The draft boundaries for the Western Australian state redistribution were released three weeks ago, but it has taken me some time to put together the map of the new boundaries, which are available for download now.
The commissioners implausibly managed to avoid moving an electorate from the country to the city despite a growing gap in enrolments.
Ten out of 59 seats were left with no changes. Most seats underwent small changes, with the most dramatic changes taking place in the north-east of Perth. The seats of Girrawheen and Mirrabooka were completely redrawn, with Girrawheen shifting south to take in much of Mirrabooka, and a new seat of Kingsway drawn in the northern half of Girrawheen. Kingsway is an unfortunate name for the new seat, being created right next door to the similarly-named Kingsley.
I haven’t yet done my own calculations about the new margins, but we can use William Bowe’s estimated margins, published at Poll Bludger.
William has one seat changing hands, with the Liberal seat of Hillarys, currently held by a 4.1% margin, turned into an effective dead heat with Labor just out in front. This seat was unusually close in 2017 thanks to the sitting Liberal MP running as an independent, and should be easily retained by the Liberal Party in 2021.
There are a number of marginal Labor seats where their position has been improved: from 5.8% to 8% in Balcatta, from 0.7% to 1.2% in Kingsley, from 2.5% to 4.9% in Burns Beach, from 1% to 2% in Jandakot, from 2.9% to 3.6% in Bicton, from 7.3% to 9.2% in Wanneroo, and from 1.4% to 2.3% in Murray Wellington. Labor’s margin in Joondalup has dropped from 0.6% to 0.1%.
You can toggle this map below to show the 2017 boundaries (red), the 2021 draft boundaries (green) or both.
You can download the Google Earth layers for both the Legislative Assembly and the Legislative Council from the maps page, along with WA electoral boundaries dating back to 2008.
The final electoral boundaries are due to be published by the end of November this year.