 The population density was 2,823.9 people per square mile (1,090.1/km²).There were 19,145 housing units at an average density of 924.6 per square mile (356.9/km²).The racial makeup of the city was 89.91% White, 1.61% African American, 0.53% Native American, 2.08% Asian, 0.27% Pacific Islander, 3.09% from other races, and 2.52% from two or more races.