Brisbane is the capital and largest city of the Australian state of Queensland and the third-most populous city in Australia, with a population of about 2.8 million. Brisbane lies at the centre of South East Queensland, a bio-geographical and urban region with an estimated population of 4.1 million as of 2024. The central business district is situated within a peninsula of the Brisbane River approximately 15 kilometres (9 mi) from its mouth at Moreton Bay.
