 There were 5,036 housing units at an average density of 345.7 per square mile (133.5/km²).The racial makeup of the city was 96.1% White, 0.4% African American, 0.1% Native American, 0.6% Asian, 0.03% Pacific Islander, 1.9% from other races, and 0.9% from two or more races.There were 4,702 households out of which 28.6% had children under the age of 18 living with them, 51.0% were married couples living together, 9.3% had a female householder with no husband present, and 37.0% were non-families.