As of the census of 2000, there were 1,709,434 people, 528,594 households, and 404,374 families residing in the county. The population density was 85 people per square mile (33/km2). There were 601,369 housing units at an average density of 30 per square mile (12/km2). The racial makeup of the county was 58.9% White, 9.1% African American, 1.2% Native American, 4.7% Asian, 0.3% Pacific Islander, 20.8% from other races, and 5.0% from two or more races. 39.2% of the population were Hispanic or Latino of any race. 8.3% were of German, 5.5% English and 5.1% Irish ancestry. 66.1% spoke English, 27.7% Spanish and 1.1% Tagalog as their first language.