A population decrease in South Australia is likely to see the State’s representation drop from 11 seats to 10 in a redistribution during the life of the current parliament.
According to a research paper from the Parliamentary Library, the next round of population figures will likely trigger a redistribution in South Australia, based on the “representation entitlement trigger”.
This could mean that the next election will see the numbers in the House of Representatives fall from 150 to 149.
Redistributions are also due during the term of the 45th Parliament in Victoria, Queensland, Tasmania and the Northern Territory. The number of electoral divisions in each of these will remain unchanged.
The Parliament Library’s Research Paper, “Electoral redistributions during the 45th Parliament” is shown below. The paper is written by Stephen Barber, from the Statistics and Mapping Section. The paper is part of the Library’s Research Paper Series, 2016-17. It is reproduced here under the terms of its Creative Commons licence.