The Commonwealth Electoral Act 1918 (the Electoral Act) requires that a redistribution process should be undertaken when:
- the number of members of the House of Representatives to which a state or territory is entitled has changed,
- the number of electors in more than one-third of the electoral divisions in a state (or one of the electoral divisions in the Australian Capital Territory or the Northern Territory) deviates from the average divisional enrolment by over ten per cent for a period of more than two months, or
- a period of seven years has elapsed since the last redistribution process was determined.
Indicative timing
Unless a redistribution is required to start earlier or is deferred, the next redistribution will be due to commence within 30 days after seven years have elapsed since the most recent redistribution was determined.
State/territory | Most recent determination of a redistribution was on … | A redistribution would be required to commence within 30 days of … |
---|---|---|
New South Wales | 25 February 2016 | A redistribution commenced on 9 August 2023. |
Victoria | 26 July 2021 | A redistribution commenced on 9 August 2023. |
Western Australia | 2 August 2021 | A redistribution commenced on 9 August 2023. |
Northern Territory | 7 February 2017 | A redistribution commenced on 22 February 2024 |
Tasmania | 14 November 2017 | 14 November 2024 |
Queensland | 27 March 2018 | 27 March 2025 |
Australian Capital Territory | 13 July 2018 | 13 July 2025 |
South Australia | 20 July 2018 | 20 July 2025 |
Updated: 22 February 2024