Port Antonio's 2026 population is now estimated at 22,832. In 1970, the population of Port Antonio was 10,426. Port Antonio has grown by 649 in the last year, which represents a 2.93% annual change. These population values and projections come from Jamaica census city counts via CityPopulation fallback access and World Population Review Internal Projections .
| City | 2026 Pop. ↓ | Growth |
|---|---|---|
| Spanish Town | 177,582 | 1.26% |
| Portmore | 154,509 | -1.09% |
| Montego Bay | 121,023 | 0.63% |
| Kingston | 73,019 | -4.88% |
| Old Harbour | 38,623 | 1.95% |
| Old Harbour Bay | 24,591 | 5.13% |
| Linstead | 23,132 | 2.82% |
| Port Antonio | 22,832 | 2.93% |
| Savanna-la-Mar | 21,780 | -0.26% |
| Santa Cruz | 19,827 | 4.38% |
| Brown's Town | 18,013 | 4.71% |
| Mandeville | 17,755 | -4.88% |
| Falmouth | 16,691 | 4.45% |
| Runaway Bay | 15,336 | 3.9% |
| Bog Walk | 14,669 | 2.99% |
| Discovery Bay | 14,249 | 5.13% |
| Porus | 12,291 | 4.88% |
| Junction | 12,026 | 5.13% |
| Negril | 11,583 | 2.65% |
| Lucea | 11,373 | 3.16% |
| Hayes | 11,202 | 0.34% |
| Ewarton | 10,960 | 0.78% |
| Highgate | 10,379 | 3.3% |
| Grange Hill | 8,834 | 1.63% |
| Port Maria | 8,542 | 0.9% |
| Oracabessa | 8,103 | 4.15% |
| Ocho Rios | 7,030 | -4.88% |
| Annotto Bay | 6,740 | 0.76% |
| Spaldings | 6,634 | 2.82% |
| Buff Bay | 6,591 | 2.31% |
| May Pen | 6,563 | -4.87% |
| Christiana | 6,124 | -2.11% |
| St. Ann's Bay | 5,844 | -4.23% |
| Claremont | 5,328 | 5.13% |
| Frankfield | 5,204 | 2.66% |
| Yallahs | 4,163 | -4.89% |
| Balaclava | 3,812 | 2.14% |
| Lionel Town | 3,805 | 0.34% |
| Duncans | 3,719 | 2.2% |
| Black River | 3,681 | -2.46% |
| Clark's Town | 3,636 | 1.28% |
| Chapelton | 3,377 | -1.72% |
| Darliston | 2,291 | -0.13% |
| Gayle/Lucky Hill | 2,109 | -2.9% |
| Port Morant | 2,045 | -2.34% |
| Bath | 1,426 | -2.6% |
| Morant Bay | 870 | -4.92% |