Milltown New Jersey ZIP Codes
Milltown holds a single ZIP code.
Every ZIP code in Milltown
| ZIP code | County |
|---|---|
| 08850 | Middlesex 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We do not publish a delivery type (standard, PO box, unique) or a neighbourhood for each ZIP.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 Milltown codes above are listed without a column we would have to invent.
Scope every ZIP code recorded for Milltown. 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 Milltown 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 Milltown accounts for 1% of it.
Every New Jersey ZIP prefix and the region it covers →
Area codes covering Milltown
ZIP codes and area codes are separate systems — one routes mail, the other routes calls — and they do not share boundaries. The codes below serve the same ground Milltown occupies.
Milltown New Jersey area codes in full →
Where Milltown's ZIP codes sit
- Reference points and footprint
- Not an official NANPA boundary
- Not a USPS delivery area
Cities near Milltown
| City | Distance | ZIP codes |
|---|---|---|
| New Brunswick New Jersey ZIP codes | 2.6 mi | 5 ZIP codes |
| South River New Jersey ZIP codes | 3.0 mi | 1 ZIP code |
| Highland Park New Jersey ZIP codes | 3.5 mi | 1 ZIP code |
| Spotswood New Jersey ZIP codes | 4.5 mi | 1 ZIP code |
| Helmetta New Jersey ZIP codes | 5.0 mi | 1 ZIP code |
| Somerset New Jersey ZIP codes | 5.3 mi | 2 ZIP codes |
| Sayreville New Jersey ZIP codes | 6.1 mi | 2 ZIP codes |
| Dayton New Jersey ZIP codes | 6.3 mi | 1 ZIP code |
Straight-line distance between place reference points, not driving distance.