Zip Code | City | Population |
|---|---|---|
| 08822 | Flemington | 31,330 |
| 08889 | Whitehouse Station | 10,383 |
| 08833 | Lebanon | 9,057 |
| 08848 | Milford | 8,295 |
| 08530 | Lambertville | 8,114 |
| 07830 | Califon | 7,748 |
| 08801 | Annandale | 7,665 |
| 08809 | Clinton | 6,838 |
| 08867 | Pittstown | 5,819 |
| 08551 | Ringoes | 5,746 |
| 08826 | Glen Gardner | 5,186 |
| 08559 | Stockton | 4,902 |
| 08825 | Frenchtown | 4,556 |
| 08802 | Asbury | 4,380 |
| 08827 | Hampton | 3,710 |
| 08829 | High Bridge | 3,564 |
| 08804 | Bloomsbury | 3,116 |
| 08887 | Three Bridges | 1,411 |
| 07979 | Pottersville | 246 |
| 08858 | Oldwick | 0 |