Dunellen New Jersey ZIP Codes

Dunellen holds a single ZIP code.

Every ZIP code in Dunellen

The complete list of Dunellen, New Jersey ZIP codes with the county each falls in.
ZIP code	County
08812	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We do not publish a delivery type (standard, PO box, unique) or a neighbourhood for each ZIP.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 Dunellen codes above are listed without a column we would have to invent.

Scope every ZIP code recorded for Dunellen. Source GeoNames US postal codes (2026-07 postal dump) and Census 2024 county Gazetteer (2024 Gazetteer). Updated 15 July 2026. ZIP codes are delivery-route groupings, not areas; the boundaries implied by any ZIP map are approximations.

How these codes cluster

Every Dunellen 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 Dunellen accounts for 1% of it.

Every New Jersey ZIP prefix and the region it covers →

Area codes covering Dunellen

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 Dunellen occupies.

Dunellen New Jersey area codes in full →

Where Dunellen's ZIP codes sit

Each point is one Dunellen ZIP code, plotted from its record coordinates.

Reference points and footprint
Not an official NANPA boundary
Not a USPS delivery area

Cities near Dunellen

The closest places to Dunellen with their own ZIP code list, nearest first.
City	Distance	ZIP codes
Middlesex New Jersey ZIP codes	2.0 mi	1 ZIP code
South Plainfield New Jersey ZIP codes	2.9 mi	1 ZIP code
Plainfield New Jersey ZIP codes	3.1 mi	4 ZIP codes
Warren New Jersey ZIP codes	3.7 mi	1 ZIP code
Watchung New Jersey ZIP codes	3.9 mi	1 ZIP code
Bound Brook New Jersey ZIP codes	4.1 mi	1 ZIP code
South Bound Brook New Jersey ZIP codes	4.1 mi	1 ZIP code
Fanwood New Jersey ZIP codes	5.5 mi	1 ZIP code

Straight-line distance between place reference points, not driving distance. Where a place has no Census Gazetteer point, its postal centroid is used instead.