As of the 2000 United States Census there were 18,110 people, 7,055 households, and 4,670 families residing in the borough. The population density was 6,451.7 people per square mile (2,488.4/km2). There were 7,214 housing units at an average density of 2,570.0 per square mile (991.2/km2). The racial makeup of the borough was 81.99% White, 2.70% African American, 0.04% Native American, 11.34% Asian, 0.03% Pacific Islander, 1.86% from other races, and 2.03% from two or more races. Hispanic or Latino of any race were 8.59% of the population.