The current metro area population of Lucknow in 2026 is 4,229,000, a 2.32% increase from 2025.

• The metro area population of Lucknow in 2025 was 4,133,000, a 2.35% increase from 2024.
• The metro area population of Lucknow in 2024 was 4,038,000, a 2.36% increase from 2023.
• The metro area population of Lucknow in 2023 was 3,945,000, a 2.36% increase from 2022.