The current metro area population of Cologne in 2026 is 1,157,000, a 0.35% increase from 2025.

• The metro area population of Cologne in 2025 was 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.