The current metro area population of Khon-Kaen in 2025 is 536,000, a 1.32% increase from 2024.

• The metro area population of Khon-Kaen in 2024 was 529,000, a 1.15% increase from 2023.
• The metro area population of Khon-Kaen in 2023 was 523,000, a 1.36% increase from 2022.
• The metro area population of Khon-Kaen in 2022 was 516,000, a 1.38% increase from 2021.