were 490,659 housing units at an average density of 4,507.4/km? (11,674.8/sq?mi). The racial makeup of the borough was 35.64% Black or African American , 14.5% White , 0.85% Native American , 3.01% Asian , 0.10% Pacific Islander , 24.74% from other races , and 5.78% from two or more races. 48.38%