Housing & Residential Life (Housing), a self-funded auxiliary housed within Campus Life at the University of Arizona, operates 23 dorms and one graduate apartment complex that house over 7,800 students annually on the University of Arizona Main Campus. More than 80% of on-campus residents are first-year students. Our dorms range in style from historic to modern and range in size from 60 to 800 residents. While the University does not require students to live on campus, more than 70% of all incoming first-year students choose to live in UA housing to help their transition to university life.