Boise is the capital and most populous city of the U.S. state of Idaho and is the county seat of Ada County. On the Boise River in southwestern Idaho, it is 41 miles east of the Oregon border and 110 miles north of the Nevada border. The downtown area's elevation is 2,704 feet above sea level. Its estimated population in 2020 was 240,380. The Boise-Nampa metropolitan area, also known as the Treasure Valley, includes five counties with a combined population... Show more

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