The current metro area population of Gaoxiong in 2025 is 1,566,000, a 0.45% increase from 2024.

• The metro area population of Gaoxiong in 2024 was 1,559,000, a 0.39% increase from 2023.
• The metro area population of Gaoxiong in 2023 was 1,553,000, a 0.39% increase from 2022.
• The metro area population of Gaoxiong in 2022 was 1,547,000, a 0.32% increase from 2021.