 There were 159,471 housing units at an average density of .The racial makeup of the county was 90.3% white, 2.4% Asian, 1.1% black or African American, 0.7% American Indian, 0.2% Pacific islander, 2.4% from other races, and 2.8% from two or more races.Those of Hispanic or Latino origin made up 7.1% of the population.