The University of Minnesota (often referred to as the University of Minnesota, Twin Cities, Minnesota, the U of M, UMN, or simply the U) is a public research university in Minneapolis and Saint Paul, Minnesota. The Minneapolis and St. Paul campuses are approximately 3 miles (4.8 km) apart, and the St. Paul campus is actually in neighboring Falcon Heights. It is the oldest and largest campus within the University of Minnesota system and has the sixth-largest main campus student body in the United States, with 50,943 students in 2018-19. It is the flagship institution of the University of Minnesota System, and is organized into 19 colleges and schools, with sister campuses in Crookston, Duluth, Morris, and Rochester.