| Voting Statistics | |||||
|---|---|---|---|---|---|
| Counties | Total Number of Registered Voters at Cutoff | Number Election Day Registrants | Total Number of Registered Voters | Number of Ballots Cast | % of Registered Voters That Voted | 
| Ada | 230,425 | 40,131 | 270,556 | 202,971 | 75.0 % | 
| Adams | 2,527 | 320 | 2,847 | 2,237 | 78.6 % | 
| Bannock | 41,309 | 6,546 | 47,855 | 34,388 | 72.7 % | 
| Bear Lake | 3,318 | 340 | 3,658 | 3,048 | 83.3 % | 
| Benewah | 4,966 | 480 | 5,446 | 4,320 | 79.3 % | 
| Bingham | 19,283 | 2,792 | 22,075 | 16,965 | 76.9 % | 
| Blaine | 12,032 | 2,034 | 14,066 | 11,073 | 78.7 % | 
| Boise | 4,494 | 453 | 4,947 | 3,879 | 78.4 % | 
| Bonner | 23,767 | 2,993 | 26,760 | 21,586 | 80.7 % | 
| Bonneville | 49,055 | 8,965 | 58,020 | 45,024 | 77.6 % | 
| Boundary | 5,858 | 553 | 6,411 | 5,348 | 83.4 % | 
| Butte | 1,478 | 129 | 1,607 | 1,265 | 78.7 % | 
| Camas | 673 | 74 | 747 | 610 | 81.7 % | 
| Canyon | 84,351 | 17,056 | 101,407 | 74,648 | 73.6 % | 
| Caribou | 3,573 | 413 | 3,986 | 3,101 | 77.8 % | 
| Cassia | 9,404 | 1,472 | 10,876 | 8,324 | 76.5 % | 
| Clark | 363 | 28 | 391 | 296 | 75.7 % | 
| Clearwater | 4,514 | 487 | 5,001 | 3,865 | 77.3 % | 
| Custer | 2,818 | 228 | 3,046 | 2,489 | 81.7 % | 
| Elmore | 10,121 | 1,637 | 11,758 | 8,689 | 73.9 % | 
| Franklin | 6,242 | 703 | 6,945 | 5,644 | 81.3 % | 
| Fremont | 6,553 | 734 | 7,287 | 5,803 | 79.6 % | 
| Gem | 9,205 | 1,356 | 10,561 | 8,140 | 77.1 % | 
| Gooding | 5,996 | 717 | 6,713 | 5,317 | 79.2 % | 
| Idaho | 9,466 | 783 | 10,249 | 8,517 | 83.1 % | 
| Jefferson | 13,326 | 1,410 | 14,736 | 11,666 | 79.2 % | 
| Jerome | 7,712 | 1,338 | 9,050 | 6,946 | 76.8 % | 
| Kootenai | 77,885 | 10,301 | 88,186 | 67,952 | 77.1 % | 
| Latah | 21,817 | 4,434 | 26,251 | 18,921 | 72.1 % | 
| Lemhi | 4,794 | 278 | 5,072 | 4,183 | 82.5 % | 
| Lewis | 1,996 | 198 | 2,194 | 1,648 | 75.1 % | 
| Lincoln | 2,033 | 324 | 2,357 | 1,802 | 76.5 % | 
| Madison | 17,373 | 4,954 | 22,327 | 16,148 | 72.3 % | 
| Minidoka | 7,704 | 1,334 | 9,038 | 6,983 | 77.3 % | 
| Nez Perce | 20,133 | 2,739 | 22,872 | 17,792 | 77.8 % | 
| Oneida | 2,500 | 244 | 2,744 | 2,120 | 77.3 % | 
| Owyhee | 4,693 | 753 | 5,446 | 4,020 | 73.8 % | 
| Payette | 10,216 | 1,863 | 12,079 | 8,884 | 73.5 % | 
| Power | 3,322 | 384 | 3,706 | 2,841 | 76.7 % | 
| Shoshone | 6,610 | 564 | 7,174 | 5,302 | 73.9 % | 
| Teton | 5,726 | 816 | 6,542 | 5,121 | 78.3 % | 
| Twin Falls | 34,422 | 6,602 | 41,024 | 30,627 | 74.7 % | 
| Valley | 5,884 | 750 | 6,634 | 5,472 | 82.5 % | 
| Washington | 5,137 | 745 | 5,882 | 4,570 | 77.7 % | 
| TOTAL | 805,074 | 131,455 | 936,529 | 710,545 | 75.87 % |