
Country: United States of America As Idaho’s capital and largest city, Boise is the state’s main urban hub. It also serves as the county seat of Ada County and had 235,685 residents at the 2020 census. In the Treasure Valley, its metropolitan area spans five Idaho counties and is home to an estimated 846,000 people, making it the state’s most populous metro area and the 95th largest in the United States.
