| Locality | Post Code |
|---|---|
| Academy, Essex | 07102 |
| Ampere, Essex | 07017 |
| Belleville, Essex | 07109 |
| Bloomfield, Essex | 07003 |
| Brookdale, Essex | 07003 |
| Caldwell, Essex | 07006 |
| Cedar Grove, Essex | 07009 |
| Doddtown, Essex | 07017 |
| East Orange, Essex | 07017, 07018, 07019 |
| Essex Fells, Essex | 07021 |
| Fairfield, Essex | 07004 |
| Glen Ridge, Essex | 07028 |
| Grove, Essex | 07003 |
| Ironbound, Essex | 07105 |
| Irvington, Essex | 07111 |
| Livingston, Essex | 07039 |
| Maplecrest, Essex | 07040 |
| Maplewood, Essex | 07040 |
| Midtown, Essex | 07102 |
| Millburn, Essex | 07041 |
| Montclair, Essex | 07042, 07043 |
| Newark, Essex | 07102, 07103, 07104, 07105, 07106, … |
| North, Essex | 07003 |
| North Caldwell, Essex | 07006 |
| Nutley, Essex | 07110 |
| Orange, Essex | 07050 |