| Localité | Code postal |
|---|---|
| Alton, Belknap | 03809 |
| Alton Bay, Belknap | 03810 |
| Barnstead, Belknap | 03218 |
| Belmont, Belknap | 03220 |
| Center Barnstead, Belknap | 03225 |
| Center Harbor, Belknap | 03226 |
| Gilford, Belknap | 03249 |
| Gilmanton, Belknap | 03237 |
| Gilmanton Iron Works, Belknap | 03837 |
| Laconia, Belknap | 03246 |
| Lakeport, Belknap | 03246 |
| Lochmere, Belknap | 03252 |
| Meredith, Belknap | 03253 |
| Moultonborough, Belknap | 03254 |
| New Hampton, Belknap | 03256 |
| Sanbornton, Belknap | 03269 |
| Tilton, Belknap | 03276 |
| Weirs Beach, Belknap | 03246 |
| West Alton, Belknap | 03810 |
| Winnisquam, Belknap | 03289 |
| Codes postaux en New Hampshire | |
|---|---|
| Sullivan | Strafford |
| Rockingham | Merrimack |
| Hillsborough | Grafton |
| Coos | Cheshire |
| Carroll | Belknap |