 The population density was 11,632.5 people per square mile (4,472.2/km2).There were 4,906 housing units at an average density of 4,927.0 per square mile (1,894.2/km2).The racial makeup of the borough was 87.60% White, 2.67% African American, 0.09% Native American, 4.98% Asian, 0.02% Pacific Islander, 2.32% from other races, and 2.31% from two or more races.