Plainfield New Jersey ZIP Codes

Plainfield holds 4 ZIP codes, all inside one county and one postal prefix.

Every ZIP code in Plainfield

The complete list of Plainfield, New Jersey ZIP codes with the county each falls in.
ZIP code	County
07060	Union County
07061	Union County
07062	Union County
07063	Union 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We do not publish a delivery type (standard, PO box, unique) or a neighbourhood for each ZIP.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 Plainfield codes above are listed without a column we would have to invent.

Scope every ZIP code recorded for Plainfield. 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 Plainfield ZIP code begins 070. Those first three digits identify the sectional center facility that processes mail for this part of New Jersey. Statewide that range covers 88 ZIP codes, so Plainfield accounts for 5% of it.

Every New Jersey ZIP prefix and the region it covers →

Area codes covering Plainfield

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 Plainfield occupies.

908 Area code 908

Plainfield New Jersey area codes in full →

Where Plainfield's ZIP codes sit

Each point is one Plainfield ZIP code, plotted from its record coordinates. The outline is the convex envelope of those points — a footprint, not a boundary.

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

Cities near Plainfield

The closest places to Plainfield with their own ZIP code list, nearest first.
City	Distance	ZIP codes
Watchung New Jersey ZIP codes	2.2 mi	1 ZIP code
Fanwood New Jersey ZIP codes	2.4 mi	1 ZIP code
South Plainfield New Jersey ZIP codes	2.8 mi	1 ZIP code
Dunellen New Jersey ZIP codes	3.1 mi	1 ZIP code
Westfield New Jersey ZIP codes	4.5 mi	2 ZIP codes
Warren New Jersey ZIP codes	5.1 mi	1 ZIP code
Middlesex New Jersey ZIP codes	5.2 mi	1 ZIP code
Mountainside New Jersey ZIP codes	5.4 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.