Australia Population 2024 27 Million Years Ago. Australia's population has hit a major milestone, surpassing 27 million people according to the bureau of statistics. According to the report, 27,5% of the population is aged younger than 15 years (16,8 million) and approximately 9,7% (6,13 million) is 60 years or older.
By lara pearce • senior producer. The quarterly growth was 129,400 people (0.5%).