| City | County | 2026 Pop. ↓ |
|---|---|---|
| New Gloucester | Cumberland County | 6,006 |
| North Berwick | York County | 5,413 |
| Norway | Oxford County | 5,376 |
| North Yarmouth | Cumberland County | 4,472 |
| Naples | Cumberland County | 4,186 |
| Norridgewock | Somerset County | 3,302 |
| Newport | Penobscot County | 3,210 |
| Nobleboro | Lincoln County | 1,927 |
| Newcastle | Lincoln County | 1,919 |
| Newburgh | Penobscot County | 1,747 |
| Newfield | York County | 1,702 |
| Northport | Waldo County | 1,653 |
| New Sharon | Franklin County | 1,637 |
| New Portland | Somerset County | 766 |
| New Vineyard | Franklin County | 756 |
| New Sweden | Aroostook County | 570 |
| New Limerick | Aroostook County | 569 |
| North Haven | Knox County | 438 |
| Newry | Oxford County | 431 |
| New Canada | Aroostook County | 307 |
| Northfield | Washington County | 176 |
| Nashville | Aroostook County | 24 |