.