Archbishop Rummel High School is separated into two separate campuses in order to facilitate the large number of raiders in the Rummel Community.
  Located along Severn Avenue, the Senior High Campus is the larger of the two campuses.  The Gymnasium, cafeteria, Raider Room, Library, Chapel, Admissions Lobby, various computer labs, the Band Room, the Field House, the Guidance Lobby, and the Bookstore are located on this campus.  The Senior High Campus is mainly used for the Sophomores, Juniors, and Seniors, but some Freshmen and Eighth graders have classes on this side.  Most activities throughout the school year take place on the Senior High Campus.
The Junior High Campus is located on North Arnoult Street, across the street from Severn Avenue and beyond the Football field.   The Junior High Campus is home to the newest members of the Rummel Community, the eighth and ninth graders.  This campus contains a spacious computer lab, a reading lab, a large locker room, and a small field house. Almost all classes for eighth and ninth graders are held on this campus.