 During the 2006 fall semester , 20 @.@ 5 percent of the student body lived on campus in one of two distinct housing sections located on opposite ends of campus . Both the Northside and Southside areas contain student dormitories , also known as residence halls . While some halls are single @-@ sex , others are co @-@ educational . Usually students of different genders live on alternate floors , although some halls are segregated by room or suite . Residence hall styles vary . Many halls offer only indoor access to individual rooms , but other halls locate room entrances on an outdoor balcony . Room sizes vary by building . Halls with larger rooms include en @-@ suite or private bathrooms , while halls with smaller rooms have a common bathroom on each floor . Several halls include a " substance @-@ free " floor , where residents pledge to avoid bringing alcohol , drugs , or cigarettes into the hall . 
