The University of Denver (DU), founed in 1864 is the oldest private university in the Rocky Mountain Region. The University of Denver is a coeducational, four-year university in Denver, Colorado. DU currently enrolls approximately 11,117 students, about equally divided between graduate and undergraduate programs. The 125-acre main campus is a designated arboretum and is located primarily in the University Neighborhood, about seven miles (11 km) south of downtown Denver.