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

| County | Kerry__1 | Kerry__2 | Bush__3 | Bush__4 | Others__5 | Others__6 |
|---|---|---|---|---|---|---|
| Caribou | 15.0% | 491 | 83.9% | 2753 | 1.1% | 37 |
| Cassia | 14.7% | 1153 | 83.9% | 6562 | 1.4% | 106 |
| Clark | 13.0% | 46 | 85.6% | 302 | 1.4% | 5 |
| Clearwater | 27.7% | 1117 | 70.4% | 2839 | 1.9% | 78 |
| Custer | 23.7% | 559 | 74.7% | 1762 | 1.6% | 37 |
| Elmore | 24.3% | 1959 | 74.6% | 6011 | 1.1% | 91 |
| Franklin | 9.0% | 456 | 89.6% | 4527 | 1.4% | 71 |
| Fremont | 12.8% | 741 | 86.1% | 4965 | 1.1% | 63 |
| Gem | 22.8% | 1628 | 75.9% | 5416 | 1.3% | 90 |
| Gooding | 24.0% | 1278 | 74.6% | 3973 | 1.4% | 74 |
| Idaho | 21.2% | 1689 | 75.5% | 6017 | 3.3% | 264 |
| Jefferson | 12.2% | 1084 | 86.5% | 7703 | 1.3% | 119 |
| Jerome | 20.4% | 1344 | 78.7% | 5177 | 0.9% | 59 |
| Kootenai | 32.2% | 17584 | 66.2% | 36173 | 1.5% | 846 |
| Latah | 48.0% | 8430 | 49.5% | 8686 | 2.5% | 437 |