Calamba's 2026 population is now estimated at 608,350. In 1950, the population of Calamba was 41,121. Calamba has grown by 13,392 in the last year, which represents a 2.25% 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 Calamba, which typically includes Calamba's population in addition to adjacent suburban areas.
| City | 2026 Pop. ↓ | Growth |
|---|---|---|
| Manila | 15,531,900 | 1.98% |
| Quezon City | 2,936,116 | 1.01% |
| Cebu City | 1,081,840 | 1.91% |
| Antipolo | 1,011,440 | 2.18% |
| Antipolo | 1,011,440 | 2.18% |
| Antipolo | 1,011,440 | 2.18% |
| Dasmarinas | 857,393 | 2.18% |
| Bacoor | 791,335 | 2.21% |
| Bacolod | 688,253 | 2.02% |
| San Jose del Monte | 669,390 | 1.89% |
| Imus | 659,041 | 2.77% |
| Angeles City | 616,440 | 2.54% |
| Santa Rosa | 518,486 | 2.49% |
| Santa Rosa | 518,486 | 2.49% |
| General Trias | 487,148 | 2.63% |
| Cabuyao | 452,511 | 2.49% |
| Binan | 450,151 | 2.28% |
| Lipa City | 447,875 | 2.27% |
| Mandaue City | 442,343 | 2.01% |
| Butuan | 407,731 | 1.99% |
| San Pedro | 403,950 | 2.05% |
| San Pedro | 403,950 | 2.05% |
| Iligan | 399,664 | 1.89% |
| Cotabato | 368,701 | 2.03% |
| San Fernando | 363,201 | 1.93% |
| San Fernando | 363,201 | 1.93% |
| San Fernando | 363,201 | 1.93% |
| San Fernando | 363,201 | 1.93% |
| San Fernando | 363,201 | 1.93% |