The current metro area population of Mannheim in 2025 is 348,000, a 0.58% increase from 2024.

• The metro area population of Mannheim in 2024 was 346,000, a 0.87% increase from 2023.
• The metro area population of Mannheim in 2023 was 343,000, a 0.88% increase from 2022.
• The metro area population of Mannheim in 2022 was 340,000, a 1.19% increase from 2021.