Australian Population change 2021 to 2023.
Australia’s population was 26,638,544 people at 30 June 2023.
Australia’s population was 25,739,256 people at 30 June 2021
Australia’s population showed an increase of 899,288 from June 2021 to June 2023.
Overseas immigration was about 689,000 during the two years 2022/2023, or about 76% of the total population increase.
2023:
Net increase of Births less Deaths in Australia was 103,867.
Overseas migration 2022-23 was a net gain of 518,000 people.
Total: 621,867 (approx)
2022:
Net increase of Births less Deaths in Australia was 109,745.
Overseas migration 2021-22 was a net gain of 170,900 people.
Total: 280,645 (approx)
Those two figures show an increase of about 900,000, close enough to the ABS population change figures.