Ada County is located in southwestern Idaho. The County Seat is Boise and the largest city is Boise. https://adacounty.id.gov/ The 2014 population estimate is 426,236 and the 2010 census population was 392,365. The land area is 1,052.58 square miles and there are 372.8 persons per square mile.
92.5% of the population is White, 1.3% is Black or African American, 7.5% is Hispanic or Latino, 2.6% is Asian, 0.8% is American Indian or Alaska Native, 0.2% is Native Hawaiian or Pacific Islander, and 2.6% is two or more races. 93.6% have a high school degree or higher, and 36% have a Bachelor degree or higher.
The median home value is $183,600, there are 151,600 households, an average of 2.60 persons per household. The per capita income is $27,452, the median household income is $55,210, and 13.1% of the persons in Ada County are considered below poverty level.
The total number of firms, at last estimate, was 42,344. Retail sales (in $1000) were $5,855,102, and sales per capita were $15,720. The percentage of black-owned firms is 0.4%, and the percentage of women-owned firms is 25.4%.
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