At the 2000 census, there were 19,999 people in 8,193 households, including 5,776 families, in the borough. The population density was 3,465.5 people per square mile (1,338.2/km²). There were 8,883 housing units at an average density of 1,539.3 per square mile (594.4/km²). The racial makeup of the borough was 96.20% White, 2.42% African American, 0.05% Native American, 0.56% Asian, 0.01% Pacific Islander, 0.17% from other races, and 0.61% from two or more races. Hispanic or Latino of any race were 0.65% of the population.