The current metro area population of Samut Prakan in 2025 is 1,393,000, a 1.24% increase from 2024.

• The metro area population of Samut Prakan in 2024 was 1,376,000, a 1.25% increase from 2023.
• The metro area population of Samut Prakan in 2023 was 1,359,000, a 1.27% increase from 2022.
• The metro area population of Samut Prakan in 2022 was 1,342,000, a 1.36% increase from 2021.