United States presidential election in Idaho, 2004 By county By county

| County | Kerry__1 | Kerry__2 | Bush__3 | Bush__4 | Others__5 | Others__6 |
|---|---|---|---|---|---|---|
| Lemhi | 22.6% | 915 | 75.9% | 3079 | 1.5% | 61 |
| Lewis | 24.2% | 440 | 74.7% | 1359 | 1.2% | 21 |
| Lincoln | 24.8% | 466 | 74.0% | 1388 | 1.2% | 22 |
| Madison | 7.1% | 826 | 91.9% | 10693 | 1.0% | 118 |
| Minidoka | 18.5% | 1331 | 80.5% | 5797 | 1.0% | 73 |
| Nez Perce | 36.6% | 6476 | 62.2% | 11009 | 1.2% | 215 |
| Oneida | 14.3% | 304 | 83.9% | 1789 | 1.9% | 40 |
| Owyhee | 19.1% | 685 | 79.6% | 2859 | 1.3% | 46 |
| Payette | 22.6% | 1848 | 76.5% | 6256 | 0.9% | 77 |
| Power | 28.0% | 829 | 71.2% | 2105 | 0.8% | 24 |
| Shoshone | 43.7% | 2331 | 54.7% | 2922 | 1.6% | 84 |
| Teton | 38.4% | 1416 | 60.6% | 2235 | 1.1% | 39 |
| Twin Falls | 24.4% | 6458 | 74.4% | 19672 | 1.2% | 305 |
| Valley | 38.6% | 1843 | 60.0% | 2863 | 1.4% | 68 |