| DEM | DEM | LIB | REP | REP | REP | REP | REP | REP | |
|---|---|---|---|---|---|---|---|---|---|
| Counties | Bruce M. Perry | Karl Shurtliff | Michael J. Kempf | Darrell Babbitt | Larry Eastland | Celia R. Gould | Jim Pratt | Jack Riggs | Jim Risch |
| Ada | 6,587 | 5,322 | 292 | 775 | 5,486 | 5,658 | 1,020 | 11,496 | 10,695 |
| Adams | 46 | 29 | 4 | 40 | 60 | 106 | 44 | 205 | 411 |
| Bannock | 1,731 | 2,127 | 81 | 212 | 1,079 | 743 | 229 | 976 | 2,417 |
| Bear Lake | 74 | 77 | 2 | 58 | 190 | 286 | 69 | 107 | 718 |
| Benewah | 382 | 191 | 17 | 40 | 30 | 44 | 30 | 246 | 142 |
| Bingham | 299 | 313 | 7 | 130 | 1,714 | 582 | 256 | 884 | 2,139 |
| Blaine | 435 | 316 | 6 | 26 | 53 | 95 | 24 | 90 | 245 |
| Boise | 110 | 84 | 12 | 36 | 134 | 158 | 51 | 194 | 390 |
| Bonner | 810 | 498 | 81 | 122 | 306 | 369 | 180 | 1,212 | 930 |
| Bonneville | 609 | 909 | 24 | 200 | 2,890 | 750 | 230 | 1,448 | 2,988 |
| Boundary | 89 | 52 | 6 | 82 | 100 | 100 | 106 | 510 | 344 |
| Butte | 18 | 29 | 1 | 30 | 105 | 58 | 30 | 82 | 357 |
| Camas | 15 | 6 | 3 | 6 | 10 | 43 | 1 | 22 | 75 |
| Canyon | 1,290 | 791 | 91 | 389 | 1,950 | 1,547 | 661 | 4,171 | 5,180 |
| Caribou | 57 | 38 | 1 | 41 | 153 | 72 | 43 | 132 | 435 |
| Cassia | 93 | 69 | 2 | 124 | 295 | 1,267 | 113 | 416 | 1,263 |
| Clark | 1 | 1 | 0 | 14 | 38 | 44 | 13 | 28 | 154 |
| Clearwater | 334 | 176 | 8 | 53 | 192 | 143 | 91 | 294 | 405 |
| Custer | 23 | 25 | 1 | 76 | 105 | 216 | 70 | 111 | 414 |
| Elmore | 308 | 250 | 20 | 51 | 307 | 319 | 76 | 532 | 802 |
| Franklin | 39 | 46 | 7 | 112 | 441 | 195 | 162 | 231 | 1,077 |
| Fremont | 46 | 71 | 16 | 63 | 543 | 289 | 77 | 222 | 876 |
| Gem | 305 | 171 | 24 | 77 | 338 | 353 | 170 | 755 | 1,292 |
| Gooding | 189 | 94 | 17 | 34 | 91 | 494 | 53 | 230 | 825 |
| Idaho | 197 | 139 | 12 | 132 | 483 | 346 | 279 | 512 | 1,493 |
| Jefferson | 74 | 119 | 2 | 63 | 907 | 292 | 77 | 434 | 1,024 |
| Jerome | 129 | 81 | 17 | 32 | 69 | 461 | 36 | 230 | 548 |
| Kootenai | 1,718 | 895 | 263 | 260 | 808 | 561 | 313 | 7,997 | 1,311 |
| Latah | 827 | 458 | 18 | 67 | 119 | 153 | 78 | 670 | 553 |
| Lemhi | 44 | 25 | 5 | 91 | 262 | 209 | 59 | 199 | 708 |
| Lewis | 144 | 81 | 5 | 17 | 45 | 44 | 38 | 75 | 191 |
| Lincoln | 64 | 50 | 1 | 12 | 36 | 120 | 21 | 73 | 228 |
| Madison | 76 | 81 | 12 | 66 | 923 | 388 | 111 | 398 | 1,578 |
| Minidoka | 152 | 105 | 9 | 66 | 147 | 708 | 75 | 318 | 670 |
| Nez Perce | 1,329 | 624 | 25 | 91 | 217 | 277 | 91 | 636 | 667 |
| Oneida | 18 | 22 | 0 | 43 | 80 | 96 | 37 | 108 | 350 |
| Owyhee | 85 | 58 | 11 | 25 | 135 | 236 | 52 | 242 | 569 |
| Payette | 171 | 174 | 17 | 84 | 270 | 418 | 141 | 638 | 1,487 |
| Power | 86 | 85 | 1 | 24 | 111 | 91 | 30 | 141 | 308 |
| Shoshone | 829 | 436 | 9 | 16 | 25 | 27 | 34 | 476 | 79 |
| Teton | 108 | 96 | 6 | 59 | 161 | 142 | 56 | 122 | 391 |
| Twin Falls | 551 | 354 | 18 | 133 | 335 | 3,088 | 168 | 1,039 | 1,408 |
| Valley | 136 | 127 | 12 | 39 | 184 | 217 | 70 | 355 | 701 |
| Washington | 134 | 102 | 7 | 50 | 152 | 329 | 73 | 432 | 769 |
| TOTAL | 20,762 | 15,797 | 1,173 | 4,161 | 22,079 | 22,134 | 5,638 | 39,689 | 49,607 |
| Plurality | 4,965 | 9,918 | |||||||
| Percentage | 56.8% | 43.2% | 100% | 2.9% | 15.4% | 15.4% | 3.9% | 27.7% | 34.6% |