The current metro area population of Tumkur in 2025 is 399,000, a 2.05% increase from 2024.

• The metro area population of Tumkur in 2024 was 391,000, a 2.09% increase from 2023.
• The metro area population of Tumkur in 2023 was 383,000, a 2.13% increase from 2022.
• The metro area population of Tumkur in 2022 was 375,000, a 1.9% increase from 2021.