Idaho - 979.6 Dewey Decimal Numbers for U.S. States and Counties County Dewey Decimal Number Ada 979.628 Adams 979.626 Bannock 979.647 Bear Lake 979.644 Benewah 979.693 Bingham 979.651 Blaine 979.632 Boise 979.674 Bonner 979.696 Bonneville 979.653 Boundary 979.698 Butte 979.659 Camas 979.631 Canyon 979.623 Caribou 979.645 Cassia 979.639 Clark 979.657 Clearwater 979.688 Custer 979.672 Elmore 979.629 Franklin 979.642 Fremont 979.656 County Dewey Decimal Number Gem 979.627 Gooding 979.636 Idaho 979.682 Jefferson 979.658 Jerome 979.635 Kootenai 979.694 Latah 979.686 Lemhi 979.678 Lewis 979.684 Lincoln 979.634 Madison 979.655 Minidoka 979.633 Nez Perce 979.685 Oneida 979.641 Owyhee 979.621 Payette 979.624 Power 979.649 Shoshone 979.691 Teton 979.654 Twin Falls 979.637 Valley 979.676 Washington 979.625