The current metro area population of Tehran in 2026 is 9,840,000, a 1.13% increase from 2025.

• The metro area population of Tehran in 2025 was 9,730,000, a 1.19% increase from 2024.
• The metro area population of Tehran in 2024 was 9,616,000, a 1.22% increase from 2023.
• The metro area population of Tehran in 2023 was 9,500,000, a 1.26% increase from 2022.