36 zips
| Zip Code | City | Population ↓ |
|---|---|---|
| 03766 | Lebanon | 10,702 |
| 03755 | Hanover | 10,563 |
| 03264 | Plymouth | 6,911 |
| 03222 | Bristol | 6,135 |
| 03561 | Littleton | 6,031 |
| 03748 | Enfield | 4,568 |
| 03741 | Canaan | 4,102 |
| 03784 | West Lebanon | 4,057 |
| 03223 | Campton | 3,398 |
| 03285 | Thornton | 2,763 |
| 03574 | Bethlehem | 2,545 |
| 03585 | Lisbon | 2,537 |
| 03217 | Ashland | 2,207 |
| 03785 | Woodsville | 2,141 |
| 03266 | Rumney | 2,075 |
| 03245 | Holderness | 1,927 |
| 03768 | Lyme | 1,672 |
| 03774 | North Haverhill | 1,606 |
| 03251 | Lincoln | 1,484 |
| 03580 | Franconia | 1,479 |
| 03777 | Orford | 1,289 |
| 03240 | Grafton | 1,248 |
| 03262 | North Woodstock | 1,172 |
| 03750 | Etna | 1,139 |
| 03241 | Hebron | 1,115 |
| 03282 | Wentworth | 1,075 |
| 03740 | Bath | 1,049 |
| 03779 | Piermont | 928 |
| 03279 | Warren | 810 |
| 03771 | Monroe | 807 |
| 03765 | Haverhill | 667 |
| 03586 | Sugar Hill | 625 |
| 03780 | Pike | 599 |
| 03215 | Waterville Valley | 269 |
| 03293 | Woodstock | 68 |
| 03238 | Glencliff | 52 |
The data shown reflect ZCTAs from the US Census. As of 2024, there are 36 ZCTAs in Grafton County, New Hampshire (US Census).