| City | County | 2026 Pop. ↓ |
|---|---|---|
| Windham | Rockingham County | 16,351 |
| Weare | Hillsborough County | 9,353 |
| Wolfeboro | Carroll County | 6,667 |
| Wakefield | Carroll County | 5,574 |
| Winchester | Cheshire County | 4,292 |
| Wilton | Hillsborough County | 4,047 |
| Walpole | Cheshire County | 3,699 |
| Warner | Merrimack County | 2,911 |
| Whitefield | Coos County | 2,533 |
| Webster | Merrimack County | 1,976 |
| Westmoreland | Cheshire County | 1,769 |
| Wilmot | Merrimack County | 1,475 |
| Woodstock | Grafton County | 1,432 |
| Washington | Sullivan County | 1,233 |
| Wentworth | Grafton County | 836 |
| Warren | Grafton County | 818 |
| Waterville Valley | Grafton County | 512 |
| Windsor | Hillsborough County | 283 |