Hillsborough New Jersey ZIP Codes
Hillsborough holds a single ZIP code.
Every ZIP code in Hillsborough
| ZIP code | County |
|---|---|
| 08844 | Somerset County |
We do not publish a delivery type (standard, PO box, unique) or a neighbourhood for each ZIP. USPS delivery-type products are licensed, and no clean-rights source maps ZIP codes to neighbourhoods — so the Hillsborough codes above are listed without a column we would have to invent.
Scope every ZIP code recorded for Hillsborough. Source GeoNames US postal codes (2026-07 postal dump) and Census 2024 county Gazetteer (2024 Gazetteer). Updated . ZIP codes are delivery-route groupings, not areas; the boundaries implied by any ZIP map are approximations.
How these codes cluster
Every Hillsborough ZIP code begins 088. Those first three digits identify the sectional center facility that processes mail for this part of New Jersey. Statewide that range covers 67 ZIP codes, so Hillsborough accounts for 1% of it.
Every New Jersey ZIP prefix and the region it covers →
Area codes covering Hillsborough
ZIP codes and area codes are separate systems — one routes mail, the other routes calls — and they do not share boundaries. The code below serves the same ground Hillsborough occupies.
Hillsborough New Jersey area codes in full →
Where Hillsborough's ZIP codes sit
- Reference points and footprint
- Not an official NANPA boundary
- Not a USPS delivery area
Cities near Hillsborough
| City | Distance | ZIP codes |
|---|---|---|
| Millstone Township New Jersey ZIP codes | 3.1 mi | 2 ZIP codes |
| Manville New Jersey ZIP codes | 4.1 mi | 1 ZIP code |
| Raritan New Jersey ZIP codes | 4.4 mi | 1 ZIP code |
| Somerville New Jersey ZIP codes | 4.9 mi | 1 ZIP code |
| South Bound Brook New Jersey ZIP codes | 7.3 mi | 1 ZIP code |
| Bound Brook New Jersey ZIP codes | 7.3 mi | 1 ZIP code |
| Rocky Hill New Jersey ZIP codes | 7.5 mi | 1 ZIP code |
| Somerset New Jersey ZIP codes | 8.0 mi | 2 ZIP codes |
Straight-line distance between place reference points, not driving distance.