Postgraduates 11,028 [ 2 ] Location Philadelphia , Pennsylvania , United States Campus Urban, 992 acres (4.01 km 2 ) total: 300 acres (1.2 km 2 ), University City campus; 600 acres (2.4 km 2 ), New Bolton Center ; 92 acres (0.37 km 2 ), Morris Arboretum Colors Red and blue           [ 3