As of the 2010 United States Census, there were 123,143 people, 47,100 households, and 29,862 families living in the county. The population density was . There were 51,697 housing units at an average density of . The racial makeup of the county was 93.8% white, 2.6% Asian, 1.0% black or African American, 0.2% American Indian, 0.5% from other races, and 1.9% from two or more races. Those of Hispanic or Latino origin made up 1.8% of the population. In terms of ancestry, 24.4% were French or French Canadian, 19.7% were Irish, 17.4% were English, 9.5% were Italian, 8.7% were German, 5.2% were American, and 5.0% were Scottish.