As of the census of 2000, there were 446,997 people, 145,146 households, and 109,585 families residing in the county. The population density was 299 people per square mile (116/km2). There were 150,807 housing units at an average density of 101 per square mile (39/km2). The racial/ethnic makeup of the county was 69.3% White, 2.6% Black, 4.2% Asian, 1.3% Native American, 0.3% Pacific Islander, 16.8% from other races, and 5.4% from two or more races. 31.7% of the population were Hispanic or Latino of any race. 8.4% were of German, 6.3% English, 6.0% American, 5.5% Irish, and 5.1% Portuguese ancestry according to Census 2000. 67.8% spoke English, 23.7% Spanish, 1.5% Syriac, and 1.3% Portuguese as their first language.