data sydney 2024We are delhted to return to Sydney with the 2025 edition of dia's Sydney Cloud and Datacenter Convention.. As ditalization across Australia advances, so SydneyThe current metro area population of Sydney in 2025 is 5,249,000, a 1.23% increase from 2025. The metro area population of Sydney in 2025 was 5,185,000, a 1.25% increase from 2025.