| Rank | City | 2020 Population | Growth Rate (Annual) |
|---|---|---|---|
| 1 | Manchester | 115,354 | 0.5% |
| 2 | Nashua | 91,221 | 0.5% |
| 3 | Concord | 43,709 | 0.2% |
| 4 | Dover | 32,774 | 0.9% |
| 5 | Rochester | 32,524 | 0.9% |
| 6 | Keene | 22,942 | -0.2% |
| 7 | Portsmouth | 21,963 | 0.6% |
| 8 | Laconia | 16,881 | 0.6% |
| 9 | Lebanon | 14,339 | 0.9% |
| 10 | Claremont | 12,926 | -0.3% |
| 11 | Somersworth | 11,930 | 0.1% |
| 12 | Berlin | 9,691 | -0.4% |
| 13 | Franklin | 8,806 | 0.4% |
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