The current metro area population of Calamba in 2025 is 595,000, a 2.41% increase from 2024.

• The metro area population of Calamba in 2024 was 581,000, a 2.29% increase from 2023.
• The metro area population of Calamba in 2023 was 568,000, a 2.53% increase from 2022.
• The metro area population of Calamba in 2022 was 554,000, a 2.78% increase from 2021.