Ada County, ID
Ada County is the most populous county in Idaho, with an estimated population of 469,966. Founded on December 22, 1864, Ada County is home to Boise - the capital of Idaho. Ada County was named in honor of Ada Riggs, a pioneer. Fun fact: the World's Largest Potato, which tours the country on a truck, spends its winters in Ada County.
Bannock County, ID
Bannock County was founded on March 6, 1893 and named in honor of the regions first inhabitants, the Bannock Indians. The county is located in the southeastern part of Idaho, and has an estimated population of 87,138. The largest city within its boundaries is Pocatello, sometimes known as the “Gateway to the Northwest”.
Bonneville County, ID
Established on February 7, 1911, Bonneville County is the fourth most populous county in the state. The estimated population is 116,854. The county was named after Benjamin Bonneville (1796-1878), who was an Army Officer, fur trapper, and American West explorer. Idaho Falls is the county seat, as well as the largest city within county boundaries.
Canyon County, ID
Named for the Boise River canyon near Caldwell, Canyon County (also known as 2C) is the second most populous county in the state. An estimated 223,499 people reside within its boundaries, which span 605 square miles. The county is home to four colleges: Caldwell’s College of Idaho, Treasure Valley Community College, Nampa’s Northwest Nazarene University, and College of Western Idaho.
Kootenai County, ID
Kootenai County was established on December 22, 1864. It’s boundaries cover an area of 1,316 square miles and was named for the Kootenai Tribe. 161,505 people reside in the county, making it the third most populous county in the state of Idaho. The tallest living Christmas tree is located in Kootenai County’s largest city, Coeur d’Alene. The tree stands at 162 feet, has 30,000 lights, 2 requires miles of extension cords. The star on top is 12 feet across.