| United States President | ||||||
|---|---|---|---|---|---|---|
| IND | CON | LIB | DEM | REP | IND | |
| Counties | Ross C. "Rocky" Anderson | Virgil H. Goode | Gary Johnson | Barack Obama | Mitt Romney | Jill Stein |
| Ada | 636 | 477 | 3,422 | 77,137 | 97,554 | 1,320 |
| Adams | 11 | 8 | 28 | 577 | 1,413 | 23 |
| Bannock | 218 | 102 | 442 | 13,214 | 21,010 | 274 |
| Bear Lake | 6 | 11 | 9 | 302 | 2,489 | 5 |
| Benewah | 16 | 28 | 46 | 1,164 | 2,596 | 34 |
| Bingham | 50 | 50 | 155 | 3,822 | 13,440 | 86 |
| Blaine | 40 | 8 | 167 | 5,992 | 3,939 | 48 |
| Boise | 11 | 11 | 63 | 1,053 | 2,284 | 23 |
| Bonner | 70 | 100 | 322 | 6,500 | 11,367 | 177 |
| Bonneville | 157 | 106 | 536 | 9,903 | 32,276 | 235 |
| Boundary | 22 | 34 | 77 | 1,225 | 3,138 | 48 |
| Butte | 7 | 4 | 8 | 258 | 1,001 | 8 |
| Camas | 4 | 1 | 7 | 159 | 402 | 5 |
| Canyon | 242 | 228 | 945 | 19,866 | 44,369 | 440 |
| Caribou | 18 | 11 | 21 | 386 | 2,608 | 8 |
| Cassia | 25 | 22 | 70 | 1,098 | 7,154 | 27 |
| Clark | 3 | 3 | 16 | 66 | 235 | 5 |
| Clearwater | 28 | 18 | 44 | 1,032 | 2,541 | 33 |
| Custer | 16 | 9 | 25 | 530 | 1,744 | 28 |
| Elmore | 40 | 33 | 124 | 2,513 | 5,227 | 64 |
| Franklin | 15 | 17 | 41 | 325 | 5,195 | 7 |
| Fremont | 19 | 12 | 34 | 810 | 4,907 | 20 |
| Gem | 44 | 38 | 93 | 1,957 | 5,311 | 47 |
| Gooding | 25 | 21 | 51 | 1,287 | 3,696 | 38 |
| Idaho | 24 | 59 | 76 | 1,708 | 5,921 | 49 |
| Jefferson | 23 | 23 | 97 | 1,303 | 9,895 | 40 |
| Jerome | 27 | 25 | 77 | 1,699 | 4,804 | 49 |
| Kootenai | 162 | 288 | 839 | 18,851 | 39,381 | 307 |
| Latah | 82 | 140 | 453 | 8,306 | 7,589 | 189 |
| Lemhi | 22 | 18 | 41 | 960 | 3,029 | 40 |
| Lewis | 6 | 13 | 15 | 396 | 1,173 | 11 |
| Lincoln | 7 | 9 | 17 | 469 | 1,141 | 19 |
| Madison | 12 | 13 | 84 | 832 | 13,445 | 26 |
| Minidoka | 34 | 16 | 55 | 1,390 | 5,442 | 36 |
| Nez Perce | 82 | 47 | 194 | 6,451 | 9,967 | 107 |
| Oneida | 7 | 2 | 19 | 217 | 1,838 | 6 |
| Owyhee | 16 | 26 | 31 | 833 | 2,794 | 24 |
| Payette | 26 | 22 | 88 | 2,271 | 6,004 | 84 |
| Power | 13 | 4 | 21 | 982 | 1,870 | 13 |
| Shoshone | 27 | 21 | 71 | 2,277 | 2,699 | 53 |
| Teton | 21 | 8 | 67 | 1,926 | 2,458 | 43 |
| Twin Falls | 145 | 103 | 348 | 7,541 | 19,773 | 232 |
| Valley | 22 | 17 | 78 | 2,095 | 2,664 | 43 |
| Washington | 18 | 16 | 36 | 1,104 | 3,128 | 28 |
| TOTAL | 2,499 | 2,222 | 9,453 | 212,787 | 420,911 | 4,402 |
| Plurality | 208,124 | |||||
| Percentage | 0.4% | 0.3% | 1.4% | 32.6% | 64.5% | 0.7% |