Kumamoto, Japan Metro Area Population (1950-2026)
The current metro area population of Kumamoto in 2026 is 733,000, a 0.27% decline from 2025.
- The metro area population of Kumamoto in 2025 was 735,000, a 0.27% decline from 2024.
- The metro area population of Kumamoto in 2024 was 737,000, a 0.14% decline from 2023.
- The metro area population of Kumamoto in 2023 was 738,000, a 0.27% decline from 2022.
The full historical dataset is available for download here: Kumamoto, Japan Metro Population | Historical Data | 1950-2026.