The current metro area population of Cologne in 2025 is 1,153,000, a 0.35% increase from 2024.

• The metro area population of Cologne in 2024 was 1,149,000, a 0.44% increase from 2023.
• The metro area population of Cologne in 2023 was 1,144,000, a 0.62% increase from 2022.
• The metro area population of Cologne in 2022 was 1,137,000, a 0.71% increase from 2021.