[3] It is the main component of the wider Boise–Mountain Home–Ontario, ID–OR Combined Statistical Area, which adds Elmore and Payette counties in Idaho and Malheur County, Oregon.Nearly 40 percent of Idaho's total population lives in the area.As of the 2021 estimate, the Boise–Nampa, Idaho Metropolitan Statistical Area (MSA) had a population of 795,268,[4] while the larger Boise City–Mountain Home–Ontario, ID–OR Combined Statistical Area (CSA) had a population of 850,341.As of the 2010 census, there were 616,561 people, 170,291 households, and 120,118 families residing within the MSA.The racial makeup of the MSA was 89.80% White, 0.52% African American, 0.80% Native American, 1.38% Asian, 0.14% Pacific Islander, 5.02% from other races, and 2.35% from two or more races.