| Counties | Number Ballots Cast | Absentee Ballots Cast | % Absentee of Total Ballots Cast |
|---|---|---|---|
| Ada | 78,796 | 15,277 | 19.4% |
| Adams | 1,078 | 114 | 10.6% |
| Bannock | 10,672 | 1,817 | 17.0% |
| Bear Lake | 1,530 | 93 | 6.1% |
| Benewah | 1,726 | 164 | 9.5% |
| Bingham | 7,619 | 1,224 | 16.1% |
| Blaine | 3,922 | 143 | 3.6% |
| Boise | 1,765 | 187 | 10.6% |
| Bonner | 11,100 | 2,036 | 18.3% |
| Bonneville | 14,730 | 1,716 | 11.6% |
| Boundary | 2,432 | 587 | 24.1% |
| Butte | 766 | 38 | 5.0% |
| Camas | 250 | 24 | 9.6% |
| Canyon | 27,268 | 3,417 | 12.5% |
| Caribou | 1,308 | 87 | 6.7% |
| Cassia | 3,820 | 373 | 9.8% |
| Clark | 218 | 15 | 6.9% |
| Clearwater | 1,511 | 129 | 8.5% |
| Custer | 1,430 | 171 | 12.0% |
| Elmore | 3,270 | 472 | 14.4% |
| Franklin | 1,409 | 58 | 4.1% |
| Fremont | 3,136 | 259 | 8.3% |
| Gem | 3,743 | 638 | 17.0% |
| Gooding | 2,610 | 350 | 13.4% |
| Idaho | 3,532 | 512 | 14.5% |
| Jefferson | 5,124 | 349 | 6.8% |
| Jerome | 2,707 | 340 | 12.6% |
| Kootenai | 17,607 | 5,098 | 29.0% |
| Latah | 6,286 | 804 | 12.8% |
| Lemhi | 1,531 | 245 | 16.0% |
| Lewis | 1,063 | 49 | 4.6% |
| Lincoln | 844 | 20 | 2.4% |
| Madison | 5,009 | 479 | 9.6% |
| Minidoka | 2,420 | 127 | 5.2% |
| Nez Perce | 4,920 | 707 | 14.4% |
| Oneida | 1,152 | 110 | 9.5% |
| Owyhee | 2,107 | 113 | 5.4% |
| Payette | 3,752 | 483 | 12.9% |
| Power | 1,012 | 25 | 2.5% |
| Shoshone | 1,893 | 103 | 5.4% |
| Teton | 1,874 | 458 | 24.4% |
| Twin Falls | 10,572 | 1,831 | 17.3% |
| Valley | 2,574 | 474 | 18.4% |
| Washington | 2,232 | 393 | 17.6% |
| TOTAL | 264,320 | 42,109 | 15.9% |