Mount Hagen's 2026 population is now estimated at 32,547. In 1980, the population of Mount Hagen was 13,446. Mount Hagen has grown by 193 in the last year, which represents a 0.6% annual change. These population values and projections come from Papua New Guinea city census series 1980-1990 via CityPopulation official attribution, Papua New Guinea city census 2000 via CityPopulation attribution, Papua New Guinea city census 2011 via CityPopulation NSO attribution and World Population Review Internal Projections .
| City | 2026 Pop. ↓ | Growth |
|---|---|---|
| Port Moresby | 594,535 | 3.32% |
| Lae | 192,479 | 1.72% |
| Wewak | 59,807 | 3.1% |
| Kimbe | 44,110 | 4.46% |
| Madang | 41,627 | 0.98% |
| Mount Hagen | 32,547 | 0.6% |
| Goroka | 29,330 | 1.68% |
| Vanimo | 22,723 | 3.3% |
| Popondetta | 20,124 | 3.17% |
| Daru | 18,770 | 1.44% |
| Kundiawa | 16,138 | 2.69% |
| Kiunga | 16,097 | 2.58% |
| Lorengau | 15,608 | 3.82% |
| Alotau | 15,188 | 1.66% |
| Kavieng | 13,679 | 2.15% |
| Tabubil | 12,981 | 1.58% |
| Mendi | 12,618 | 1.57% |
| Buka | 11,466 | 5.13% |
| Kokopo | 11,338 | 3.59% |
| Kerowagi | 9,980 | 5.13% |