The current metro area population of Yongin in 2026 is 1,166,000, a 0.69% increase from 2025.

• The metro area population of Yongin in 2025 was 1,158,000, a 0.87% increase from 2024.
• The metro area population of Yongin in 2024 was 1,148,000, a 1.06% increase from 2023.
• The metro area population of Yongin in 2023 was 1,136,000, a 1.34% increase from 2022.