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

| County | Kerry__1 | Kerry__2 | Bush__3 | Bush__4 | Others__5 | Others__6 |
|---|---|---|---|---|---|---|
| Adams | 33.4% | 10511 | 66.2% | 20834 | 0.4% | 132 |
| Alexander | 52.1% | 2016 | 47.3% | 1831 | 0.7% | 26 |
| Bond | 43.8% | 3228 | 55.2% | 4068 | 1.0% | 73 |
| Boone | 42.4% | 8286 | 57.0% | 11132 | 0.6% | 123 |
| Brown | 34.6% | 895 | 65.0% | 1679 | 0.4% | 11 |
| Bureau | 44.5% | 7961 | 54.9% | 9822 | 0.7% | 119 |
| Calhoun | 50.5% | 1367 | 48.7% | 1317 | 0.8% | 22 |
| Carroll | 43.5% | 3537 | 55.7% | 4534 | 0.8% | 64 |
| Cass | 43.7% | 2492 | 55.5% | 3163 | 0.8% | 45 |
| Champaign | 50.4% | 41524 | 48.4% | 39896 | 1.2% | 1014 |
| Christian | 40.0% | 6112 | 59.2% | 9044 | 0.7% | 111 |
| Clark | 35.9% | 2877 | 63.5% | 5082 | 0.6% | 48 |
| Clay | 32.1% | 2101 | 67.4% | 4416 | 0.6% | 37 |
| Clinton | 39.7% | 6797 | 59.7% | 10219 | 0.7% | 115 |