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

| County | Kerry__1 | Kerry__2 | Bush__3 | Bush__4 | Others__5 | Others__6 |
|---|---|---|---|---|---|---|
| Madison | 51.3% | 63399 | 48.0% | 59384 | 0.7% | 895 |
| Marion | 44.7% | 7694 | 54.7% | 9413 | 0.7% | 117 |
| Marshall | 42.6% | 2806 | 56.7% | 3734 | 0.7% | 44 |
| Mason | 44.8% | 3215 | 54.4% | 3907 | 0.8% | 61 |
| Massac | 37.8% | 2805 | 61.7% | 4578 | 0.6% | 41 |
| Menard | 32.5% | 2137 | 67.1% | 4408 | 0.4% | 29 |
| Mercer | 50.3% | 4512 | 49.1% | 4405 | 0.6% | 57 |
| Monroe | 41.5% | 6788 | 57.8% | 9468 | 0.7% | 114 |
| Montgomery | 46.2% | 5979 | 53.0% | 6851 | 0.8% | 100 |
| Morgan | 37.2% | 5650 | 61.9% | 9392 | 0.9% | 138 |
| Moultrie | 36.9% | 2388 | 62.3% | 4028 | 0.8% | 50 |
| Ogle | 37.4% | 9018 | 61.9% | 14918 | 0.6% | 155 |
| Peoria | 49.7% | 41121 | 49.6% | 41051 | 0.7% | 599 |
| Perry | 45.8% | 4770 | 53.6% | 5589 | 0.6% | 66 |
| Piatt | 36.4% | 3124 | 62.8% | 5392 | 0.8% | 70 |