As of the census of 2000, there were 20,339 people in the city, organized into 8,628 households and 5,228 families. The population density was 1,700.8 people per square mile (656.6/km). There were 9,419 housing units at an average density of 787.6 per square mile (304.1/km). The racial makeup of the city was 88.6% White, 5.0% African American, 0.4% Asian, 0.4% Native American, <0.1% Pacific Islander, 3.8% from other races, and 1.9% from two or more races. 5.6% of the population were Hispanic or Latino of any race.