The current metro area population of Cotonou in 2025 is 758,000, a 2.71% increase from 2024.

• The metro area population of Cotonou in 2024 was 738,000, a 2.22% increase from 2023.
• The metro area population of Cotonou in 2023 was 722,000, a 1.83% increase from 2022.
• The metro area population of Cotonou in 2022 was 709,000, a 1.43% increase from 2021.