| United States Senator | ||||
|---|---|---|---|---|
| DEM | DEM | REP | REP | |
| Counties | William Bryk | Nels Mitchell | Jeremy "T" Anderson | Jim Risch |
| Ada | 2,823 | 6,303 | 5,491 | 24,126 |
| Adams | 18 | 39 | 148 | 549 |
| Bannock | 1,164 | 1,884 | 1,616 | 6,124 |
| Bear Lake | 19 | 41 | 308 | 900 |
| Benewah | 52 | 168 | 164 | 582 |
| Bingham | 126 | 179 | 1,276 | 4,341 |
| Blaine | 142 | 499 | 156 | 871 |
| Boise | 34 | 83 | 350 | 916 |
| Bonner | 171 | 425 | 1,022 | 3,878 |
| Bonneville | 204 | 416 | 2,261 | 8,557 |
| Boundary | 56 | 117 | 405 | 1,274 |
| Butte | 16 | 30 | 177 | 557 |
| Camas | 0 | 2 | 68 | 206 |
| Canyon | 447 | 781 | 2,965 | 12,506 |
| Caribou | 27 | 31 | 384 | 1,180 |
| Cassia | 7 | 34 | 622 | 2,211 |
| Clark | 3 | 4 | 65 | 164 |
| Clearwater | 54 | 134 | 150 | 566 |
| Custer | 13 | 46 | 274 | 829 |
| Elmore | 83 | 177 | 503 | 1,671 |
| Franklin | 10 | 30 | 453 | 1,176 |
| Fremont | 18 | 43 | 581 | 2,006 |
| Gem | 62 | 105 | 506 | 2,051 |
| Gooding | 62 | 92 | 325 | 1,364 |
| Idaho | 78 | 248 | 609 | 2,417 |
| Jefferson | 19 | 58 | 939 | 3,271 |
| Jerome | 28 | 70 | 399 | 1,523 |
| Kootenai | 376 | 1,510 | 1,627 | 10,152 |
| Latah | 200 | 879 | 320 | 1,340 |
| Lemhi | 41 | 74 | 419 | 1,472 |
| Lewis | 29 | 64 | 102 | 389 |
| Lincoln | 20 | 27 | 141 | 545 |
| Madison | 20 | 46 | 813 | 3,086 |
| Minidoka | 45 | 78 | 591 | 2,014 |
| Nez Perce | 186 | 649 | 381 | 1,572 |
| Oneida | 8 | 24 | 142 | 378 |
| Owyhee | 34 | 46 | 211 | 1,007 |
| Payette | 91 | 137 | 563 | 2,354 |
| Power | 80 | 123 | 161 | 559 |
| Shoshone | 142 | 369 | 137 | 451 |
| Teton | 115 | 297 | 242 | 775 |
| Twin Falls | 170 | 358 | 1,247 | 5,010 |
| Valley | 46 | 111 | 224 | 931 |
| Washington | 39 | 77 | 401 | 1,358 |
| TOTAL | 7,378 | 16,908 | 29,939 | 119,209 |
| Plurality | 9,530 | 89,270 | ||
| Percentage | 30.4 % | 69.6 % | 20.1 % | 79.9 % |