| Locality | Post Code |
|---|---|
| Annandale, Hunterdon | 08801 |
| Asbury, Hunterdon | 08802 |
| Baptistown, Hunterdon | 08803 |
| Bloomsbury, Hunterdon | 08804 |
| Califon, Hunterdon | 07830 |
| Clinton, Hunterdon | 08809 |
| East Amwell, Hunterdon | 08551 |
| Flemington, Hunterdon | 08822 |
| Frenchtown, Hunterdon | 08825 |
| Glen Gardner, Hunterdon | 08826 |
| Hampton, Hunterdon | 08827 |
| High Bridge, Hunterdon | 08829 |
| Lambertville, Hunterdon | 08530 |
| Lebanon, Hunterdon | 08833 |
| Little York, Hunterdon | 08834 |
| Milford, Hunterdon | 08848 |
| Oldwick, Hunterdon | 08858 |
| Pittstown, Hunterdon | 08867 |
| Pottersville, Hunterdon | 07979 |
| Quakertown, Hunterdon | 08868 |
| Readington, Hunterdon | 08870 |
| Ringoes, Hunterdon | 08551 |
| Rosemont, Hunterdon | 08556 |
| Sergeantsville, Hunterdon | 08557 |
| Stanton, Hunterdon | 08885 |
| Stockton, Hunterdon | 08559 |