Zamboanga City's 2020 population is now estimated at 917,477. In 1950, the population of Zamboanga City was 107,216. Zamboanga City has grown by 56,591 since 2015, which represents a 1.28% 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 Zamboanga City, which typically includes Zamboanga City's population in addition to adjacent suburban areas.
| Year | Population | Growth Rate (%) | Growth |
|---|---|---|---|
| 2035 | 1,216,501 | 2.06% | 117,877 |
| 2030 | 1,098,624 | 2.00% | 103,597 |
| 2025 | 995,027 | 1.64% | 77,550 |
| 2020 | 917,477 | 1.28% | 56,591 |
| 2015 | 860,886 | 1.26% | 52,072 |
| 2010 | 808,814 | 2.92% | 108,464 |
| 2005 | 700,350 | 2.98% | 95,604 |
| 2000 | 604,746 | 3.52% | 95,953 |
| 1995 | 508,793 | 2.75% | 64,441 |
| 1990 | 444,352 | 2.56% | 52,786 |
| 1985 | 391,566 | 2.55% | 46,396 |
| 1980 | 345,170 | 10.60% | 136,577 |
| 1975 | 208,593 | 0.84% | 8,536 |
| 1970 | 200,057 | 4.07% | 36,173 |
| 1965 | 163,884 | 4.18% | 30,362 |
| 1960 | 133,522 | 2.29% | 14,318 |
| 1955 | 119,204 | 2.14% | 11,988 |
| 1950 | 107,216 | 0.00% |