New Jersey ZIP codes
New Jersey holds 723 ZIP codes between 07001 and 08989. The tables rank the places and counties with the most codes; the guide below decodes the numbering.
Places with the most ZIP codes in New Jersey
| Place | ZIP codes |
|---|---|
| Trenton | 27 |
| Newark | 20 |
| Paterson | 14 |
| Jersey City | 12 |
| Camden | 5 |
| Princeton | 5 |
| Edison | 5 |
| New Brunswick | 5 |
| Toms River | 5 |
| Clifton | 5 |
| Plainfield | 4 |
| Elizabeth | 4 |
| Atlantic City | 3 |
| Cherry Hill | 3 |
| Vineland | 3 |
| East Orange | 3 |
| Morristown | 3 |
| Absecon | 2 |
| Mahwah | 2 |
| Ridgewood | 2 |
New Jersey counties by ZIP count
| County | ZIP codes |
|---|---|
| Bergen | 71 |
| Monmouth | 58 |
| Morris | 55 |
| Essex | 45 |
| Middlesex | 45 |
| Mercer | 39 |
| Passaic | 38 |
| Camden | 37 |
| Burlington | 34 |
| Atlantic | 32 |
Reading a New Jersey ZIP code
New Jersey holds 723 ZIP codes between 07001 and 08989, spread over 21 counties. Trenton leads the state with 27 codes, ahead of Newark with 20. Every code here opens with the digit 0: that opening number is the national postal region New Jersey belongs to, the next two digits name the sectional center that sorts the mail, and the final two point to the local office. A ZIP+4 suffix narrows delivery to a block face. Boundaries follow carrier routes rather than city limits, which is why Trenton spreads across 27 codes while some rural codes cross county lines.
Source: GeoNames postal dataset (CC BY 4.0), snapshot of 2026-07-09. Counts cover standard delivery ZIPs listed for New Jersey; unique and PO box codes may add to these totals.
Last updated: · Methodology and sources