 The population density was 1,668.1 people per square mile (643.6/km²).There were 4,066 housing units at an average density of 727.9 per square mile (280.8/km²).The racial makeup of the city was 93.63% White, 0.84% African American, 0.34% Native American, 0.61% Asian, 3.52% from other races, and 1.06% from two or more races.