The current metro area population of Modesto in 2026 is 435,000, a 0.93% increase from 2025.

• The metro area population of Modesto in 2025 was 431,000, a 0.94% increase from 2024.
• The metro area population of Modesto in 2024 was 427,000, a 1.18% increase from 2023.
• The metro area population of Modesto in 2023 was 422,000, a 0.96% increase from 2022.