The current metro area population of Gebze in 2025 is 847,000, a 1.93% increase from 2024.

• The metro area population of Gebze in 2024 was 831,000, a 2.21% increase from 2023.
• The metro area population of Gebze in 2023 was 813,000, a 2.52% increase from 2022.
• The metro area population of Gebze in 2022 was 793,000, a 2.99% increase from 2021.