Benewah County Idaho was established in 1915.
The Cherokee County was established in the year of 1846. The Cherokee County was established in the Nacogdoches County and was organized in the same year.
Bonner County Idaho was established in 1907.
Camas County was established in 1917.
Fermont County Idaho was established in 1893.
Bannock County Idaho was established in 1893.
Bingham County was established in 1885.
Ada County was Established in 1864.
Franklin County Idaho was established in 1913.
Bonneville County Idaho was established in 1911.
Butte County Idaho was established in 1917.
Canyon County Idaho was established in 1892.