As of the census of 2000, there were 401,762 people, 121,236 households, and 87,896 families residing in the county. The population density was 121 people per square mile (47/km2). There were 131,708 housing units at an average density of 40 per square mile (15/km2). The racial makeup of the county was 55.9% White, 3.8% Black or African American, 1.1% Native American, 6.0% Asian, 0.5% Pacific Islander, 27.8% from other races, and 5.0% from two or more races. 46.79% of the population were Hispanic or Latino of any race. 6.3% were of German and 5.4% English ancestry according to Census 2000. 52.9% spoke English, 39.6% Spanish and 1.6% Tagalog as their first language.