| Locality | Post Code |
|---|---|
| Andover, Sussex | 07821 |
| Augusta, Sussex | 07822 |
| Barry Lakes, Sussex | 07422 |
| Beaver Lake, Sussex | 07416 |
| Beemerville, Sussex | 07461 |
| Branchville, Sussex | 07826 |
| Byram, Sussex | 07821 |
| Byram Township, Sussex | 07821 |
| Cliffwood Lake, Sussex | 07460 |
| Colesville, Sussex | 07461 |
| Franklin, Sussex | 07416 |
| Fredon, Sussex | 07860 |
| Fredon Township, Sussex | 07860 |
| Gerard, Sussex | 07460 |
| Glasser, Sussex | 07837 |
| Glenwood, Sussex | 07418 |
| Green, Sussex | 07821 |
| Green Township, Sussex | 07821 |
| Greendell, Sussex | 07839 |
| Hamburg, Sussex | 07419 |
| Hardyston, Sussex | 07419, 07460 |
| High Point, Sussex | 07461 |
| High Point Park, Sussex | 07461 |
| Highland Lakes, Sussex | 07422 |
| Hopatcong, Sussex | 07843 |
| Lafayette, Sussex | 07848 |