population density was 508.0/km² (1,315.8/mi²). There were 13,375 housing units at an average density of 202.8/km² (525.4/mi²). The racial makeup of the city was 92.52% White , 1.45% African American , 0.27% Native American , 0.64% Asian , 0.06% Pacific Islander , 3.20% from other races , and 1.86% from two