Sydney's population has officially hit five million people after a surge in new residents in the past dozen years.
But Sydney is no longer Australia's fastest-growing city, and will be overtaken by Melbourne as the country's largest metropolis in the mid-2050s if current growth rates continue, according to Daily Mail.
Figures released by the Australian Bureau of Statistics today reveal Melbourne's population grew by 2.4 per cent in 2015-16, ahead of Brisbane (1.8 per cent) and Sydney (1.7 per cent).
Melbourne had the largest population growth of all capital cities last financial year, increasing by nearly 108,000 people to hit 4.64 million.
Australia's slowest growing capital city was Adelaide, with a growth rate of less than one per cent.