The current metro area population of Ulaanbaatar in 2026 is 1,749,000, a 1.39% increase from 2025.

• The metro area population of Ulaanbaatar in 2025 was 1,725,000, a 1.53% increase from 2024.
• The metro area population of Ulaanbaatar in 2024 was 1,699,000, a 1.55% increase from 2023.
• The metro area population of Ulaanbaatar in 2023 was 1,673,000, a 1.7% increase from 2022.