data sydney 2023Sydney's 2025 population is now estimated at 5,248,790. In 1950, the population of Sydney was 1,689,940. Sydney has grown by 63,890 in the last year, which represents a 1.23% annualNotes. The Annual climate summary, usually published in the first week of the following month, lists the main features of the weather in Greater Sydney using the most timely and accurate