Calamba's 2025 population is now estimated at 594,958. In 1950, the population of Calamba was 41,121. Calamba has grown by 13,559 in the last year, which represents a 2.33% 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 | 2025 Pop. ↓ | Growth |
|---|---|---|
| Manila | 15,230,600 | 1.93% |
| Davao City | 2,033,990 | 2.14% |
| Cebu City | 1,061,620 | 1.82% |
| Zamboanga City | 995,027 | 1.84% |
| Antipolo | 989,859 | 2.23% |
| Dasmarinas | 839,131 | 2.22% |
| Cagayan de Oro City | 837,650 | 2.11% |
| Bacoor | 774,229 | 2.27% |
| General Santos City | 720,118 | 2.03% |
| Bacolod | 674,633 | 1.99% |
| San Jose del Monte | 656,972 | 1.8% |
| Imus | 641,269 | 3.1% |
| Basilan City | 606,508 | 2.37% |
| Angeles City | 601,140 | 2.77% |
| Calamba | 594,958 | 2.33% |
| Lapu Lapu City | 532,487 | 2.32% |
| Iloilo City | 508,601 | 1.77% |
| Santa Rosa | 505,897 | 2.68% |
| General Trias | 474,639 | 2.9% |
| Cabuyao | 441,523 | 2.68% |
| Binan | 440,132 | 2.37% |
| Lipa City | 437,942 | 2.36% |
| Mandaue City | 433,637 | 1.97% |
| Baguio City | 407,215 | 1.92% |
| Butuan | 399,791 | 1.94% |
| Tarlac | 399,709 | 1.88% |
| San Pedro | 395,834 | 2.04% |
| Iligan | 392,246 | 1.8% |
| Batangas City | 386,752 | 1.9% |
| Cotabato | 361,357 | 2.01% |
| San Fernando | 356,321 | 1.86% |