19 zips
| Zip Code | City | Population ↓ |
|---|---|---|
| 07860 | Newton | 26,047 |
| 07871 | Sparta | 21,437 |
| 07461 | Sussex | 18,731 |
| 07843 | Hopatcong | 11,098 |
| 07419 | Hamburg | 9,693 |
| 07821 | Andover | 9,662 |
| 07874 | Stanhope | 8,752 |
| 07462 | Vernon | 7,195 |
| 07826 | Branchville | 5,967 |
| 07416 | Franklin | 5,851 |
| 07422 | Highland Lakes | 5,280 |
| 07848 | Lafayette | 4,257 |
| 07827 | Montague | 4,109 |
| 07460 | Stockholm | 3,181 |
| 07418 | Glenwood | 2,559 |
| 07439 | Ogdensburg | 2,160 |
| 07822 | Augusta | 827 |
| 07851 | Layton | 263 |
| 07881 | Wallpack Center | 4 |
The data shown reflect ZCTAs from the US Census. As of 2024, there are 19 ZCTAs in Sussex County, New Jersey (US Census).