Dewey Decimal Numbers: Idaho
General information about Idaho is found in 979.6. Knowing the Dewey Decimal number for a county or a series of counties within a state makes it easier for a researcher to browse the shelves. The following chart lists Idaho's counties in alphabetical order followed by their Dewey Decimal number.
| Ada | 979.628 | Cassia | 979.639 | Lewis | 979.684 |
| Adams | 979.626 | Clark | 979.657 | Lincoln | 979.634 |
| Bannock | 979.647 | Clearwater | 979.688 | Madison | 979.655 |
| Bear Lake | 979.644 | Custer | 979.672 | Minidoka | 979.633 |
| Benewah | 979.693 | Elmore | 979.629 | Nez Perce | 979.685 |
| Bingham | 979.651 | Franklin | 979.642 | Oneida | 979.641 |
| Blaine | 979.632 | Fremont | 979.656 | Owyhee | 979.621 |
| Boise | 979.674 | Gem | 979.627 | Payette | 979.624 |
| Bonner | 979.696 | Gooding | 979.636 | Power | 979.649 |
| Bonneville | 979.653 | Idaho | 979.682 | Shoshone | 979.691 |
| Boundary | 979.698 | Jefferson | 979.658 | Teton | 979.654 |
| Butte | 979.659 | Jerome | 979.635 | Twin Falls | 979.637 |
| Camas | 979.631 | Kootenai | 979.694 | Valley | 979.676 |
| Canyon | 979.623 | Latah | 979.686 | Washington | 979.625 |
| Caribou | 979.645 | Lemhi | 979.678 |
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Modified: 31 Jul 2008