The current metro area population of Monrovia in 2026 is 1,856,000, a 3.4% increase from 2025.

• The metro area population of Monrovia in 2025 was 1,795,000, a 3.46% increase from 2024.
• The metro area population of Monrovia in 2024 was 1,735,000, a 3.4% increase from 2023.
• The metro area population of Monrovia in 2023 was 1,678,000, a 3.39% increase from 2022.