The current metro area population of Yiyang, Hunan in 2025 is 638,000, a 2.24% increase from 2024.

• The metro area population of Yiyang, Hunan in 2024 was 624,000, a 2.46% increase from 2023.
• The metro area population of Yiyang, Hunan in 2023 was 609,000, a 2.7% increase from 2022.
• The metro area population of Yiyang, Hunan in 2022 was 593,000, a 2.95% increase from 2021.