The largest county in Idaho is Idaho County, it is 8,485 sq mi, the county seat is Grangeville, and it is located in central Idaho.
Ada County is the most populous county in Idaho, with an estimated 392,365 people.
Ada County
Ada County is Idaho's largest county based on population with a population of 392,365 as of the 2010 Census.
The most populated county in Idaho is Ada County, with a population of more than 390,000.
Ada county. it has boise in it.
* Ada, Adams * Bannock, Bear Lake, Benewah, Bingham, Blaine, Bonner, Booneville, Boundary * Camas, Canyon, Caribou, Cassia, Clark, Clearwater, Custer * Elmore * Franklin, Freemont * Gem, Gooding * Idaho * Jefferson, Jerome * Kootenai * Latah, Lemhi, Lewis, Lincoln * Madison, Minidokka * Nez Perce * Oneida, Owyhee * Payette, Power * Shoshone * Teton, Twin Falls * Valley and * Washington.
The second largest city in Idaho is Nampa. It is located in Canyon County and has a population of around 100,000 residents.
Area: * Idaho County - 8,485 sq mi * Owyhee County - 7,678 sq mi * Custer County - 4,926 sq mi Population: * Ada County - 300,904 * Canyon County - 131,441 * Kootenai County - 108,685
Idaho County Idaho was established in 1864.
Benewah County Idaho was established in 1915.
As of the 2000 Census, the population of Idaho County Idaho is, 15,511.
Sandpoint is a large town in Bonner County, Idaho.