The current metro area population of Douai-Lens in 2025 is 507,000, a 0.6% increase from 2024.

• The metro area population of Douai-Lens in 2024 was 504,000, a 0.2% increase from 2023.
• The metro area population of Douai-Lens in 2023 was 503,000, a 0.2% increase from 2022.
• The metro area population of Douai-Lens in 2022 was 502,000, a 0.2% increase from 2021.