20 cities
| City | Rank | County | 2026 Pop. ↓ |
|---|---|---|---|
| Berlin | 1 | Coos County | 9,136 |
| Lancaster | 2 | Coos County | 3,190 |
| Gorham | 3 | Coos County | 2,661 |
| Whitefield | 4 | Coos County | 2,514 |
| Colebrook | 5 | Coos County | 2,096 |
| Northumberland | 6 | Coos County | 2,085 |
| Milan | 7 | Coos County | 1,343 |
| Jefferson | 8 | Coos County | 1,048 |
| Dalton | 9 | Coos County | 898 |
| Carroll | 10 | Coos County | 855 |
| Pittsburg | 11 | Coos County | 847 |
| Stewartstown | 12 | Coos County | 767 |
| Columbia | 13 | Coos County | 669 |
| Stratford | 14 | Coos County | 643 |
| Stark | 15 | Coos County | 461 |
| Shelburne | 16 | Coos County | 362 |
| Randolph | 17 | Coos County | 327 |
| Dummer | 18 | Coos County | 315 |
| Errol | 19 | Coos County | 289 |
| Clarksville | 20 | Coos County | 281 |
Coos County is the county generally considered as North County New Hampshire.