sentences:  The population density was 1,454.6 people per square mile (561.6/km²).There were 17,707 housing units at an average density of 710.2 per square mile (274.2/km²).The racial makeup of the city was 78.39% White, 19.20% Black or African American, 0.24% Native American, 0.62% Asian, 0.03% Pacific Islander, 0.54% from other races, and 0.97% from two or more races.