The current metro area population of Mission Viejo in 2026 is 663,000, a 0.76% increase from 2025.

• The metro area population of Mission Viejo in 2025 was 658,000, a 0.77% increase from 2024.
• The metro area population of Mission Viejo in 2024 was 653,000, a 0.77% increase from 2023.
• The metro area population of Mission Viejo in 2023 was 648,000, a 0.78% increase from 2022.