Trenton New Jersey ZIP Codes

Trenton holds 27 ZIP codes, all inside one county and one postal prefix.

We do not publish a delivery type (standard, PO box, unique) or a neighbourhood for each ZIP.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 Trenton codes above are listed without a column we would have to invent.

Scope every ZIP code recorded for Trenton. 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.

Every Trenton ZIP code begins 086. Those first three digits identify the sectional center facility that processes mail for this part of New Jersey. Statewide that range covers 30 ZIP codes, so Trenton accounts for 90% of it.

Every New Jersey ZIP prefix and the region it covers →

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 Trenton occupies.

• 609 Area code 609
• 640 Area code 640

Trenton New Jersey area codes in full →

Straight-line distance between place reference points, not driving distance.