List of museums in Idaho

This list of museums in Idaho contains museums which are defined for this context as institutions (including nonprofit organizations, government entities, and private businesses) that collect and care for objects of cultural, artistic, scientific, or historical interest and make their collections or related exhibits available for public viewing. Museums that exist only in cyberspace (i.e., virtual museums) are not included.

Defunct museums

 * Hess Heritage Museum, Ashton
 * Ketchum Sun Valley Historical Society Heritage & Ski Museum, Ketchum, collections now part of the Wood River Museum of History and Culture
 * Sacajawea Museum at Spalding, former museum near the site of the Spalding Mission whose contents were sold off after a flood in 1963; featured a buckskin dress from Sacajawea, various Nez Perce Chief headdresses including two from the young Chief Joseph, and a dugout canoe from the Lewis and Clark expedition

Regions
The Idaho Department of Commerce tourism division has divided the state into these seven regions which are used in the table above:
 * Northern - Counties: Benewah, Bonner, Boundary, Kootenai, and Shoshone,
 * North Central - Counties: Clearwater, Idaho, Latah, Lewis, and Nez Perce
 * Southwest - Counties: Ada, Adams, Boise, Canyon, Elmore, Gem, Owyhee, Payette, Valley, and Washington
 * Central - Counties: Blaine, Butte, Camas, Custer, and Lemhi
 * South Central - Counties: Cassia, Gooding, Jerome, Lincoln, Minidoka, and Twin Falls
 * East - Counties: Bingham, Bonneville, Clark, Fremont, Jefferson, Madison, and Teton
 * Southeastern - Counties: Bannock, Bear Lake, Caribou, Franklin, Oneida, and Power