As of the census of 2000, there were 18,970 people, 7,173 households, and 4,468 families residing in the city. The population density was 3,475.9 people per square mile (1,341.5/km2). There were 7,449 housing units at an average density of 1,364.9 per square mile (526.8/km2). The racial makeup of the city was 91.48% White, 5.13% African American, 0.24% Native American, 0.90% Asian, 0.03% Pacific Islander, 0.61% from other races, and 1.61% from two or more races. Hispanic or Latino of any race were 1.59% of the population.