| Localité | Code postal |
|---|---|
| Alexandria, Grafton | 03222 |
| Ashland, Grafton | 03217 |
| Bath, Grafton | 03740 |
| Benton, Grafton | 03785 |
| Bethlehem, Grafton | 03574 |
| Bridgewater, Grafton | 03222, 03264 |
| Bristol, Grafton | 03222 |
| Campton, Grafton | 03223 |
| Canaan, Grafton | 03741 |
| Dorchester, Grafton | 03266 |
| East Hebron, Grafton | 03241 |
| Easton, Grafton | 03580 |
| Ellsworth, Grafton | 03223 |
| Enfield, Grafton | 03748 |
| Enfield Center, Grafton | 03749 |
| Etna, Grafton | 03750 |
| Franconia, Grafton | 03580 |
| Glencliff, Grafton | 03238 |
| Grafton, Grafton | 03240 |
| Groton, Grafton | 03241, 03266 |
| Hanover, Grafton | 03755 |
| Haverhill, Grafton | 03765 |
| Hebron, Grafton | 03241 |
| Holderness, Grafton | 03245 |
| Landaff, Grafton | 03585 |
| Lebanon, Grafton | 03766 |
| Codes postaux en New Hampshire | |
|---|---|
| Sullivan | Strafford |
| Rockingham | Merrimack |
| Hillsborough | Grafton |
| Coos | Cheshire |
| Carroll | Belknap |