Boise, ID is located in Ada County. It is home to 38744 people. The median household income is $42,659.00 (Source: 2000 Census). The average home value was $111,200.00 (Source: 2000 Census). Nearby towns and cities include Meridian, Caldwell, Nampa, Eagle, Kuna. Find listings of real estate for sale in Boise below.