Hillsborough New Jersey Area Code
One area code covers Hillsborough: 908.
The code covering Hillsborough
| Area code | Primarily serves | In service |
|---|---|---|
| 908 | Newark | 1990 |
Scope the codes matched to Hillsborough. Source geoinfo-dataset (full_dataset) ZIP→NPA (2018 snapshot) and LocalCallingGuide NPA list (2026-07 NPA list). Updated . Overlay relationships come from the numbering-plan authority; the place match is computed.
Which part of town has which code
Hillsborough has a single code, so there is nothing to divide — every local line carries 908.
ZIP codes for the same city
Postal geography is organised separately from telephone geography, so Hillsborough’s 1 ZIP code do not map onto the codes above. They are listed in full, with the county each falls in, on the postal side of the site.
Hillsborough New Jersey ZIP codes →
Nearby places with different codes
These are the closest places to Hillsborough whose area codes are not the same set. If you are near one of them, a local number may carry a code that is not on the list above.
| City | Distance | Their area codes |
|---|---|---|
| Millstone Township New Jersey area codes | 3.1 mi | 609, 640, 732, 848 |
| Somerville New Jersey area codes | 4.9 mi | 609, 640, 732, 848, 908 |
| South Bound Brook New Jersey area codes | 7.3 mi | 732, 848 |
| Bound Brook New Jersey area codes | 7.3 mi | 732, 848 |
| Rocky Hill New Jersey area codes | 7.5 mi | 609, 640 |
| Somerset New Jersey area codes | 8.0 mi | 732, 848, 908 |
| Middlesex New Jersey area codes | 9.3 mi | 732, 848 |
| Hopewell New Jersey area codes | 10 mi | 609, 640 |
Straight-line distance between place reference points, not driving distance.