Benewah County Idaho was established in 1915.
Idaho County Idaho was established in 1864.
The total area of Gem County Idaho is, 563 sq mi, (1,459 km sq).
As of the 2000 Census, the population of Gen County Idaho is, 15,181.
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.
Clearwater County Idaho was established in 1911.