Mercer County ZIP Codes
New Jersey, United States · 39 codes
Mercer County in New Jersey has 39 ZIP codes, from 08520 to 08695, serving 39 places.
ZIP codes in Mercer
| ZIP Code | Places |
|---|---|
| 08520 | Hightstown |
| 08525 | Hopewell |
| 08534 | Pennington |
| 08540 | Princeton |
| 08541 | Princeton |
| 08542 | Princeton |
| 08543 | Princeton |
| 08544 | Princeton |
| 08550 | Princeton Junction |
| 08560 | Titusville |
| 08561 | Windsor |
| 08601 | Trenton |
| 08602 | Trenton |
| 08603 | Trenton |
| 08604 | Trenton |
| 08605 | Trenton |
| 08606 | Trenton |
| 08607 | Trenton |
| 08608 | Trenton |
| 08609 | Trenton |
| 08610 | Trenton |
| 08611 | Trenton |
| 08618 | Trenton |
| 08619 | Trenton |
| 08620 | Trenton |
| 08625 | Trenton |
| 08628 | Trenton |
| 08629 | Trenton |
| 08638 | Trenton |
| 08644 | Trenton |
| 08645 | Trenton |
| 08646 | Trenton |
| 08647 | Trenton |
| 08648 | Lawrence Township |
| 08650 | Trenton |
| 08666 | Trenton |
| 08690 | Trenton |
| 08691 | Trenton |
| 08695 | Trenton |
Frequently asked questions
What is the ZIP code of Mercer?
Mercer has 39 ZIP codes, from 08520 to 08695. The table lists the places each one serves.
How many places are listed in Mercer County?
39 places.
Source: GeoNames postal codes (CC BY 4.0), geonames.org, retrieved 2026-10-22. Place coordinates are approximate. Check with the national postal service before sending anything valuable.