| City | 2026 Pop. ↓ |
|---|---|
| Neiva | 408,218 |
| Necocli | 42,372 |
| Nuevo Belen de Bajira | 30,508 |
| Nechi | 29,853 |
| Nueva Granada | 23,393 |
| Neira | 21,492 |
| Nuqui | 18,970 |
| Nobsa | 17,186 |
| Natagaima | 15,989 |
| Nemocon | 15,058 |
| Norosi | 13,215 |
| Nilo | 11,069 |
| Narino | 11,059 |
| Novita | 10,016 |
| Nunchia | 9,434 |
| Nataga | 7,143 |
| Norcasia | 6,140 |
| Nocaima | 5,499 |
| Nuevo Colon | 5,244 |
| Narino | 4,550 |
| Nimaima | 3,669 |
| Narino | 2,492 |