The current metro area population of Pasto in 2025 is 403,000, a 0.75% increase from 2024.

• The metro area population of Pasto in 2024 was 400,000, a 0.76% increase from 2023.
• The metro area population of Pasto in 2023 was 397,000, a 0.76% increase from 2022.
• The metro area population of Pasto in 2022 was 394,000, a 0.77% increase from 2021.