Mercer County, New Jersey ZIP Codes
- ZIP records
22 - Cities represented
10 - Sum of listed ZIP population estimates
395,671
Population sum includes positive estimates in these ZIP records; it is not an official county population.
Top ZIP Codes by Population
| Rank | ZIP Code | City | Population estimate |
|---|---|---|---|
| 1 | 08540 | Princeton | 50,388 |
| 2 | 08618 | Trenton | 35,634 |
| 3 | 08610 | Trenton | 33,465 |
| 4 | 08611 | Trenton | 31,995 |
| 5 | 08648 | Lawrence Township | 31,323 |
| 6 | 08520 | Hightstown | 29,504 |
| 7 | 08619 | Trenton | 24,089 |
| 8 | 08638 | Trenton | 22,816 |
| 9 | 08550 | Princeton Junction | 21,067 |
| 10 | 08690 | Trenton | 18,841 |
Cities in Mercer County
- Hightstown
- Hopewell
- Lawrence Township
- Pennington
- Princeton
- Princeton Junction
- Robbinsville
- Titusville
- Trenton
- Windsor
ZIP Directory
- ZIP 08520
- ZIP 08525
- ZIP 08534
- ZIP 08540
- ZIP 08542
- ZIP 08544
- ZIP 08550
- ZIP 08560
- ZIP 08561
- ZIP 08608
- ZIP 08609
- ZIP 08610
- ZIP 08611
- ZIP 08618
- ZIP 08619
- ZIP 08620
- ZIP 08628
- ZIP 08629
- ZIP 08638
- ZIP 08648
- ZIP 08690
- ZIP 08691
Browse all ZIP data for New Jersey
Methodology: Records are grouped by the source file's listed county and state. Population sums add positive ZIP-level estimates and are not official county totals; city counts use distinct city labels in the source.