18 cities
| City | County | 2025 Pop. ↓ |
|---|---|---|
| Windham | Rockingham County | 16,344 |
| Weare | Hillsborough County | 9,239 |
| Wolfeboro | Carroll County | 6,644 |
| Wakefield | Carroll County | 5,549 |
| Winchester | Cheshire County | 4,270 |
| Wilton | Hillsborough County | 4,001 |
| Walpole | Cheshire County | 3,738 |
| Warner | Merrimack County | 2,980 |
| Whitefield | Coos County | 2,521 |
| Webster | Merrimack County | 1,991 |
| Westmoreland | Cheshire County | 1,744 |
| Wilmot | Merrimack County | 1,478 |
| Woodstock | Grafton County | 1,450 |
| Washington | Sullivan County | 1,221 |
| Wentworth | Grafton County | 843 |
| Warren | Grafton County | 824 |
| Waterville Valley | Grafton County | 524 |
| Windsor | Hillsborough County | 275 |