Rutgers University in New Brunswick, New Jersey has the largest residence hall system in the United States. 16,429 students live within a myriad of housing options, including apartments, suites and graduate housing. Freshmen are guaranteed on-campus housing to live on the 39,950+ student campus for at least their first year. Watterson Towers at Illinois State University are among the tallest residence halls in the world. The 28-story complex, which was built in 1967 holds over 2,200 students and its buildings are 91 meters tall.