The current metro area population of Wonsan in 2025 is 366,000, a 0.83% increase from 2024.

• The metro area population of Wonsan in 2024 was 363,000, a 0.83% increase from 2023.
• The metro area population of Wonsan in 2023 was 360,000, a 0.56% increase from 2022.
• The metro area population of Wonsan in 2022 was 358,000, a 0.85% increase from 2021.