The current metro area population of Chanthaburi in 2025 is 406,000, a 1.75% increase from 2024.

• The metro area population of Chanthaburi in 2024 was 399,000, a 2.31% increase from 2023.
• The metro area population of Chanthaburi in 2023 was 390,000, a 2.36% increase from 2022.
• The metro area population of Chanthaburi in 2022 was 381,000, a 2.7% increase from 2021.