As of the 2000 Census, the population of Payette County Idaho is, 20,578.
The total area of Payette County Idaho is, 408 sq mi, (1,057 km sq).
The address of the Payette County Historical Society Inc is: Po Box 696, Payette, ID 83661
Clark County is Idaho's smallest county based on population with a population of 982 as of the 2010 Census. Payette County is Idaho's smallest county based on area with 408 square miles.
Benewah County Idaho was established in 1915.
Idaho County Idaho was established in 1864.
Adams County Idaho was Established in 1911.
Blaine County Idaho was established in 1895.
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.