The Randolph Campus is the home of SPA's Middle and Upper Schools, for students in Grade 6-12. The Middle and Upper Schools each occupy their own wing on the Randolph Campus, reflecting the school's understanding of the different ways students learn and interact with teachers and peers in Grades 6-8 versus Grades 9-12.
The Middle School wing was built in 2000 and was designed specifically around the academic and social needs of young adolescents. Grades 6, 7, and 8 each have their own floors within the Middle School wing, and each grade-level floor has its own classrooms, lockers, and common areas.
The Upper School occupies the original St. Paul Academy building and includes numerous additions that have been built over the last century, including a large and small gymnasium, the two-story library, the dining hall, the Huss Center for the Performing Arts, and the recently completed Hugh K. Schilling Math and Science Center (completed in fall 2018) and the renovated Humanities Wing (completed in spring 2019).
The Randolph Campus is also the home of Drake Arena, SPA's hockey facility, and nearly 30 acres of outdoor space, including 12 tennis courts and 6 athletic fields for soccer, football, baseball, and softball.