United States presidential election in New Jersey, 2004 By county By county

| County | Kerry__1 | Kerry__2 | Bush__3 | Bush__4 | Others__5 | Others__6 |
|---|---|---|---|---|---|---|
| Atlantic | 52.5% | 55746 | 46.6% | 49487 | 0.9% | 864 |
| Bergen | 51.9% | 207666 | 47.4% | 189833 | 0.7% | 2745 |
| Burlington | 53.1% | 110411 | 46.1% | 95936 | 0.8% | 1609 |
| Camden | 62.4% | 137765 | 36.9% | 81427 | 0.7% | 1741 |
| Cape May | 42.3% | 21475 | 56.8% | 28832 | 0.9% | 455 |
| Cumberland | 52.4% | 27875 | 45.8% | 24362 | 1.8% | 948 |
| Essex | 70.4% | 203681 | 28.8% | 83374 | 0.8% | 2293 |
| Gloucester | 52.2% | 66835 | 46.9% | 60033 | 0.9% | 1096 |
| Hudson | 67.3% | 127447 | 32.0% | 60646 | 0.7% | 1353 |
| Hunterdon | 39.1% | 26050 | 59.8% | 39888 | 1.1% | 742 |
| Mercer | 61.3% | 91580 | 37.9% | 56604 | 0.8% | 1326 |
| Middlesex | 56.3% | 166628 | 42.8% | 126492 | 0.9% | 2685 |
| Monmouth | 44.6% | 133773 | 54.6% | 163650 | 0.8% | 2516 |
| Morris | 41.7% | 98066 | 57.5% | 135241 | 0.8% | 1847 |