The most populated Zip Code in Sullivan County, New Hampshire is 3743, located in Claremont. * 2024 populations estimated based on the latest ACS 5-year data.
Zip Code | City | Population |
|---|---|---|
| 03743 | Claremont | 13,647 |
| 03773 | Newport | 7,758 |
| 03603 | Charlestown | 5,218 |
| 03753 | Grantham | 3,407 |
| 03782 | Sunapee | 3,074 |
| 03745 | Cornish | 1,914 |
| 03781 | Plainfield | 1,840 |
| 03280 | Washington | 1,097 |
| 03752 | Goshen | 1,077 |
| 03605 | Lempster | 934 |
| 03284 | Springfield | 798 |
| 03770 | Meriden | 638 |
| 03601 | Acworth | 478 |
| 03751 | Georges Mills | 374 |
| 03607 | South Acworth | 320 |