The current metro area population of Sakon Nakhon in 2025 is 406,000, a 1.25% increase from 2024.

• The metro area population of Sakon Nakhon in 2024 was 401,000, a 1.26% increase from 2023.
• The metro area population of Sakon Nakhon in 2023 was 396,000, a 1.28% increase from 2022.
• The metro area population of Sakon Nakhon in 2022 was 391,000, a 1.3% increase from 2021.