19 zips
| Zip Code | City | Population ↓ |
|---|---|---|
| 07860 | Newton | 26,521 |
| 07871 | Sparta | 21,167 |
| 07461 | Sussex | 18,575 |
| 07843 | Hopatcong | 11,309 |
| 07419 | Hamburg | 10,102 |
| 07821 | Andover | 9,036 |
| 07874 | Stanhope | 8,498 |
| 07462 | Vernon | 6,892 |
| 07416 | Franklin | 5,746 |
| 07826 | Branchville | 5,575 |
| 07422 | Highland Lakes | 5,216 |
| 07848 | Lafayette | 4,513 |
| 07827 | Montague | 4,111 |
| 07460 | Stockholm | 2,990 |
| 07418 | Glenwood | 2,523 |
| 07439 | Ogdensburg | 2,231 |
| 07822 | Augusta | 904 |
| 07851 | Layton | 298 |
| 07881 | Wallpack Center | 0 |
The data shown reflect ZCTAs from the US Census. As of 2024, there are 19 ZCTAs in Sussex County, New Jersey (US Census).