The current metro area population of Antioch in 2026 is 385,000, a 1.32% increase from 2025.

• The metro area population of Antioch in 2025 was 380,000, a 1.06% increase from 2024.
• The metro area population of Antioch in 2024 was 376,000, a 1.62% increase from 2023.
• The metro area population of Antioch in 2023 was 370,000, a 1.37% increase from 2022.