The current metro area population of Calcutta in 2026 is 16,151,000, a 1.93% increase from 2025.

• The metro area population of Calcutta in 2025 was 15,845,000, a 1.76% increase from 2024.
• The metro area population of Calcutta in 2024 was 15,571,000, a 1.55% increase from 2023.
• The metro area population of Calcutta in 2023 was 15,333,000, a 1.31% increase from 2022.