As of the census of 2000, there were 18,101 people, 7,231 households, and 4,743 families living in the city. The population density was 1,670.3 people per square mile (644.7/km). There were 7,709 housing units at an average density of 711.4 per square mile (274.6/km). The racial makeup of the city was 93.40% White, 1.02% African American, 0.30% Native American, 1.43% Asian, 0.05% Pacific Islander, 2.93% from other races, and 0.86% from two or more races. Hispanic or Latino of any race were 4.85% of the population.