| County | Black Population |
| Essex |  331,303 |
| Union | 126,776 |
| Camden | 107,875 |
| Hudson | 98,005 |
| Middlesex | 89,728 |
| Burlington | 78,131 |
| Mercer | 77,455 |
| Passaic | 74,124 |
| Bergen | 61,574 |
| Monmouth | 48,463 |
| Atlantic | 47,638 |
| Cumberland | 34,426 |
| Somerset | 31,512 |
| Gloucester | 30,430 |
| Ocean | 19,752 |
| Morris | 16,919 |
| Salem | 9,662 |
| Cape May | 4,821 |
| Warren | 4,419 |
| Hunterdon | 3,663 |
| Sussex | 2,944 |