Port Harcourt's 2025 population is now estimated at 3,793,780. In 1950, the population of Port Harcourt was 59,752. Port Harcourt has grown by 157,230 in the last year, which represents a 4.32% annual change.These population estimates and projections come from the latest revision of the UN World Urbanization Prospects. These estimates represent the Urban agglomeration of Port Harcourt, which typically includes Port Harcourt's population in addition to adjacent suburban areas.
| City | 2025 Pop. ↓ | Growth |
|---|---|---|
| Lagos | 17,156,400 | 3.75% |
| Kano | 4,645,320 | 3.44% |
| Abuja | 4,209,940 | 4.58% |
| Ibadan | 4,144,130 | 3.49% |
| Port Harcourt | 3,793,780 | 4.32% |
| Benin City | 2,044,650 | 3.65% |
| Onitsha | 1,767,110 | 4.26% |
| Uyo | 1,457,020 | 4.56% |
| Nnewi | 1,361,840 | 4.68% |
| Aba | 1,274,780 | 3.61% |
| Kaduna | 1,259,940 | 3.15% |
| Ikorodu | 1,196,820 | 4.51% |
| Ilorin | 1,099,960 | 3.41% |
| Warri | 1,076,120 | 4.33% |
| Owerri | 1,063,680 | 3.98% |
| Jos | 1,035,090 | 3.39% |
| Umuahia | 990,439 | 4.54% |
| Lokoja | 931,092 | 5.1% |
| Enugu | 906,658 | 3.55% |
| Maiduguri | 898,535 | 3.26% |
