Nagano, Japan Metro Area Population (1950-2026)
The current metro area population of Nagano in 2026 is 363,000, a 0.27% decline from 2025.
- The metro area population of Nagano in 2025 was 364,000, a 0.55% decline from 2024.
- The metro area population of Nagano in 2024 was 366,000, a 0.27% decline from 2023.
- The metro area population of Nagano in 2023 was 367,000, a 0.54% decline from 2022.
The full historical dataset is available for download here: Nagano, Japan Metro Population | Historical Data | 1950-2026.