The current metro area population of Ubon Ratchathani in 2025 is 528,000, a 1.34% increase from 2024.

• The metro area population of Ubon Ratchathani in 2024 was 521,000, a 1.17% increase from 2023.
• The metro area population of Ubon Ratchathani in 2023 was 515,000, a 1.38% increase from 2022.
• The metro area population of Ubon Ratchathani in 2022 was 508,000, a 1.2% increase from 2021.