AnswerYes, Boise, Idaho is located in Ada County.
Boise County 6B
The Total area of Boise County Idaho is, 1,902 sq mi,(4,926 km sq)
Idaho County Idaho was established in 1864.
Ada county. it has boise in it.
Bonneville County Idaho was established in 1911.
Butte County Idaho was established in 1917.
Boundary County Idaho was established in 1915.
Canyon County Idaho was established in 1892.
Caribou County Idaho was established in 1919.
Cassia County Idaho was established in 1879.
Clark County Idaho was established in 1919.