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 |
|---|---|---|---|---|---|---|
| Ocean | 39.0% | 99839 | 60.2% | 154204 | 0.8% | 2263 |
| Passaic | 55.4% | 94962 | 43.9% | 75200 | 0.7% | 1149 |
| Salem | 46.2% | 13749 | 52.8% | 15721 | 1.0% | 311 |
| Somerset | 47.4% | 66476 | 51.7% | 72508 | 0.9% | 1295 |
| Sussex | 34.6% | 23990 | 64.1% | 44506 | 1.3% | 900 |
| Union | 58.7% | 119372 | 40.6% | 82517 | 0.7% | 1498 |
| Warren | 37.4% | 18044 | 61.3% | 29542 | 1.3% | 622 |